JP2501854B2 - Video type color film analyzer - Google Patents

Description

The present invention relates to a video-type color film analyzer for displaying a print-not required condition.

[Conventional technology]

As this type of color film analyzer, for example, as described in JP-A-62-141530, a long film in which a large number of color films are joined with a splice tape is set and recorded on this long film. A plurality of frames are sequentially captured by a TV camera (hereinafter referred to as TV camera), the image data of each frame obtained is written to a memory, and after this writing, the image data of each frame is read out to obtain the LATD value (large area average). Multiple CRs arranged in a line after gradation conversion by transmission density value and negative / positive conversion
It is known that each CRT sends one color image simulating a print photograph to each CRT.
With this device, color images of multiple frames are displayed in a line by multiple CRTs, and it is possible to manually correct the color and density of the color image displayed on the central CRT for verification. Cs on one side of the CRT for use
The RTs display the color images of uncommitted frames, and the CRTs on the opposite side display the corrected color images of the frames. Therefore, with respect to the color image displayed on the verification CRT, it is possible to determine whether or not the finish is proper by referring to the plurality of color images on both sides thereof.

[Problems to be Solved by the Invention]

The frames recorded on the color film include those photographed by mistake, out of focus, and the like. However, with a conventional color film analyzer, it is not possible to know which print-unnecessary frame is by simply observing a color image, so it is possible to specify that printing is not necessary for the same frame multiple times. there were.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a video type color film analyzer in which a mark indicating that printing is unnecessary is displayed on a color image.

[Means for solving the problem]

The above object can be achieved by providing means for designating a frame for which printing is unnecessary and means for displaying a mark indicating that printing is unnecessary on a part of the color image of the designated frame.

[Action]

At the time of film certification, for frames that do not show the main image or are out of focus, specify this frame to indicate that printing is not required. When the print unnecessary is designated, the print unnecessary mark is displayed on the image display means, for example, the color CRT in a state where the print unnecessary mark is fitted in a part of the color image. The print-unnecessary mark is obtained by inverting a part of the color image in negative / positive.

An embodiment of the present invention will be described in detail below with reference to the drawings.

〔Example〕

In FIG. 2 showing the external appearance of the color film analyzer of the present invention, a supply reel 11 and a take-up reel 12 are detachably attached above the inspection section main body 10. A long film 13 is wound around the supply reel 11 by joining a large number of developed color films, for example, color negative films, into a single roll film. Supply reel
The long film 13 drawn from 11 is the guide roller 14,1
It is sent to the photometric position via 5 and the feed roller 16. A photometric hood 17 is attached above the photometric position, and a sensor arranged therein measures the frame positioned at the photometric position. An arm 18 to which a notch sensor is attached is arranged between the feed roller 16 and the photometric position, and detects a notch 113 (see FIG. 6) formed along the center line of the frame to be printed.

The long film 13 that has passed the photometric position is sent to the imaging position. An imaging hood 21 containing a mirror is arranged above the imaging position, and the frame positioned at the imaging position is imaged by the TV camera via the mirror. In order to enable the positioning at the imaging position and the positioning at the photometric position independently, the recess 22
Is formed, and the long film 13 enters into this to form a loop. An arm 23 is arranged between the recess 22 and the imaging hood 21, and a splice sensor for detecting a joint of the color negative film and a notch sensor for detecting the notch 113 are provided in the arm 23.
Attached to.

The long film 13 that has passed the image pickup position reaches the take-up reel 12 after passing through the feed roller 24 and the guide rollers 25 and 26, and is wound around the outer circumference. At the floppy slot 28, a magnetic floppy 29 that stores the image data of the reference frame
Is loaded. Print data is recorded on the punch tape 30 in the form of punch codes at the end of the certification.
The print data includes data common to one color film and individual data determined for each frame. The common data includes the type and size of the color film (full size and half size), the number of common prints for one color film, and the like. The individual data includes exposure correction data, the number of individual prints designated for each frame, and print unnecessary.

A color monitor 33 having a large screen size and a keyboard 34 are placed on the operation unit main body 32. Although a color CRT is used as the color monitor (image display means), a liquid crystal display panel or the like may be used instead. The keyboard 34 includes a color key 35, a density key 36, a collection key 37, an alphanumeric key 38, an operation key 39, and a frame designation key 4.
It has 0, a next page key 41, and a display 42. The color key 35 is composed of a cyan key for correcting cyan, a magenta key for correcting magenta, and a yellow key for correcting yellow. Each color key is composed of a plurality of keys with different correction amounts in stages. Has been done. The density key 36 is for correcting the density, and a plurality of keys with different correction amounts are arranged in a line. The alphanumeric keys 38 are used to input data such as print conditions, the number of prints, the type and size of the film. The operation key 39 is used for instructing start of verification, printout of correction data, display mode designation, print unnecessary, and the like. The frame designating key 40 is for designating a frame to which data such as the correction amount, the number of prints, and the need for printing is input, and is composed of 16 keys corresponding to each frame. Next page key
Reference numeral 41 is for switching the display of the color monitor 33 to the next page. The display 42 is for displaying input data and the like.

The color monitor 33 displays color positive images of a plurality of frames arranged in a matrix on the display surface 33a thereof in the order of image pickup. In this embodiment, 16 frame display, 12 frame display, 1 frame display
There is frame display, and the display mode can be specified by operating the operation keys 39 of the keyboard 34 before the TV camera captures images. In the 16-frame display shown in FIG. 5, four columns (A
.. D), each column is composed of four frames, and a total of 16 frames of color positive images 45 are displayed. Here, the column A is the first image captured, and the column D is the last image captured. In the same row, the color image of the frame on the left side is captured earlier. In the 12-frame display, the color images of the four reference frames read from the magnetic floppy 29 are displayed in the D column, and the color images 45 of the 12 frames captured by the TV camera are displayed in the A to C columns. In the one-frame display, the color image of one frame is enlarged to the size of four frames and displayed on the display surface 33a.

FIG. 1 shows the outline of the color film analyzer of the present invention. In the long film 13, the notch sensor 50 installed in the arm 18 detects the notch 113 provided for each frame. The detection signal of the notch sensor 50 is sent to the CPU 52 via the I / O port 51. Since the distance between the notch sensor 50 and the photometric position is known in advance, the transfer amount of the long film 13 is measured from the time when the notch is detected, and the long film 13 is transferred by this distance, so that the notch 113 is attached. It is possible to position the created frame at the measurement position. The transfer amount of the long film 13 can be measured, for example, by counting the drive pulses of the pulse motor 53 that transfers the long film 13.

A negative mask 54 is arranged at the photometric position, and the frame positioned on the negative mask is radiated from a lamp 55 and illuminated by the illumination light condensed by two condenser lenses 56. The illuminated frame is measured by the scanner 58, the red sensor 59, the green sensor 60, and the blue sensor 61 arranged in the photometric hood 17. Scanner 58 has a lens
It consists of 62 and image area sensor 63,
Each point of the image formed on the photosensitive portion is photoelectrically converted and output as a time series signal. This time-series signal is converted into a digital signal by the A / D converter 64 and then sent to the arithmetic unit 65. The arithmetic unit 65 is composed of an 8-bit microcomputer, logarithmically converts the photometric data at each point, and writes the obtained density value in the memory. After this writing, the density value of each point belonging to the area designated in advance is read out, and these are arithmetically averaged to obtain the density value of the area. In this way, density values are obtained for a plurality of areas, for example, the central part of the frame, the upper half and the lower half of the remaining area excluding this central part, and pattern classification is performed from the distribution of the density values of each area. The density correction amount is calculated from an arithmetic expression prepared accordingly, and this is written in the RAM 67.

The red sensor 59, the green sensor 60, and the blue sensor 61 are for measuring the LATD value of the frame that has been positioned, and a lens is arranged in front of it. The signals output from these sensors 59 to 61 are sent to the A / D converter 6
After being converted into a digital signal in 4, the data is taken into the CPU 52 via the I / O port 51, the correction amount of each color and the ND filter value are calculated, and these are written in the RAM 67.

Two pairs of feed rollers 6 are provided on both sides of the negative mask 54.
8, 69 are arranged, and these are driven by the pulse motor 53. This pulse motor 53 is a motor controller 70
The rotation is controlled by and the long filter 13 is moved and the frame is positioned.

The frame that has passed the photometric position is transferred toward the imaging position after passing through a buffer loop. A notch sensor 71 and a splice sensor 72 attached to the arm 23 are arranged in front of this imaging position. This notch sensor
The notch detection signal output from 71 is sent to the CPU 52 via the I / O port 51 and used for positioning the frame as described above. Further, the splice sensor 72 generates a splice detection signal when detecting the joint of the long film and sends it to the CPU 52 via the I / O port 51. This CPU52
When the splice detection signal is received, as shown in FIG. 5, the image data of the splice frame 46 for displaying the position of the joint on the color monitor 33 is created.

At the imaging position, a negative mask 73 is arranged,
The frame positioned on the negative mask 73 is illuminated with the illumination light from the lamp 75 diffused by the mixing box 74. Two ND filters 76 are arranged between the mixing box 74 and the lamp 75, and they are moved by the pulse motor 77 in directions opposite to each other in a plane orthogonal to the optical path. The ND filter 76 is normally inserted in the standard position, and is retracted from the optical path for frames with overexposure, and further inserted in the optical path for frames with underexposure. In the present embodiment, the photometric position and the image pickup position are separated, the photometric position is arranged on the upstream side of the image pickup position, the coma is photometered at the photometric position, and the obtained photometric value or frame is positioned at the image pickup position. Since the ND filter 76 is adjusted before the operation, the imaging can be performed efficiently.

On both sides of the negative mask 73, two sets of feed rollers 78 and 7 are provided.
9 are arranged and driven by the pulse motor 80. The rotation of the pulse motor 80 is controlled by the motor controller 70, and the notched pieces are sequentially positioned at the imaging position. This positioned frame is a TV arranged in the verification unit body 10 via a mirror 82 arranged in the imaging hood 21.
The image is taken by the camera 83. This TV camera 83 has a red signal R,
Generates a green signal G, a blue signal B, and a sync signal sync. The red signal R, the green signal G, and the blue signal B are subjected to image processing by the image processing unit 84 and then sent to the color monitor 33. The write controller 85 creates an address signal and the like based on the synchronization signal sync, and controls writing in the image processing unit 84.
The read controller 86 is controlled by the CPU 52 and creates an address signal for reading by the image processing unit 84, a synchronization signal for sending to the color monitor 33, and the like.

The floppy driver 87 reads out the image data of the reference image written in the magnetic floppy 29 and writes it in the image processing unit 84. The puncher 88 is operated at the end of the film certification and records the print data of common data and individual data on the punch tape 30. Fixed data such as print conditions and a program for controlling the operation of each unit are written in the ROM 89. The work RAM 90 is used for backup of image data and the like.

FIG. 3 shows an embodiment of the image processing unit, and since the red signal processing system, the green signal processing system and the blue signal processing system have the same configuration, only the red signal processing system is shown. The red signal output from the TV camera 83 is amplified by the amplifier 95 and then sent to the clamp circuit 96 to set the level of the reference signal. The red signal output from the clamp circuit 96 is converted into a digital signal by the A / D converter 97 and then sent to the logarithmic converter 98. This logarithmic converter 98 is
It is composed of a look-up table memory, and logarithmically transforms the input signal to transform it into image data proportional to the density value. Before the image pickup of the TV camera 83 is started, the CPU 52
The table data stored in OM89 is written in the logarithmic converter 98.

The saturation correction circuit 99 is for correcting the difference between the spectral sensitivity of the color paper used in the color printer and the spectral sensitivity of the image pickup section of the TV camera 83, and weights the image data of each color 3 The lookup table memories 99a and the adder 99b that adds the outputs of the three lookup table memories 99a and outputs the addition result as red image data. CPU52
Reads each of the three sets of coefficients stored in ROM89 before starting the film test and changes them stepwise to create three types of table data for performing saturation correction of red, 3 lookup table memories
Fill in the corresponding one of 99a.

The color-corrected red image data is sent to one of the image memories 101a and 101b designated by the demultiplexer 100. These image memories 101a and 101b have a memory capacity for one screen (one page) displayed on the color monitor 33, and writing and reading are alternately performed.
Therefore, for example, while the image memory 101a is being controlled by the read controller 86 to read one page of image data, new image data captured by the TV camera 83 is
The other image memory 10 controlled by the light controller 85
Written to 1b. Next, when the reading of the image memory 101b is started, the writing of the other image memory 101b is started. By using the image memory for at least two pages in this way, the film inspection is prevented from being interrupted during the acquisition of the image data.

An interface 102 is provided so that the CPU 52 can read and write image data from the image memories 101a and 101b. The image data read from either one of the image memories 101a and 101b is the multiplexer.
It is sent to the gradation conversion circuit 104 via 103, where negative / positive conversion and gradation conversion are performed. This gradation conversion circuit 10
4 is composed of 16 lookup table memories so as to correspond to a maximum of 16 frames displayed as one screen. A table created for each frame according to the photometry result of the frame and the manual correction amount. Data is written by CPU52. These table data are created by shifting the reference table data of each color stored in the ROM 89 according to the color correction amount.

The image data subjected to gradation conversion for each frame is converted into a serial signal by the parallel / serial converter 105, and then sent to the D / A converter 106. The red signal converted into an analog signal by the D / A converter 106 is sent to the color monitor 33.

FIG. 4 shows the image memory in detail. The image memory 101a is composed of four memory blocks, each memory block has four memory areas, and one frame of image data is stored in each memory area. For example, the memory block in the fourth column has memory areas A1 to A4.
The image data for one column (4 frames) displayed in column A in FIG. 5 is stored. The memory block in the third column is composed of memory areas A5 to A8 and stores the image data of four frames displayed in column B in FIG. Since the image memory 101b has the same configuration, only the reference numeral is given.

FIG. 6 shows a joint of a long film. Two
Book color negative film 110,111 splice tape 1
It is joined at 12. In this way, splice tape 11
Long film 1 by joining many color negative films with 2
3 is created. The splice tape 112 is detected by the splice sensor 72 when the long film 13 is transferred. Since this splice tape 112 is made of a material different from that of the color negative film, for example, a white adhesive tape is used, it can be optically detected by examining its reflectance or transmittance, or its length and width. be able to.

When the splice sensor 72 detects the splice tape, the CPU 52 creates image data of the splice frame, sends it to the image memory currently being written, for example, 101a, and writes it in the memory area corresponding to the display position of the splice frame. Reference numerals 110a and 111a are frames, and reference numeral 113 is a notch.

Next, the operation of the above embodiment will be described with reference to FIGS. After the power is turned on, the alphanumeric key 38 of the keyboard 34 is operated to specify the same print channel as the color printer to be used in order to make the verification conditions of the color film analyzer correspond to the exposure conditions of the color printer. Next, the alphanumeric keys are operated to input the type and size of the film, and then the display mode, for example, "16 frame display" is designated.

After mounting the supply reel 11, the transparent leader portion joined to the tip of the developed color negative film is pulled out, hung on the guide rollers 14 and 15, and then inserted into the feed roller 16. Since the feed roller 16 is driven by the pulse motor 53, the feed roller 16 moves the reader portion toward the photometric position. The transferred tip is caught by feed roller pairs 68, 69 arranged on both sides of the negative mask 54, and further by feed roller pairs 78, 79 arranged on both sides of the imaging position. Since the leader portion that has passed the image pickup position is pulled out from the feed roller 24, it is wound around the guide rollers 25 and 26 and then wound around the outer circumference of the take-up reel 12.

When the leader portion is pulled out from the supply reel 11, the developed color negative film is subsequently pulled out and transferred to the take-up reel 12. If the notch sensor 50 detects the notch 113 during this transfer, the pulse motor 5
The drive pulses of 3 are counted, and the film feed amount from the notch sensor 50 is measured. Then, when the first notch is moved by the distance between the notch sensor 50 and the center of the negative mask 54, the rotation of the pulse motor 53 is stopped. In this state, the top with the first notch is positioned at the photometric position.

The frame positioned at the photometric position is illuminated by the lamp 55, and in this state, the scanner 58 measures each point of the negative image, and the LATD sensors 59 to 61 measure the LATD values of red, green, and blue. To be done. When the photometry is completed, the pulse motor 53 is rotated again to transfer the long film 13, and the second notched frame is positioned at the photometry position to measure the photo. Hereinafter, the third and subsequent frames are also sequentially positioned at the photometry position and photometry is performed.

The notch of the first frame is detected by the notch sensor 71 when the first frame for which photometry has been completed is transported toward the image pickup position. When this notch is detected, the drive pulse of the pulse motor 80 is counted and the film feed amount is measured. Then, when the long film is fed by a constant amount, the rotation of the pulse motor 80 is stopped and the first frame is positioned at the image pickup position. While the first frame is positioned at the image pickup position, it is determined from the photometric results of the LATD sensors 59 to 61 whether it is overexposure or underexposure, and for the overexposure overframe. CPU52 drives pulse motor 77, ND film 76
Is evacuated from the optical path, and the coma is illuminated with strong illumination light from the lamp 75. Conversely, for underexposed frames, ND
The filter 76 is inserted into the optical path to diminish the illumination light.

Before the first frame is positioned at the imaging position, ND
Since the filter 76 is adjusted, the image pickup by the TV camera 83 is started immediately after the positioning is completed. The time-series red signal, green signal, and blue signal output from the TV camera 83 are sent to the image processing unit 83, where A / D conversion, saturation correction, storage, and gradation conversion are performed. That is, as shown in FIG. 3, the red signal is amplified and clamped, and then converted into red image data by the A / D converter 97. The red image data is converted by the logarithmic converter 98 into red image data proportional to the density value, and then sent to the saturation correction circuit 99. The saturation correction circuit 99 multiplies the image data of the three colors by a coefficient and then adds them, and outputs the added value as red image data. Red image data is demultiplexer
It is sent to the image memory designated by 100, for example 101a, and is written in the first memory area A1 of the 16 memory areas designated by the write controller 85.
Similarly, the second and subsequent frames are sequentially positioned at the image pickup positions, picked up by the TV camera 83, and sequentially written in the memory area A2 and thereafter of the image memory 101a.

When the long film 13 is transferred, the splice sensor
72 optically detects the passage of the splice tape 112, outputs a splice detection signal indicating the joint between the color films 110 and 111, and sends it to the CPU 52, as shown in FIG. The CPU 52 writes image data of “zero” as a digital value in the memory area to be written next. For example, the fifth
In the case shown in the figure, the image data of "zero" is written in the memory area A11, whereby the splice frame 46 is displayed as a blank frame which does not emit light. And next 1
The image data of the first frame recorded on the color negative film of the book is written in the memory area A12.

When 16 frames including the splice frame are imaged and the image data is written in the image memory 101a, the image reading for one page is completed. In this case, the demultiplexer
When 100 is switched to the image memory 101b side, reading of the image memory 101a is started. When the image memory 101b enters the writing mode, the image data of a new frame read by the TV camera 83 is sent to the image memory 101b, and the image data is written as described above.

When the image memory 101a enters the read mode, the read controller 86 reads the image data. This image data is sent to the gradation conversion circuit 104 via the multiplexer 103, and negative / positive conversion and gradation conversion are performed. Since a look-up table memory is prepared for each frame in the gradation conversion circuit 104, one corresponding to the frame being read is selected and the image data is converted by the table data stored in this. Here, different table data is written in each lookup table memory for each frame. This table data is
It is created by shifting the reference table data according to the density correction amount obtained by the photometry by the scanner 58 and the color correction amount obtained by the photometry by the LATD sensors 59 to 61.

The gradation-converted image data is converted into a serial signal by the parallel / serial converter 105, converted into an analog signal by the D / A converter 106, and the obtained red signal is sent to the color monitor 33. Similarly, the green signal and the blue signal are also read, and one page including the color image 45 of 16 frames is displayed on the color monitor 33 as shown in FIG.
Note that the color image 45 of each frame is actually slightly separated so as not to stick to the adjacent color image, and a space between them is displayed as a white frame.

The color monitor 33 displays the color images 45 of 16 frames simulating a print photograph, and it is determined whether these densities and colors are appropriate. At the time of this determination, since the splice frame 46 is also displayed, the head of one color negative film can be known. Typically,
It is desirable that the finish be the same for a plurality of frames recorded on one color negative film. Therefore, by displaying the splice frame 46, the range of one color negative film can be known. Therefore, it is possible to determine whether these frames have the same color and density.

For a color image which is recognized to have a poor finish, a frame designation key 40 of the keyboard 34 is operated to designate a frame. When the frame is designated, as shown in FIG. 8, the image data of the designated frame is read from the image memory 101a and written in the work RAM 90 via the interface 102. Of the image data written in the work RAM 90, the image data of a specific area in which the frame designation cursor 47 as shown in FIG. Then, the image data of the frame designation cursor 47 is created.

In general, when the frame designating cursor 47 is fitted and combined and the color is the same as or similar to the surrounding color, it is difficult to identify the frame designating cursor 47. By the way, since the area in which the frame designating cursor 47 is displayed is often the same or similar to the area around it, comparing the color of this area and the color of the frame designating cursor 47 will not be a practical problem. Absent. Therefore, the image data of the frame designation cursor 47 and the work
The original image data stored in the RAM 90 is compared to determine whether the data is the same or similar. If the two image data are the same or similar, a certain value is added to or subtracted from the image data of the frame designating cursor 47 to correct it to a color distinguishable from the original image.

The image data of the frame designating cursor 47 thus created is sent to the image memory 101a via the interface 102, and is temporarily set in the write mode to write the image data in a part of the memory area of the read frame. The image data of this written portion is the gradation conversion circuit.
Since it is converted to negative / positive at 104, the frame designation cursor 47
Will eventually be displayed as the same negative image as the image recorded on the color negative film. If the frame is designated by mistake, the clear key may be operated. When this clear key is operated, the image data stored in the work RAM 90 is written in the original memory area, and the color image before the frame insertion cursor is inserted and combined is displayed on the color monitor 33.

After the frame is designated, the color key 35 or the density key 36 is operated to input the correction amount. When this manual correction amount is input, the table data of the look-up table memory that performs the gradation conversion of the designated frame is updated. Since the image data is converted with this new table data, the color image of the designated frame is displayed with its density or color corrected. If this modification is insufficient, color key 35
Alternatively, the density key 36 may be operated again. If correction is required for another frame, the frame designation key 40 corresponding to this frame is operated. When the frame designation key 40 is operated, the image data of the frame stored in the work RAM 9 is written in the image memory 101a via the interface 102. After this writing, the image data of the newly designated frame is read from the image memory 101a and written in the work RAM 90, and a part of the image data is negative-positive converted as described above. As a result, the frame designation cursor 47 displayed on the color image of the corrected frame is erased, and the frame designation cursor 47 is displayed on the color image of the newly designated frame. The density and color of the newly designated frame can be corrected as described above.

In simultaneous printing, since each frame is printed one by one in the color printer, it is not necessary to specifically specify the number of prints. However, when printing two or more sheets, it is necessary to specify the number of print sheets. Further, in the reprint printing, it is necessary to specify the reprint frame ordered by the customer and the number thereof. To specify the number of prints, the frame specifying key 40 is operated to specify the frame, and then the number of prints is input by the alphanumeric key 38 of the keyboard 34. When this number of prints is input, the CPU 52 reads the image data from the memory area corresponding to the designated frame, for example, A8, and saves it in the work RAM 90. The image data is saved in the work RAM 90 in order to display the original color image on the color monitor 33 when the clear key is operated to erase the display of the number of prints as in the case of the frame designation cursor 47. Is. Work RAM90
After saving the image data in, the CPU 52 creates data of the number of prints and writes this in the memory area A8. Since the data of the number of prints is read together with the image data, it is displayed on the color monitor 33 with the number of individual prints 48 fitted in a part of the color image. In this embodiment, the number of prints is displayed in a state in which a number for light emission is fitted in a square blank which does not emit light.

Further, when printing the same number of sheets for all the frames of one color film, the splice frame 46 at the head of one color film is designated by the frame designation key 40. Next, enter the number of prints and enter the splice
The data of the number of prints is written in the memory area A11 storing the image data of 46. By writing this number of prints, as shown in FIG. 5, the common number of prints 46a is displayed substantially at the center of the splice top 46.

Most of the frames of one color film have the same number of prints, but it is sometimes desired to print some of them with different numbers. In such a case, in addition to specifying the splice frame 46 and inputting the number of common prints for one color film, the frame to be changed may be specified and the number of individual prints may be input. Both the common print number and the individual print number are stored in the RAM 67 and output to the punch tape 30 at the end of the film certification.

For an out-of-focus frame or a frame in which a main image does not exist due to erroneous shooting, the frame is designated with the frame designation key 40, and then the operation key 39 is operated to input that printing is unnecessary. When this print unnecessary is instructed, the image data in the memory area corresponding to this frame, for example, A2
After saving it in M90, take out a part of the image data, convert it to negative / positive, and write it in memory area A2. As a result, as shown in FIG. 5, a print unnecessary mark 49 in which the central portion of the color image is negative / positive inverted is displayed. The print unnecessary work 49 may be displayed in a predetermined color.

When it is recognized that all the frames are finished well, the next page key 41 is operated. When the next page key is operated, the image data of 16 frames stored in the image memory 101b is read out, and as described above, the color monitor 33
Is displayed in. As described above, the film test can be performed on the frame for one page displayed on the color monitor 33. During this film certification, long film 13
The transfer of the data was started, and the 16 frames recorded on this were TV cameras.
The image data captured in sequence at
Written to 1a.

When the film verification is completed for all the frames recorded on the long film 13, the operation key 39 is operated, and the print data stored in the RAM 67 is output to the punch tape 30. That is, after the punch data representing the splice frame 46, common data such as the type and size of the color film, the number of prints for one color film, etc. are recorded by a punch code, after which the exposure correction data of the frame, the number of prints of the frame, Individual data such as print unnecessary is sequentially recorded for each frame. As described above, since the data for the number of prints is recorded on the punch tape 30 for one color film and for each frame, the print number may be specified depending on the frame. However, this duplication designation can be solved by setting in the printer a control program that gives priority to the number of individual prints for each frame. In addition,
The exposure correction data is the sum of the correction amount automatically calculated by the scanner 58 and the manual correction amount keyed.

When printing a photo, set the punch tape 30 in the printer and the common data will be read from the punch tape 30,
When printing each frame sequentially, the individual data of the frame to be printed is read, and the operation of the printer is controlled according to these print data. In addition,
Since the printer is provided with red, green, and blue LATD sensors, the LATD value of each color is measured by these sensors. The exposure amount of each color is measured from these LATD values,
By adding the exposure correction data read from the punch tape 30, the exposure amount for photo printing is adjusted for each color.

When displaying 12 frames, the keyboard 34 is operated to specify this display mode. After the mode is designated, the magnetic floppy 29 is set, the four reference images written in the magnetic floppy 29 are read out, and the reference images are written in the work RAM 90. After this writing, the image data of the reference image is read from the work RAM 90 and written in the memory areas A13 to A16 and B13 to B16 corresponding to the D column on the color monitor 33, respectively. Therefore, the areas in which the image data of the frames captured by the TV camera 83 are written are the memory areas A1 to A12, B1 to
It becomes B12, 12 pieces are read by the TV camera 83,
It is displayed in the columns A to C of the color monitor 33.

At the time of film inspection, the finish can be checked by referring to the four reference images displayed in column D. When a frame is designated with the frame designation key 40 because manual correction is required, if one column including this frame is shifted to the position of column C, it is displayed next to the reference image. It becomes easy to compare.

Even in the case of single frame display, the keyboard 34 is first operated to specify the display mode. In this one-frame display, image pickup and display are performed for each frame, and a color image of one frame written in the image memory in the read mode, for example, 101a, has a large size in the area of four frames in the center of the screen. Is displayed. For this size enlargement, in addition to the electronic enlargement of magnification by interpolation processing, the sampling cycle of the A / D converter 97 may be shortened to create image data for four frames. For example, in the case of displaying 16 frames, the frame designation key for color correction
When you specify a frame with 40, it is convenient to enlarge this frame.

Next, the gradation conversion will be described with reference to FIG.
The frame positioned at the photometric position is scanned by the scanner 63, LATD
The light is measured by the photometric sensors 59-61. These sensors 59 to 61 measure a red LATD value, a green LATD value, and a blue LATD value, respectively. The gray average density value is calculated by arithmetically averaging these LATD values. Comparing the obtained gray average density value with the gray average density of super exposure overcoma,
If it exceeds 0, it is determined that the measured frame is overexposed. Further, by comparing with the gray average density of the super-exposure under-coma, it is determined that the measured frame is a super-exposure under-coma when the density is less than this. If it is determined that the photometered frame is overexposure overframe, select a predetermined ND filter value, and if it is determined that it is overexposure underframe, the ND filter determined for this Select a value. For these over-exposure or under-frames, the ND filter value is taken into consideration, and the color correction amounts for cyan, magenta, and yellow are calculated using the LATD value. In addition, for items other than overexposure or underframe, the color correction amount is calculated from the LATD value.

Since the scanner 58 measures the density of each point of the frame, it takes out the density of the measurement points included in the area designated in advance, and calculates the density value of the area from the arithmetic mean thereof. In this way, the density values of a plurality of areas are obtained, pattern classification such as a forward light scene and a backlight scene is performed, and the density correction amount is calculated from an arithmetic expression prepared in advance for each pattern.

The color correction amount measured using the LATD sensors 59 to 61 and the density correction amount measured using the scanner 58 are added for each color and then written in the RAM 67. Here, since the density correction is to correct the same amount for cyan, magenta, and yellow, the density correction amount is converted into a color correction amount and then added for each color. From the obtained correction amount of each color, the gradation conversion amount which is the shift amount of the reference table data is calculated for each color. These calculations are performed while the transfer of the long film 13 is started after the photometry is finished and the next frame is positioned at the photometry position.

Since the ROM 89 stores reference table data for each color (different for each color), the reference table data is read while being shifted according to the gradation conversion amount. It is sent to the conversion circuit 104 and written in the area corresponding to the frame to be subjected to gradation conversion. When the keyboard 34 is operated for manual correction, the manually input color correction amount and density correction amount (converted to color correction amount) are added to the color correction amount read from the RAM 67, and the added value is calculated. The gradation conversion amount is calculated from the reference table data, the reference table data is shifted again, and the shifted table data is written in the gradation conversion circuit 104.

In the above embodiment, the gradation conversion circuit 104 performs color and density correction. However, a dimming filter for cyan, magenta, and yellow is arranged between the lamp 75 and the mixing box 74, and the light path to these optical paths is changed. Color and density correction may be performed by adjusting the amount of insertion. Further, it is also possible to make a rough correction of color and density with this light control filter and to make a fine correction with the gradation conversion circuit 104. Further, the splice frame can be luminescently displayed at a desired brightness or can be displayed in a desired color by arbitrarily determining the value of the image data. The present invention can also be applied to a color reversal film.

〔The invention's effect〕

As described above in detail, according to the present invention, if the print unnecessary is designated, the print unnecessary mark is displayed on a part of the color image of the frame, so that it can be easily known whether or not the frame is the print unnecessary. be able to. Further, as the print-unnecessary mark, a negative / positive inversion of a color image is used, so that the print-unnecessary mark is conspicuous and the image data can be easily created.

[Brief description of drawings]

FIG. 1 is a schematic view showing a color film analyzer of the present invention. FIG. 2 is an external view of the color film analyzer of the present invention. FIG. 3 is a block diagram showing an example of the image processing unit. FIG. 4 is a block diagram showing the image memory in detail. FIG. 5 is an explanatory diagram showing a display example of the color monitor. FIG. 6 is a plan view showing a joint of a long film. FIG. 7 is a flow chart showing the procedure of film inspection. FIG. 8 is a flowchart showing the display procedure of the frame designation cursor. FIG. 9 is a flowchart showing the procedure of gradation conversion. 13 …… Long film 17 …… Photometric hood 21 …… Imaging hood 29 …… Magnetic floppy 30 …… Punch tape 33 …… Color monitor 34 …… Keyboard 35 …… Color key 36 …… Density key 40 …… Frame designation key 41 …… Next page key 45 …… Color image 46 …… Splice frame 47 …… Frame designation cursor 46a, 48, …… Number of prints 49 …… No print mark 58 …… Scanner 59 …… Red sensor 60 …… Green sensor 61 …… Blue sensor 101a, 101b …… Image memory A1 to A16, B1 to B16 …… Memory area.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location H04N 9/79 9365-5H G06F 15/62 310A

Claims (2)

(57) [Claims] 1. A video type color film analyzer which images a plurality of frames recorded on a color film, arranges color images of these frames in a matrix and displays them on an image display means, and specifies a frame not requiring printing. And a means for displaying a mark indicating that printing is unnecessary on a part of the color image of the designated frame, the video type color film analyzer. 2. The non-printing mark is obtained by inverting the color image of a portion where the mark is fitted and composited in a negative / positive manner.
The video-type color film analyzer described in the item.