JPH11146191A - Reduced image generating method and its system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reduced image generating method and its system where an attractive reduced image is generated while keeping a balance between pixels and a space of a basic image. SOLUTION: The method has a step where basic image data of a dot matrix consisting of pixel dots with a logical value 1 or 0 and idle dots are read from a storage means and the method has another step, that is, an image reduction step where the basic image data are reduced to generate reduced image data. The image reduction step has a sub step where a logic value D(i) expressed in equation is calculated, in which a logical value A(i) is a (2i-2)th dot, a logical value B(i) is a (2i-2)th dot and a logical value C(i) is a 2ith dot, and 0th dot is a virtual dot outside or inside the basic image data, and another sub step where the logical value D(i) is taken as 1-dot corresponding to 2-dots of the (2i-1)th and the 2ith to generate the reduced image data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reduced image forming method for reducing a basic image composed of a dot matrix to form, for example, a stamp image to be formed on a stamp surface or a print image to be printed on a label printing surface. A method and an apparatus therefor.

[0002]

2. Description of the Related Art Conventionally, in this kind of reduced image creation method and apparatus, when reducing all or a part of a basic image to half (1/2) in a predetermined reduction direction, a dot group of the basic image data is reduced. The image data of the reduced image is divided into two adjacent dots in the reduction direction, a logical sum (OR) operation is performed on each of the two dots, and each of the two dots is replaced with one dot based on the calculation result. Has been created.

[0003]

In such a conventional reduced image creating method and apparatus, the logical values of each two dots [0, 0], [0, 1], [1, 0], [1, 0] are used. 1,
Since the OR operation is performed on the four patterns of [1], the operation result becomes 0 only in the case of [0, 0], and becomes 1 in the other three cases. For this reason, when the logical value 1 corresponds to the pixel dot and the logical value 0 corresponds to the blank dot, and when the basic image data is reduced by the OR operation, for example, all the patterns when 4 dots are reduced to 2 dots are used. As shown in FIG. 23, the ratio of the pixel dots of the reduced image becomes larger than that of the basic image, and as a result, the line of the entire image becomes thicker. Therefore, when the reduced image is applied to a stamp image or a printed image, the image is easily crushed. Particularly, when the image is a kanji having a large number of pixels, the space becomes extremely small, and characters (such as a seal image and a stamp) are used. The printed characters are crushed and difficult to see (FIG. 24)
(See (a) and (b)). In addition, when the present invention is applied to a stamp image, the line of the image tends to be thickened due to the imprint, so that the characters are more difficult to see.

Further, for example, in the Mincho style, as shown in FIG. 25, there is a subtle diagonal line as a vertical line.
In many cases, a dot shift occurs (the “no” portion of the female bias in FIG. 25), and the line width is different in the middle of the connection of the same vertical line, resulting in poor appearance. In particular, if the line width is 2
If the dot and the one dot are mixed, the bad appearance becomes conspicuous. Further, even if the operation of the logical product (AND) is performed instead of the logical sum (OR), the appearance probability of the logical values 1 and 0 of the operation result is only reversed (see FIG. 26). Pixel dots are missing in a part of the reduced image, which is not an essential solution. Further, even if a thinning process for extracting data for each column or each row from the basic image data is performed, some pixel dots of the reduced image are missing.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and is intended to reduce the size of a basic image.
It is an object of the present invention to provide a reduced image creation method and apparatus capable of creating a good-looking reduced image without crushing the image.

[0006]

SUMMARY OF THE INVENTION A reduced image forming method according to the present invention forms an image with pixel dots having one of a logical value 1 and a logical value 0, and forms an image other than an image with blank dots having the other logical value. Reading out the basic image data of the dot matrix forming the blank portion from the storage means, and reducing the read basic image data in at least one of the upper, lower, left, and right directions of the dot matrix to generate reduced image data. An image reduction step, in which the dots in the reduction direction of the reduction target area of the basic image data are changed from the first to m-th (m is a natural number of 2 or more) dots, and Assuming that the virtual dot is the 0th dot, 2i-2 (i = 1, 2, 3,.
.., N, where the logical value of the (n ≦ m / 2) -th dot is a logical value A (i), the logical value of the 2i−1-th dot is a logical value B (i), and the 2i-th dot is Is the logical value C (i),

Calculating the logical value D (i) represented by the logical expression of ## EQU1 ## and setting the logical value D (i) as one dot corresponding to the (2i-1) -th and 2i-th two dots to convert the reduced image data into And a step of creating.

According to this structure, after the basic image data of the dot matrix formed by the logical value 1 and the logical value 0 is read out from the storage means (reading step), the basic image data is read at least in the upper, lower, left and right directions of the dot matrix. Reduced image data is created in one direction. In this case, the dots in the reduction direction of the reduction target area are m
And the external virtual dot as the 0th dot, and 2i-
When the logical value of the second dot is a logical value A (i), the logical value of the 2i-1st dot is a logical value B (i), and the logical value of the 2i-th dot is a logical value C (i), The following logical expression of Equation 1

A dot having a logical value D (i) expressed by
Reduced image data is created as one dot of reduced image data corresponding to the 2i-1st and 2ith 2 dots of the basic image data. In the above logical expression, “+” indicates a logical sum (OR), “•” indicates a logical product (AND), and “￣” indicates a negative (NOT).

That is, in principle, when the logical value of the adjacent dots (logical value B and logical value C) is logical value 1, the logical expression of the above formula 1 is applied to the two dots. The corresponding one dot, that is, the logical value D is set to the logical value 1, but one of the logical value B and the logical value C is the logical value 0 (or the logical value 1) and the logical value B is immediately before the logical value B. When the logical value (logical value A) of the dot is a logical value 1, the logical value D is changed to a logical value 0. As described above, in the logical expression of the above expression 1 that defines the logical value D (i), [0, 0, [0, 0] is obtained by combining 1 or 0 of each of the logical values A (i), B (i), and C (i). 0], [0, 0, 1], [0,
[1,0], [0,1,1], [1,0,0],
[1,0,1], [1,1,0], [1,1,1]
There are eight types of patterns. The logical value D (i) is 1 for four of the eight types (,,), and is 0 and 0 for the other four types (,,). Therefore, even if the image is reduced, the balance between the pixel dots and the blank dots of the original basic image data can be properly maintained, and the appearance of the reduced image is not spoiled.

Further, since the virtual dots outside the basic image data are determined as the 0th dot, the subsequent dots can also be handled by the above logical expression, and the process of creating reduced image data is facilitated. be able to. Specifically, the logical value of the 0th dot is logical value A (1), the logical value of the first dot is logical value B (1), and the logical value of the second dot is logical value C (1). And the logical value A (2). The logical value of the third dot is logical value B.
(2) The logical value of the fourth dot becomes the logical value C (2) and the logical value A (3), and A (i), B
(I) and C (i) are sequentially determined. And A
From the combination of (1), B (1) and C (1), D
(1) calculates D (2) from a combination of A (2), B (2) and C (2), and similarly calculates D (i).

In the invention according to claim 1, it is preferable that the logical value A (1) of the 0th dot is a logical value 0.

According to this configuration, by setting the logical value A (1) of the 0th dot to the logical value 0, the logical value D of the first dot (reduced first dot) of the reduced image data is obtained.
(1) is D (1) = 1 · (B (1) + C (1)) +
(B (1) · C (1)) and simplifying this,
D (1) = B (1) + C (1). Therefore, if the first or second dot of the basic image data has the logical value 1, the logical value D (1) = 1, so that
When the pixel dot corresponds to the logical value 1, the dot at the end as the reduced image data is the pixel dot. Therefore, when the two dots at the end of the basic image data, that is, the first or second dot are pixel dots,
The dot at the end of the reduced image data is always a pixel dot,
In the reduced image, the dot at the end does not disappear.

In another reduced image creating method according to the present invention, an image is formed by pixel dots having one of a logical value 1 and a logical value 0, and a blank portion other than the image is formed by a blank dot having the other logical value. A reading step of reading the basic image data of the dot matrix to be formed from the storage means, and partially reducing the read basic image data in at least one of the upper, lower, left, and right directions of the dot matrix to create partially reduced image data The image reduction step includes: setting the dots in the reduction direction of the reduction target area of the basic image data to the first to m-th (m is a natural number of 2 or more) dots; When the immediately preceding dot is the 0th dot, 2i−2 (i = 1, 2, 3,...,
n, where n ≦ m / 2) the dot has a logical value of A (i), the 2i−1th dot has a logical value of B (i), and the 2i-th dot Is a logical value C (i),

Calculating the logical value D (i) represented by the logical expression of ## EQU1 ## and converting the logical value D (i) into one dot corresponding to the 2i-1st and 2ith two dots. And a step of creating data.

According to this structure, after the basic image data of the dot matrix formed by the logical value 1 and the logical value 0 is read out from the storage means (reading step), the basic image data is read from the upper, lower, left and right sides of the dot matrix. Partially reduced image data is created by partially reducing the image in at least one direction. In this case, the dots in the reduction direction of the reduction target area to be partially reduced are set as the first to m-th dots, the dot immediately before the reduction target area is set as the 0th dot, and the reduction is performed from the 0th dot. In the direction, the logical value of the 2i-2nd dot is the logical value A (i), the logical value of the 2i-1st dot is the logical value B (i), and the logical value of the 2i-th dot is the logical value C (i). And the following logical expression of Equation 1

A dot having a logical value D (i) expressed by
Partially reduced partial reduced image data is created as one dot of partially reduced image data corresponding to the 2i-1st and 2ith 2 dots of the basic image data. As a result, the basic image data can be partially reduced, and the reduced portion can maintain a proper balance between pixel dots and blank dots, as in the reduced image creation method according to the first aspect. Thus, the appearance of the reduced portion is not impaired.

The reduced image forming apparatus according to the present invention forms an image by pixel dots having one of logical values 1 and 0, and forms a blank portion other than the image by blank dots having the other logical value. Reading means for reading the basic image data of the dot matrix from the storage means; and image reducing means for reducing the read basic image data in at least one of the upper, lower, left, and right directions of the dot matrix to create reduced image data. The image reduction means sets the dots in the reduction direction of the reduction target area of the basic image data to the first to m-th (m is a natural number of 2 or more) dots and sets the external virtual dots of the basic image data to 0.
In the case of the 0th dot, 2i−2 (i = 1, 2, 3,..., N, where n ≦
The logical value of the (m / 2) -th dot is represented by a logical value A (i)
And the logical value of the 2i-1st dot is the logical value B
(I) and the logical value of the 2i-th dot is a logical value C (i),

Calculate the logical value D (i) represented by the logical expression of the following expression, and calculate the logical value D (i) as 2i-1st and 2i
It is characterized in that reduced image data is created as one dot corresponding to the second two dots.

According to this configuration, after the basic image data of the dot matrix formed by the logical value 1 and the logical value 0 is read from the storage means by the reading means, the basic image data is converted into the dot matrix by the image reducing means. Shrink in at least one direction up, down, left and right,
Create reduced image data. In this case, the dots in the reduction direction of the reduction target area are the first to mth dots, the external virtual dot is the 0th dot, and the logical value of the 2i−2nd dot in the reduction direction from the 0th dot is set. The value is a logical value A (i), the logical value of the (2i-1) th dot is a logical value B (i), and the logical value of the 2i-th dot is a logical value C
When (i) is set, the following logical expression of Expression 1 is used.

A dot having a logical value D (i) expressed by
Reduced image data is created as one dot of reduced image data corresponding to the 2i-1st and 2ith 2 dots of the basic image data.

That is, in principle, when the logical value (logical value B and logical value C) of an adjacent dot is a logical value 1, the logical expression of the above formula 1 is applied to the two dots. The corresponding one dot, that is, the logical value D is set to the logical value 1, but one of the logical value B and the logical value C is the logical value 0 (or the logical value 1) and the logical value B is immediately before the logical value B. When the logical value (logical value A) of the dot is a logical value 1, the logical value D is changed to a logical value 0. As described above, in the logical expression of the above expression 1 that defines the logical value D (i), [0, 0, [0, 0] is obtained by combining 1 or 0 of each of the logical values A (i), B (i), and C (i). 0], [0, 0, 1], [0,
[1,0], [0,1,1], [1,0,0],
[1,0,1], [1,1,0], [1,1,1]
There are eight types of patterns. The logical value D (i) is 1 for four of the eight types (,,), and is 0 and 0 for the other four types (,,). Therefore, even if the image is reduced, the balance between the pixel dots and the blank dots of the original basic image data can be properly maintained, and the appearance of the reduced image is not spoiled.

Further, since the virtual dots outside the basic image data are determined as the 0th dot, the subsequent dots can also be dealt with by the logical expression of the above formula 1, and the process of creating reduced image data is easily performed. be able to. Specifically, the logical value of the 0th dot is logical value A (1), the logical value of the first dot is logical value B (1), and the logical value of the second dot is logical value C (1). And the logical value A (2). The logical value of the third dot is logical value B.
(2) The logical value of the fourth dot becomes the logical value C (2) and the logical value A (3), and A (i), B
(I) and C (i) are sequentially determined. And A
From the combination of (1), B (1) and C (1), D
(1) calculates D (2) from a combination of A (2), B (2) and C (2), and similarly calculates D (i).

In the invention according to claim 4, the logical value A (1) of the 0th dot is preferably a logical value 0.

According to this configuration, by setting the logical value A (1) of the 0th dot to the logical value 0, the logical value D of the first dot (reduced first dot) of the reduced image data is obtained.
(1) is D (1) = 1 · (B (1) + C (1)) +
(B (1) · C (1)) and simplifying this,
D (1) = B (1) + C (1). Therefore, if the first or second dot of the basic image data has the logical value 1, the logical value D (1) = 1, so that
When the pixel dot corresponds to the logical value 1, the dot at the end as the reduced image data is the pixel dot. Therefore, when the two dots at the end of the basic image data, that is, the first or second dot are pixel dots,
The dot at the end of the reduced image data is always a pixel dot,
In the reduced image, the dot at the end does not disappear.

Another reduced image forming apparatus according to the present invention forms an image with pixel dots having one of a logical value 1 and a logical value 0, and forms a blank portion other than the image with a blank dot having the other logical value. Reading means for reading the basic image data of the dot matrix to be formed from the storage means, and partially reducing the read basic image data in at least one of the upper, lower, left, and right directions of the dot matrix to create partially reduced image data The image reducing unit changes the dots in the reduction direction of the reduction target region of the basic image data from the first to m-th (m is a natural number of 2 or more) dots, When the immediately preceding dot is the 0th dot, 2i−2 (i = 1, 2, 3,...,
n, where n ≦ m / 2) the dot has a logical value of A (i), the 2i−1th dot has a logical value of B (i), and the 2i-th dot Is a logical value C (i),

Calculate the logical value D (i) represented by the logical expression of the following expression, and calculate the logical value D (i) as 2i-1st and 2i
It is characterized in that partially reduced image data is created as one dot corresponding to the second two dots.

According to this configuration, after the basic image data of the dot matrix formed by the logical value 1 and the logical value 0 is read from the storage means by the reading means, the basic image data is converted into the dot matrix by the image reducing means. Partially reduced image data is created by partially reducing the image in at least one of the upper, lower, left, and right directions. In this case, the dots in the reduction direction of the reduction target area to be partially reduced are set as the first to m-th dots, the dot immediately before the reduction target area is set as the 0th dot, and the reduction is performed from the 0th dot. In the direction, the logical value of the 2i-2nd dot is a logical value A (i), and the logical value of the 2i-1st dot is a logical value B
(I) When the logical value of the 2i-th dot is a logical value C (i), the logical expression of the following equation 1

A dot having a logical value D (i) expressed by
Partially reduced partial reduced image data is created as one dot of partially reduced image data corresponding to the 2i-1st and 2ith 2 dots of the basic image data. As a result, the basic image data can be partially reduced, and in the reduced portion, the balance between the pixel dots and the blank dots can be appropriately maintained, as in the reduced image creating apparatus according to the fourth aspect. Thus, the appearance of the reduced portion is not impaired.

[0022]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention; This stamp making apparatus exposes a stamp body formed of a UV curable resin with a stamp character (a stamp image including a picture) printed (printed) on an ink ribbon as a mask, and a desired stamp (stamp) is formed. The reduced image creation method and apparatus according to the present invention are mainly for creating stamp image data that is information for creating a mask on an ink ribbon. FIG. 1A is a plan view of the stamp creating apparatus, FIG. 1B is a front view of the stamp creating apparatus, and FIG. 11 is a control block diagram of the stamp creating apparatus.

As shown in FIG. 1, this stamp making device 1
The outer casing is formed by an upper and lower split device case 2, and an electronic device unit 3 is disposed at a front portion and a mechanical device portion 4 is disposed at a rear portion. A pocket 6 for mounting a stamp body A (see FIG. 3), which is an object to be stamped, on the apparatus body 5 is formed at the center of the mechanical device section 4. The pocket 6 has an opening / closing lid 7 with a window. Is provided. A function switch 8 for switching the seal making device 1 to a plate making (printing) operation or an exposure operation and opening the opening / closing lid 7 is provided on the left portion of the mechanical device section 4. The switching operation of the function switch 8 is reported to an input interface 304 of the control unit 300, which will be described later, and the operation position includes “exposure”, “input / plate making”, “OF”.
The operation display of “F” and “OPEN” is displayed, and the light emitting element 12 connected to the output interface 305 of the control unit 300 is located at the positions of “exposure”, “input / plate making” and “OPEN”. It is arranged. Further, on the right side of the mechanical device section 4, an insertion port 9a and a take-out port 9b are formed in the seal making device 1 for a plate making sheet B (see FIG. 4) for making a seal character label to be described later. . Further, a maintenance cover 10 is detachably provided in the mechanical device section 4 outside the pocket 6, and a ribbon cartridge 11 having an ink ribbon C is mounted inside the maintenance cover 10. (See FIG. 2).

An operation unit 21 is formed on an upper surface of the electronic device unit 3, and a control unit 300, which will be described later, is incorporated therein. The operation unit 21 includes an input interface 304 of the control unit 300.
, A display driver circuit 24 a (not shown) connected to the output interface 305, and the display driver circuit 2.
An indicator 24 driven by 4a is provided.
The operation dial 23 includes a circular execution key 31 provided at the center, a four-part cursor / conversion key 32 provided annularly outside the key, and a character provided annularly outside the key. It has a triple structure with the input key 33, and the hiragana and the like of the Japanese syllabary are printed on the surface of the character input key 33 (not shown). To input a seal character, first, a predetermined button 22a of the push button group 22 is pressed to determine an input mode such as a character size, and then the character input key 33 is rotated in accordance with the triangular mark 25, and the enter key 31 is pressed to input hiragana. The input of Hiragana is converted to Chinese characters by the cursor / conversion key 32 as appropriate. Then, when the desired seal character is created on the display 24, this is determined.

Here, a series of operations for creating a seal will be briefly described with reference to FIGS.
First, the function switch 8 is rotated from the “OFF” position, which is the standby position, to the “OPEN” position to open the opening / closing lid 7, and the seal body A is set in the pocket 6. With the setting of the stamp body A, the type of the stamp body A is detected by the stamp detection unit 66 connected to the input interface 304 of the control unit 300.

Next, the function switch 8 is rotated to the "input / plate making" position to shift the function to the plate making operation, and the push buttons 22 and the operation dial 23 are operated to input a seal character. After the input of the seal character is completed, the plate-making sheet B on which the seal character label is formed is inserted into the slot 9a.
Insert and set.

Next, a predetermined button 22a of the push button group 22 is operated to perform a plate making operation (plate making process), that is, printing. This printing is performed simultaneously on the ink ribbon C and the plate making sheet B, and the ink portion of the seal character of the ink ribbon C is transferred to the plate making sheet B. When the printing is completed, the (printed portion) C of the ink ribbon is sent to the other side for exposure, and at the same time, the plate making sheet B is sent out through the outlet 9b. Here, when it is confirmed from the sent plate making sheet B that there is no error in the seal character, the function switch 8 is then rotated to the "exposure" position to shift the function to the exposure operation and perform exposure.

When the exposure is completed, the function switch 8 is set to "O"
The opening / closing lid 7 is opened by rotating to the “PEN” position, and the seal body A is taken out from the pocket 6 and washed.
The seal is completed by this washing. When the seal is completed, the seal character label is peeled off from the plate-making sheet B, and the label is attached to the back of the seal.

Next, among the constituent parts of the seal making device 1,
Regarding parts related to the control unit 300 described later, FIGS.
The description will be made step by step with reference to FIG.

The ribbon cartridge 11 is configured to be detachable from the apparatus main body 5 so that the entire case can be replaced when the ink ribbon C is consumed. As shown in FIG. 2, a take-up reel 13 is provided at one end of the ribbon cartridge 11 and a take-out reel 14 is provided at the other end, and the ink ribbon C is taken out from the take-up reel 14 and is almost "L". It is bent in a letter shape and wound on the take-up reel 13. The ink ribbon C bent in an "L" shape
In the travel route, a printing section 64 described later faces a short side portion thereof, and an exposure section 65 faces a long side portion thereof. in this case,
The ink ribbon C and the plate making sheet B face the printing unit 64 at the same time, and the ink ribbon C after printing faces the exposure unit 65.

The ink ribbon C is composed of a transparent ribbon tape and ink applied to the ribbon tape.
m-thick one is used. When printing is performed on the ink ribbon C in the printing unit 64, the ink portion is transferred to the plate making sheet B. As a result, a negative image in which the ink characters are peeled off is formed on the ribbon tape of the ink ribbon C, and a positive image on which the ink characters are adhered is formed on the plate making sheet B. Then, the ink ribbon C is sent to the exposure section 65 on the other side to use the ink ribbon as a mask, while the plate-making sheet B is attached to the outside of the apparatus in order to confirm the seal character and to stick it on the created seal. Will be sent to

As shown in FIG. 4, the plate making sheet B is formed by laminating a base sheet Ba and an adhesive sheet Bb.
The whole is formed in a strip shape. A cut line Bc is formed in the adhesive sheet Bb in a square shape, and a square portion of the adhesive sheet Bb peeled off from the base sheet Ba along the cut line Bc becomes a seal character label Bd to be adhered to the back of the seal. . The stamp body A is prepared in several types having different shapes according to the use as the stamp. In correspondence with this, the plate-making sheet B is also provided with the shape of the stamp character label Bd (the shape of the cut line). ) Are available.

On the other hand, as shown in FIG.
A thin sponge (urethane foam) Ab is stuck to the tip of a rootstock (made of resin in the embodiment) Aa, and a resin base Ac that is not affected by ultraviolet rays is stuck to the sponge Ab, and further to the resin base Ac The ultraviolet curing resin constituting the stamp surface Ad is stuck. The portion of the stamp body A corresponding to the stamp character is cured by exposing the portion of the stamp body A to the ultraviolet curable resin (the stamp surface Ad) with ultraviolet rays using the ink ribbon C as a mask. In this state, the seal body A
Is removed from the pocket 6 and washed, whereby the water-soluble uncured portion is washed out to complete the seal. The symbol Ae in the figure is a cap made of resin.

Next, the printing section 64 will be described with reference to FIGS. The printing unit 64 includes a control unit 300
A head drive circuit 56a and a motor drive circuit 57a connected to the output interface 305, a print head (thermal head) 56 that is driven by the head drive circuit 56a and prints a seal character on the ink ribbon C,
The print head 5 is driven by the motor drive circuit 57a.
6, a platen roller 57 for feeding the ink ribbon C in response to the printing operation, and a head temperature sensor 56b provided on the head surface of the print head 56. Further, in the apparatus case 2 toward the contact portion between the print head 56 and the platen roller 57, there are formed a feed passage 181 into which the above-described plate making sheet B is fed and a feed-out passage 182 through which the plate making sheet B is fed out. ing. Inlet passage 18
The outlet 9a is formed at the upstream end of the outlet 1 and the outlet 9b is formed at the downstream end of the delivery passage 182.

The platen roller 57 is a driving roller, as described above, and unwinds the ink ribbon C from the unwinding reel 14 and holds the stencil sheet B between the printing head 56 and the ink ribbon C and the stencil. The sheet B is made to face the print head 56 in a state of being overlapped. The print head 56 is a thermal head, and prints the ink applied to the ribbon tape of the ink ribbon C by thermal transfer on the plate making sheet B.
Transfer to Due to this transfer, a portion corresponding to the seal character is peeled off from the ink ribbon C, and the transparent ribbon tape ground appears on the portion, while the peeled ink adheres to the plate making sheet B as a seal character. The head surface temperature sensor 56b is a temperature sensor such as a thermistor provided in close contact with the head surface of the print head 56 as described above.
To detect and report the surface temperature of the print head 56.

A sensor 183 for detecting the insertion of the plate-making sheet B and the feed reference position faces the feeding path 181, and the plate-making sheet B inserted into the feeding path 181.
Is sent by the platen roller 57 based on the detection result of the sensor 183, and printing is started from the position of the leading end of the stamp character label Bd. A separation claw 184 is formed at the tip (upstream end) of the left wall constituting the delivery passage 182, and the separation claw 184 allows the ink ribbon C and the plate-making to be sent in an overlapped state. The sheet B is separated. Then, the ink ribbon C is sent to the exposure section on the other side, while the plate making sheet B is sent out of the apparatus via the sending path 182.

Next, the exposure section 65 will be described with reference to FIGS. The exposure unit 65 includes a control unit 300
The light source driving circuit 191a is provided so as to face the light source driving circuit 191a connected to the output interface 305 of the printer and the stamp surface Ad of the stamp body A set in the pocket 6.
UV light source 191 driven by
Pressing plate 58 provided between 91 and the stamp surface Ad of the stamp body A
And The ultraviolet light source 191 is a self-heating hot cathode tube called a semi-hot tube, and is supported by a fluorescent tube holder provided on a substrate (not shown). The stamp surface Ad of the stamp body A, the holding plate 58, and the ultraviolet light source 191 are arranged parallel to each other with a gap therebetween, and the ink ribbon C is arranged between the stamp surface Ad and the holding plate 58. Have been.

The holding plate 58 is made of a transparent resin or the like.
The ink ribbon C is moved forward and pressed against the stamp surface Ad of the stamp body A. That is, at the time of exposure, the ink ribbon C is applied to the stamp surface Ad of the stamp body A by the pressing plate 58.
Is pressed, the ultraviolet light source 191 is turned on, and exposure is performed through the holding plate 58 using the ink ribbon C as a mask (see FIG. 5). The exposure unit 65 includes a control unit 3.
00 and the exposure unit 6
An ambient temperature sensor 67 such as a thermistor that detects and reports the ambient (environment) temperature of the device 5 is provided.

The first guide pin 53 and the second guide pin 54 also move in the same direction as the holding plate 58 advances. This movement is performed by the first and second guide pins 53, 5
The ink ribbon C stretched between the four is loosened, and the ink ribbon C is pressed against the stamp surface Ad of the stamp body A in a state where the tension is reduced, that is, in a state where no vertical wrinkles are generated.

This state will be described in more detail with reference to FIGS. 2 and 5. As shown in FIG. 2, a strong tension acts on the ink ribbon C running in FIG. Has wrinkles due to the extremely thin tape. Therefore, the ink ribbon C is transferred to the stamp body A as it is.
When the ink ribbon C is pressed against the stamped surface Ad, the ink ribbon C is pressed against the stamped surface Ad while generating vertical wrinkles, and the seal character is distorted and exposed. On the other hand, when the ink ribbon C is loosened,
A seal character is misaligned and exposed. Therefore, FIG.
As shown in (1), the first guide pin 53 and the second guide pin 54 are also advanced with the advance of the presser plate 58, so that the tension of the ink ribbon C is loosened. Is applied with a weak force that does not cause vertical wrinkles.

The ink ribbon C in the exposure state shown in FIG. 5 is bent rearward at both ends of the holding plate 58 by the tension pins 55 and the second path pins 52, and the chamfered portions 207 formed at both ends of the holding plate 58 are formed. By action
Unnecessary wrinkles are not generated on the ink ribbon C.

As described above, the positive image formed on the printing plate B by printing and the negative image formed on the ink ribbon C are used as a seal character label and an exposure mask, respectively. That is, the workmanship of these images is directly reflected in the workmanship of the finished product as a seal. In particular, if the ink ribbon C used as an exposure mask is distorted, the seal character is distorted and exposed, so that, in addition to the above-described mechanical structural measures against the above-described tension, the electric function against the heat amount. In order to prevent unnecessary wrinkles or the like from being generated on the ink ribbon C,

Next, a description will be given of the seal detecting section 66 which is linked to the opening and closing of the opening / closing lid 7. The seal detecting unit 66 detects that the seal main body A is mounted in the pocket 6 and determines the type of the seal main body A. The stamp body A is prepared in various shapes such as a square stamp, a name stamp, a business stamp, an address stamp, and the like. These stamp bodies A have the same length but width. And thickness are different. In order to set such various stamp bodies A having different widths and thicknesses at fixed positions in the pocket 6 in the width direction and the thickness direction, in this embodiment, as shown in FIGS. 6 bottom 6
b, four long and short bosses 251, 251, 251, 251 are erected.
Are formed with fitting holes Af (see FIG. 7).

Four bosses 251, 251, 251, 25
1 are arranged in a “T” shape, and correspondingly, for example, two fitting holes Af and Af are formed in a square mark (FIG. 7).
(A)), the business seal has four fitting holes Af, Af, A
f and Af (FIG. 7B) are formed. As described above, the number and depth of the fitting holes Af of the stamp main body A are different depending on the type of the stamp main body A, and various combinations of the fitting holes Af and the bosses 251 allow the various types of the fittings Af to be mounted on the pockets 6. It is positioned so that the center of the stamp surface Ad of the stamp body A always comes to the same position.

The back surface A of the stamp body A is opposite to the stamp surface Ad.
g, a plurality of small holes (type detection holes) Ah are formed side by side at an intermediate position in the thickness direction, and the type of the seal body A is changed in cooperation with the switch array 262 of the seal detection unit 66 described later. It is determined (see FIG. 8). In addition, on the back surface Ag of the stamp body A, a stamp character label Bd of the plate making sheet B separated from the ink ribbon C after printing and sent to the outside of the apparatus is stuck, whereby the small hole Ah is hidden. I have.

As shown in FIGS. 9 and 10, the stamp detecting section 66 is a switch holder (also serving as a wall surface of the pocket 6) disposed to face the back surface Ag of the stamp body A.
261 and a switch array 262 composed of six detection switches 263 supported by a switch holder 261. Each detection switch 263 includes a switch body 264 configured by a push switch or the like, and a switch top 265 whose tip faces the inside of the pocket 6. The switch top 265 includes a flat plate portion 266 and a detection protrusion 267 extending at a right angle from the flat plate portion 266.
Guided by a guide projection 268 formed on the switch holder 261 below the flat plate part 266 and guided by a detection projection 267 into a guide hole 269 formed on the switch holder 261,
Move forward and backward.

The switch body 264 is fixed to the back surface of the substrate 270, and its plunger 271 is connected to the switch top 26.
5 so as to abut against the flat plate portion 266.
In this case, the plunger 271 urges the switch top 265 toward the pocket 6 by the spring force, and the tip of the detection protrusion 267 projects from the guide hole 269 of the switch holder 261 into the pocket 6 by this urging. And the state of being immersed in the guide hole 269 against this bias corresponds to ON-OFF of the detection switch 263. In this case, when any one of the detection switches 263 in the switch array 262 is turned on, that is, when the tip of the detection protrusion 267 is immersed in the guide hole 269, the stamp body A is mounted. When all the detection switches 263 are turned off, that is, when the tip of the detection protrusion 267 protrudes into the pocket 6, it is detected that the seal body A is not mounted. Is done. Each detection switch 263 of the switch array 262 is turned on or off depending on the presence or absence of the corresponding small hole Ah in the stamp body A. Therefore, the type of the stamp body A is determined based on the ON / OFF patterns of the six detection switches 263.

FIG. 8 shows the relationship between the small hole Ah of the stamp body A and the six detection switches (detection protrusions) 263. And six detecting switches 263 from the relationship between the presence or absence of the small holes Ah, 2 ⁶ -1 types, namely 63 kinds of discrimination patterns is enabled. In this case, for a stamp body A having a narrow width such as a square mark, two detection switches 2 at both outer ends are used.
There is no small hole Ah for 63, 263, and these two detection switches 263, 263 protrude toward the space on both sides of the stamp body A. In other words, a narrow stamp body A such as a square mark is recognized as a discrimination pattern having an imaginary small hole Ah at the outermost end of the stamp body A.

Next, the control section 300 will be described with reference to FIG. The control unit 300 includes, for example, a microcomputer, and includes a CPU 301, a ROM,
302, a RAM 303, an input interface 304, an output interface 305, and a system bus 306 connecting these.

The ROM 302 stores various programs, dictionary data for kana-kanji conversion, font data such as characters and symbols, and fixed data such as predetermined seal frame data. The RAM 303 is used as a work area,
Also, it is used to store fixed data relating to user input. Note that the data stored in the RAM 303 is backed up even when the power is turned off.

The input interface 304 includes the function switch 8, the push button group 22 of the operation unit 21, the operation dial 23, and the head surface temperature sensor 5 of the printing unit 64.
6b, ambient temperature sensor 67 of exposure unit 65, stamp detection unit 6
6 functions as an interface for taking in input signals from the CPU 6 or the like via the system bus 306 into the CPU 301 or the RAM. On the other hand, the output interface 305
Various control signals and various control data from the CPU 301, the ROM 302, or the RAM 303 are transmitted to the system bus 3.
06, and output to the above-described light emitting element 12, the display driving circuit 24a of the operation unit 21, the head driving circuit 56a of the printing unit 64, the motor driving circuit 57a, the light source driving circuit 191a of the exposure unit 65, and the like. Function as an interface for

The CPU 301 performs multitask processing. The ROM 301 is determined according to input signals from the input interface 304 and processing contents at that time.
The RAM 303 is used as a work area based on the processing program in the ROM 302 and the ROM 302 and the RA when necessary.
Processing is performed by appropriately using fixed data stored in M303.

FIG. 12 shows an example of the main task activation process (flow until plate making process). As shown in the figure,
When the task of the main task activation process is activated, first, a work (work) area is secured (S11), and then the tasks of the display process (S12a (S12b, S12c)) and the unit (seal body) determination error process (S13) Starts. Next, tasks such as input error determination processing (S14), character etc. input processing (S15), and plate making (seal) image creation processing (S16) are activated. The tasks of these processes (S14, S15, S16) are simultaneously advanced and processed.

More specifically, there is no defect in the number of input characters between the time when the first character (character, symbol, graphic, etc.) is input and the time when the next character is input (S15). Is determined (S14), and an image for plate making is created (S16). If a character is input during these processes (S15), an input error determination process (S15)
14) and the plate making image creation process (S16) are immediately stopped, and each process is restarted from the beginning. That is, each time there is a change in the data of the already input character, these processes (S14, S16) are executed, and the plate making process (S17)
Before execution of, a prepress image is always created based on the latest character data.

In parallel processing such as the multitask processing described above, all the programs or the task processing as described above are regarded as interrupt processing, and an interrupt control circuit for controlling the priority of generated interrupts is employed. Can also be realized.

In the case of the stamp creating apparatus 1, the reduced image creating method and the apparatus according to the present invention are mainly realized by the control unit 300 and the operation unit 21, and are shown in FIGS.
The characteristic operation will be described below with reference to FIGS.

FIG. 13 is a flowchart showing an example of a reduction process of a character or the like by the reduced image creation method and apparatus according to the present embodiment. Hereinafter, according to this flowchart, a 24 × 24 dot matrix (FIG. 14) When the entire basic image formed in step (1) is reduced by に in the reduction direction from left to right, that is, the entire basic image is defined as a reduction target area, and a reduced image composed of a 24 × 12 dot matrix is obtained. The case of forming will be described. First, by operating the operation unit 21 of the impression creating device 1, the CPU 301 (reading means) converts basic image data of a character or the like to be reduced into
Reading from the ROM 302 or the RAM 303 (storage means) (S31) (reading step). In this case, a part of a character string such as a character that has already been input may be designated as a reduction target, or the input mode of a character or the like may be previously set to a reduction mode,
A character or the like to be reduced may be continuously input.

Then, dot row data of 8 bits is extracted from the read basic image data to be reduced (S32). That is, as shown in FIG. 14, basic image data composed of a dot matrix
It is treated as a dot row data group divided into three bits (upper data X, intermediate data Y, lower data Z). First, the first row (first) dot row data of the upper data X is processed by the CPU.
It is stored in an 8-bit register (register B) in 301. Subsequently, the dot row data of the adjacent second row (second row) is extracted and stored in another register (register C). Then, the logical value of each dot in the first column extracted first is defined as a logical value B, and the logical value of each dot in the second column extracted secondly is defined as a logical value C. The 0th column (0 The logical values of all the dots of the (th) are set to 0, these are stored in another register (register A), and the logical operation of the same bits is performed by the logical expression shown in the following Expression 2 (S33). ). Note that "+" in this logical expression
Is logical sum (OR), “•” is logical product (AND), “￣”
Represents negation (NOT).

[0059]

(Equation 2)

Then, the logical value D for each bit calculated by the above logical expression 2 is stored in the result area in the RAM 303 (S34). Thereafter, it is determined whether or not all the dot row data of the basic image to be reduced have been extracted (S35). If all the dot row data has not been extracted, the reduction from the first row to the 24th row is performed. The data is shifted by two bits in the direction (S36), another dot row data is taken out again, and each processing of S32 to S34 is repeated.

That is, as described above, the dot row data of the first row and the second row of the upper data X are stored in the registers B and C, respectively, and a logical operation is performed (first time). The calculation result is stored in the result area as dot row data of the reduced first row corresponding to the dot row data of the second row. Subsequently, the third and fourth dot row data are extracted. In this case, the dot column data of the second column stored in the register C is stored in the register A, and the dot column data of the third column and the fourth column are stored in the register B and the register C, respectively. Then, a logical operation is performed again (second time) by the above logical expression (2), and the reduced second row of dot row data corresponding to the third and fourth row of dot row data is stored in the result area. . Similarly, in the second logical operation, the register C
The dot row data of the fourth row stored in the
And the dot row data of the fifth and sixth columns are stored in the registers B and C, respectively, to perform logical operation processing, and the reduced third row corresponding to the dot row data of the fifth and sixth rows is stored. Is stored in the result area.

Similarly, the dot row data of each row is sequentially stored in the registers A, B and C to perform a logical operation, and the reduced row data corresponding to the dot row data of the 23rd row and the 24th row is obtained. The process is repeated until the twelve dot row data are stored in the result area.

Thereafter, similarly, the intermediate data Y and the lower data Z also sequentially store the dot row data from the first row to the 24th row in each register, and also have the logical value calculated by the above logical equation (2). D is stored in the result area,
Create reduced image data of 24 × 12 dots.

Here, regarding the logical expression shown in the above equation 2,
This will be described in detail with reference to FIG. 15 showing a dot matrix of the first to eighth columns of the upper data X. As mentioned above,
The dot row data stored in the three registers of the register A, the register B, and the register C are stored in each register from the 0th column of virtual dots to the data of the last 24th column in the reducing direction by two dots at a time. It is stored and a logical operation is performed. That is, one logical operation is performed for each of the three columns of data indicated by the thick line in the dot matrix of FIG. Therefore, the register A contains the 0th column, the 2nd column,
, The 22nd column, the register B has the first column, the third column,..., The 23rd column, and the register C has the second column. , The fourth row,..., The 24th row of dot row data are sequentially stored.

In principle, when the logical value of the dot adjacent to the left and right, that is, one of the logical value B and the logical value C is a logical value 1, the logical expression of the above formula 2 is obtained by
One dot corresponding to the dot, that is, the logical value D is set to the logical value 1, but one of the logical value B and the logical value C is the logical value 0 (or the logical value 1), and the dot of the dot on the front row side When the logical value of the immediately preceding dot, that is, the logical value A is the logical value 1, the logical value D is changed to the logical value 0. There are a total of eight combinations of these logical values A, B, and C, and the truth table thereof is shown in Table 1 below.

[0066]

[Table 1]

That is, instead of determining the logical value (logical value D) of each bit of the reduced image data by the logical sum of two adjacent dots (logical value B and logical value C) as in the related art,
With reference to the dot (logical value A) immediately before two adjacent dots, if the above condition is satisfied, the logical value is set to 0 (k = 6, 7 in Table 1). Then, the logical expression obtained from the truth table of Table 1 is Equation 2 above. In an actual circuit design, it is needless to say that the logical expression can be appropriately changed as long as the truth table in Table 1 is satisfied.

The logical values A, B, and C for each dot of the dot string data stored in the registers A, B, and C are represented by i, the number of logical operations (i
= 1, 2, 3,..., 12) is represented by the following general formula. That is, A (i) = 2i-2, B (i)
= 2i-1 and C (i) = 2i. Therefore,
The logical expression of the above equation 2 can also be expressed as the following equation 1.

[0069]

(Equation 1)

In the above-described extraction of the dot row data to be reduced, the dot row data of the register C is re-stored in the register A after the logical operation. Of the three stored dot row data, the last dot row data is stored in a register (eg, register C) as it is, and the newly extracted two dot row data are stored in the other two.
The logical operation is performed by storing each dot of the register C as a logical value A, each dot of the register A as a logical value B, and each dot of the register B as a logical value C. You may do so. In this case, since the last dot row data is not stored again,
The processing speed can be improved.

FIG. 16 is an explanatory view showing the process of reducing the character "Sai" consisting of 24 dots long by 24 dots wide in accordance with the above-described reduced image creating method. In the basic image data "E" shown in FIG. 7A, the pixel dots painted black correspond to the logical value 1 and the other blank dots correspond to the logical value 0, and the reduction processing is performed by the logical expression of the above equation (2). Then, as shown in FIGS. 7B, 7C, and 7D, a reduced image is created in which the upper data X, the intermediate data Y, and the lower data Z are each reduced in half in the reduction direction.
In this reduced image, the logical value of each dot is set to 0 in the dot row data of the 0th row as a virtual dot.
It was created as.

FIGS. 17A to 19A to FIG. 19H show FIG.
6 shows reduced images created for various other characters including the character "6". The right side of each reduced image shows a conventional reduction method, that is, a reduced image (conventional example) in which two adjacent dots on the left and right are reduced only by a logical sum. As shown in these figures, it can be seen that the reduced image according to the present embodiment has a good appearance without the characters being crushed due to thick lines unlike the conventional example.

In the present embodiment, the virtual dot data, that is, the logical values of all the dots in the 0th column are set to 0 so as to prevent the end line of the reduced image from being cut off. That is, assuming that the logical value of the dot in the 0th column is 1, as shown in Table 2 below, although the end portion (first and second columns) of the basic image data is a pixel dot having a logical value of 1, In some cases, the logical values of the dots in the reduced first column and the reduced second column of the reduced image data become 0, resulting in blank dots (four cases of k = 1 to 4).

[0074]

[Table 2]

Therefore, by setting the logical value of each dot in the 0th column to 0 as in the present embodiment, the logical expression of the above equation 2 becomes D = B + C, and as shown in Table 3 below, When the end of the image data, that is, the dot of the first column or the second column is a pixel dot having a logical value of 1 (k = 5 in Table 3)
In (16), the end of the reduced image data, that is, the dot in the reduced first row is always a pixel dot, and in the reduced image, the dot at that end disappears and the line can be prevented from being cut off.

[0076]

[Table 3]

Next, a case where the basic image is partially reduced to create partially reduced image data (partially reduced image data) will be briefly described with reference to FIGS. . For example, in a basic image including a dot matrix of 24 × 24 dots shown in FIG. 20, the fifth to 24th columns are set as reduction target areas, and only this portion is reduced to に. That is, the pixel dots are made to correspond to the logical value 1 and the blank dots are made to correspond to the logical value 0, and the reduction target area is reduced by the logical expression of the above equation 2, as in the above-described reduced image creation method. The partially reduced image created by this is shown in FIG.
It is shown in FIG. For comparison with this partially reduced image, FIG. 22 shows a partially reduced image created by reducing the reduction target area of the basic image in FIG. Show.

As is clear from FIGS. 21 and 22,
In the partially reduced image created by the conventional reduction method shown in FIG. 22, the display ratio of the pixel dots is larger than that of the original basic image, and the image is formed in a crushed state. In contrast,
In the partially reduced image shown in FIG. 21 created by the reduced image creation method of the present invention, the balance between pixel dots and blank dots is appropriately maintained, and a good image is formed without deteriorating the appearance.

As described above, in this embodiment, two adjacent dots (logical value B and logical value C) are
With reference to the dot (logical value A) immediately before the logical value B, one dot (logical value D) corresponding to the two dots to be reduced is determined by the logical expression of the above equation (2). In the combination of the logical values A, B, and C, the logical value D becomes 1 for 4 out of 8 types, and becomes 0 for the other 4 types. The balance between pixel dots and blank dots can be appropriately maintained, and a good-looking reduced image can be created.

Since all the dots of the virtual dot (dot row data of the 0th row) have a logical value of 0, if the data of the first or second row of the basic image data has a logical value of 1, the reduction is performed. The dot at the end of the image becomes a pixel dot, and the dot at the end does not disappear in the reduced image.

In the present embodiment, a case has been described in which the basic image formed by a dot matrix of 24 × 24 dots is reduced. However, the dot matrix of the basic image is not limited to this. It is needless to say that the present invention can also be applied to a basic image composed of a matrix having a size of

In the present embodiment, the basic image is reduced from left to right, but may be reduced from right to left. In this case, the right end of the dot matrix of the basic image is the 0th column (0th). Further, not only the horizontal direction but also the vertical direction can be reduced in the same manner. In addition, it is also possible to reduce in both vertical and horizontal directions. In this case,
First, the image is reduced in one of the upper, lower, left, and right directions, and then reduced in the other direction. As a result, a reduced image obtained by reducing the basic image to 1/4 can be created.

Further, in this embodiment, one dot corresponding to two dots to be reduced is determined by referring to the dot immediately before two adjacent dots, but if the logic is slightly changed, the adjacent dot is determined. It is also possible to create a reduced image without deteriorating the appearance by referring to the next dot after the two dots.

Further, in the above-described embodiment, the reduced image forming method and the apparatus according to the present invention are not limited to the thermal image forming method.
The present invention is applied to an impression creating apparatus in which ink is thermally transferred by a heating element of a head, but may be any of a sublimation type thermal transfer type and a fusion type thermal transfer type. Further, it goes without saying that the reduced image creating method and the apparatus according to the present embodiment can be applied not only to the impression creating apparatus but also to a tape printing apparatus such as an inkjet method. Also,
In addition, modifications can be made as appropriate without departing from the spirit of the present invention.

[0085]

As described above, according to the reduced image creation method and apparatus of the present invention, even if all or part of the basic image is reduced, the balance between pixel dots and blank dots is appropriately maintained. Thus, a good-looking reduced image can be created.

[Brief description of the drawings]

FIG. 1 is an external view showing a stamp making apparatus to which a reduced image method according to an embodiment of the present invention is applied.

FIG. 2 is a structural diagram showing the inside of a mechanical device section of the seal making device.

FIG. 3 is a plan view showing a stamp body.

FIG. 4 is a structural view showing a plate-making sheet.

FIG. 5 is a plan view showing the vicinity of an exposure unit of the machine unit.

FIG. 6 is a plan view showing around the pocket with the opening / closing lid removed.

FIG. 7 is a structural explanatory view showing a mounting state of various stamp bodies in pockets.

FIG. 8 is an explanatory diagram illustrating a discrimination pattern of various stamp bodies.

FIG. 9 is a vertical cross-sectional view illustrating a detection operation of the seal detection unit.

FIG. 10 is a plan view showing the vicinity of a pocket and a seal detection unit.

FIG. 11 is a control block diagram of the seal making device.

FIG. 12 is a flowchart illustrating an example of a main task activation process of the seal making device.

FIG. 13 is a flowchart illustrating an example of reduction processing of a character or the like by a reduced image creation method according to an embodiment of the present invention.

FIG. 14 is a dot matrix diagram of basic image data.

FIG. 15 is an explanatory diagram illustrating a combination of logical operation processes of basic image data represented by a dot matrix.

FIGS. 16A and 16B are explanatory diagrams for explaining processing of a reduced image creation method, wherein FIG. 16A is a basic image diagram, and FIGS. It is a reduced image figure.

FIG. 17 is a diagram illustrating a reduced image diagram obtained by reducing a basic image and a conventional reduced image diagram.

FIG. 18 is a diagram illustrating a reduced image diagram obtained by reducing a basic image and a conventional reduced image diagram.

FIG. 19 is a diagram illustrating a reduced image diagram obtained by reducing a basic image and a conventional reduced image diagram.

FIG. 20 is a basic image diagram for explaining a case of partial reduction.

21 is a partially reduced image diagram in which the basic image of FIG. 20 is partially reduced.

FIG. 22 is a partially reduced image diagram in which the basic image of FIG. 20 is partially reduced by a conventional reduction method.

23A and 23B are diagrams illustrating a logical operation in the conventional reduced image processing, in which FIG. 23A is a truth table, and FIG.

FIG. 24 is an image processed by the conventional reduced image processing, in which the left side is a basic image and the right side is a reduced image.

FIG. 25 is another image processed by the conventional reduced image processing, in which the left is a basic image and the right is a reduced image.

26A and 26B are diagrams illustrating a case where reduced image processing is performed by a logical product (AND) operation, wherein FIG. 26A is a truth table, and FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seal creation device 6 Pocket 8 Function switch 12 Light emitting element 21 Operation part 22 Push button group 23 Operation dial 24 Display 31 Execution key 32 Cursor / conversion key 33 Character input key 56 Print head 57 Platen roller 64 Printing part 65 Exposure part 66 Seal detection unit 67 Ambient temperature sensor 191 Ultraviolet light source 300 Control unit 301 CPU 302 ROM 303 RAM 304 Input interface 305 Output interface 306 System bus A Seal body B Plate making sheet C Ink ribbon X Upper data Y Intermediate data Z Lower data

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tomoyuki Niimura King Jim Co., Ltd. 2- 10-18 Higashi Kanda, Chiyoda-ku, Tokyo

Claims (6)

[Claims] An image is formed by pixel dots having one of a logical value of 1 and a logical value of 0, and basic image data of a dot matrix for forming a blank portion other than the image by blank dots having the other logical value. A reading step of reading from the storage unit; and an image reducing step of reducing the read basic image data in at least one of the upper, lower, left, and right directions of the dot matrix to create reduced image data. Defines the first to m-th (m is a natural number of 2 or more) dots in the reduction direction of the reduction target area of the basic image data, and sets the virtual dots outside the basic image data to the 0th dot. Then, from the 0th dot in the reduction direction, 2i−2 (i = 1,
.., N, where n ≦ m / 2) the logical value of the dot is the logical value A (i), and the logical value of the 2i−1-th dot is the logical value B (i). , And 2i
When the logical value of the th dot is a logical value C (i), Calculating a logical value D (i) represented by the following logical expression;
creating the reduced image data as one dot corresponding to the i-th two dots. 2. The reduced image creating method according to claim 1, wherein a logical value A (1) of the 0th dot is set to a logical value of 0. 3. A basic image data of a dot matrix in which an image is formed by pixel dots having one of a logical value 1 and a logical value 0 and a blank portion other than the image is formed by blank dots having the other logical value. A reading step of reading from the storage means; and an image reducing step of partially reducing the read basic image data in at least one of the vertical, horizontal, and horizontal directions of the dot matrix to generate partially reduced image data. The image reduction step sets the dots in the reduction direction of the reduction target area of the basic image data from the first to m-th (m is a natural number of 2 or more) dots and the dot immediately before the reduction target area. Is the 0th dot, 2i-2 (i = 1, i = 1, 2) in the reduction direction from the 0th dot
.., N, where n ≦ m / 2) the logical value of the dot is the logical value A (i), and the logical value of the 2i−1-th dot is the logical value B (i). , And 2i
Assuming that the logical value of the th dot is a logical value C (i), a step of calculating a logical value D (i) represented by a logical expression of the following formula: 2i-1st and the above 2
creating the partially reduced image data as one dot corresponding to the i-th two dots. 4. A basic image data of a dot matrix in which an image is formed by pixel dots having one of a logical value 1 and a logical value 0 and a blank portion other than the image is formed by blank dots having the other logical value. Reading means for reading from the storage means, and image reducing means for reducing the read basic image data in at least one of the vertical, horizontal and vertical directions of the dot matrix to create reduced image data. Defines the first to m-th (m is a natural number of 2 or more) dots in the reduction direction of the reduction target area of the basic image data, and sets the virtual dots outside the basic image data to the 0th dot. Then, from the 0th dot in the reduction direction, 2i−2 (i = 1,
.., N, where n ≦ m / 2) the logical value of the dot is the logical value A (i), and the logical value of the 2i−1-th dot is the logical value B (i). , And 2i
Assuming that the logical value of the third dot is a logical value C (i), a logical value D (i) represented by a logical expression of the following formula is calculated, and the logical value D (i) is calculated by the 2i. A reduced image creating apparatus, wherein the reduced image data is created as one dot corresponding to the -1st dot and the 2i-th two dots. 5. The logical value A (1) of the 0th dot
The reduced image creation device according to claim 4, wherein is a logical value 0. 6. A basic image data of a dot matrix in which an image is formed by pixel dots having one of a logical value 1 and a logical value 0 and a blank portion other than the image is formed by blank dots having the other logical value. Reading means for reading from the storage means, and image reduction means for partially reducing the read basic image data in at least one of the vertical, horizontal, and horizontal directions of the dot matrix to create partially reduced image data. The image reducing means sets the dots in the reduction direction of the reduction target area of the basic image data to the first to m-th (m is a natural number of 2 or more) dots, and the dot immediately before the reduction target area. Is the 0th dot, 2i-2 (i = 1, i = 1, 2) in the reduction direction from the 0th dot
.., N, where n ≦ m / 2) the logical value of the dot is the logical value A (i), and the logical value of the 2i−1-th dot is the logical value B (i). , And 2i
Assuming that the logical value of the third dot is a logical value C (i), a logical value D (i) represented by a logical expression of the following formula is calculated, and the logical value D (i) is calculated by the 2i. A reduced image creating apparatus, wherein the partially reduced image data is created as one dot corresponding to the -1st and the 2i-th two dots.