CN106162110B - Image color processing method, device and terminal device - Google Patents
Image color processing method, device and terminal device Download PDFInfo
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- CN106162110B CN106162110B CN201610615509.6A CN201610615509A CN106162110B CN 106162110 B CN106162110 B CN 106162110B CN 201610615509 A CN201610615509 A CN 201610615509A CN 106162110 B CN106162110 B CN 106162110B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
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Abstract
The application proposes a kind of image color processing method, device and terminal device, and this method is used in the terminal device with shoot function, and filter unit includes the first color filter disc, the second color filter disc, the 3rd color filter disc and the white light transmittant area laterally disposed；The first two field picture is shot to preview screen in initial position；Triggering MEMS moves imaging sensor from initial position to preset direction one pixel to first position, and the second two field picture is shot in first position；Triggering MEMS moves imaging sensor from first position to preset direction one pixel to the second place, and the 3rd two field picture is shot in the second place；Imaging sensor is moved a pixel to the 3rd position from the second place to preset direction by triggering MEMS, and the 4th two field picture is shot in the 3rd position；5th two field picture is synthesized according to the color component of each location of pixels in the first two field picture, the second two field picture, the 3rd two field picture and the 4th two field picture.Thus, the degree of accuracy of image color reduction is improved.
Description
Technical field
The application is related to technical field of image processing, more particularly to a kind of image color processing method, device and terminal are set
It is standby.
Background technology
The various terminal devices with shoot function are widely applied in daily life, terminal device needs pair in shooting
Picture to be obtained carries out image color reduction treatment, to obtain the preferable shooting image of quality as far as possible.
Because the RGB of image refers in each pixel value for forming a width coloured image, there are tri- primary colours of R, G, B
Component, it is colored that each primary color component directly determines that the primary intensities of display device produce.But image sensing of the prior art
The data format that device comes out is bayer data formats, and this each pixel of form only has one in three Color Channels,
Therefore, each pixel only has a real color component, and the color component of other missings is needed by other processing modes
Estimation is obtained, and the color component of estimation and real color component are carried out into synthesis processing.
Therefore, current terminal device causes acquired image color and real picture color in shooting picture
Quite different, the color rendition degree to image is bad.
The content of the invention
The application is intended to one of technical problem at least solving in correlation technique to a certain extent.
Therefore, first purpose of the application is to propose a kind of image color processing method, the method achieve can
More color components in image pixel are obtained, improve the reduction effect and picture quality of image realistic colour.
Second purpose of the application is to propose a kind of image color processing unit.
The 3rd purpose of the application is to propose a kind of terminal device.
For the above-mentioned purpose, the application first aspect embodiment proposes a kind of image color processing method, methods described
Apply in terminal device, the imaging modules of the terminal device include：MEMS and imaging sensor, wherein, it is described
MEMS control described image sensor movement, described image sensor includes photosensitive pixel array, and is arranged on institute
The optical filter on photosensitive pixel array is stated, the optical filter includes multiple filter units, and each filter unit is what a line four arranged
Matrix unit, the matrix unit include：A first color filter disc laterally disposing, a second color filter disc, one
Three color filter discs and a white light transmittant area；
It the described method comprises the following steps：
The first two field picture is shot to preview screen in initial position；
Trigger the MEMS described image sensor is moved from initial position to preset direction a pixel away from
The second two field picture is shot to first position, and in the first position；
Trigger the MEMS and described image sensor is moved into a picture from the first position to preset direction
Element distance arrives the second place, and shoots the 3rd two field picture in the second place；
Trigger the MEMS and described image sensor is moved into a picture from the second place to preset direction
Plain distance shoots the 4th two field picture to the 3rd position, and in the 3rd position；
According in first two field picture, second two field picture, the 3rd two field picture and the 4th two field picture
Color component corresponding to each location of pixels in the preview screen obtained by the optical filter, carry out synthesis processing generation institute
State the 5th two field picture of preview screen.
The image color processing method of the embodiment of the present application, accurately imaging sensor is controlled to move by using MEMS
It is dynamic, and optical filter and photosensitive pixel array are provided with imaging sensor, optical filter includes multiple filter units, multiple optical filterings
Blade unit forms the matrix structure of the row of a line four, and includes the first color filter disc, the second color filter disc, the 3rd in filter unit
Color filter disc and white light transmittant area, the first two field picture is shot in initial position first, the microcomputer with precise displacement control function
Electric system control imaging sensor obtains the second two field picture after moving a pixel distance along preset direction, afterwards MEMS
Control imaging sensor continues to move a pixel distance along preset direction, the 3rd two field picture is obtained, then again to preset direction
A mobile pixel distance, obtains the 4th two field picture, to cause terminal device to obtain the first two field picture, the second two field picture, the 3rd
Two field picture and the 4th two field picture, and according to the color component of each location of pixels of each two field picture by the first two field picture, the second frame figure
Picture, the 3rd two field picture and the 4th two field picture carry out being synthetically formed the 5th two field picture, i.e. final image, and thereby, it is possible to obtain image
More color components in pixel, improve the reduction effect and picture quality of image realistic colour, and white light transmittant area
The brightness of whole image can be improved by setting, and improve the display effect of image.
For the above-mentioned purpose, the application second aspect embodiment proposes a kind of image color processing unit, and the device should
In the terminal device with shoot function,
Imaging modules in the terminal device include：MEMS and imaging sensor, wherein,
The MEMS control described image sensor movement, described image sensor include photosensitive pixel array,
And the optical filter on the photosensitive pixel array is arranged on, the optical filter includes multiple filter units, each filter unit
The matrix unit arranged for a line four, the matrix unit include：A first color filter disc laterally disposing, second color
Filter disc, a 3rd color filter disc and the 4th optical filter；
Described device includes：
First processing module, for shooting the first two field picture to preview screen in initial position；
Second processing module, for triggering the MEMS by described image sensor from the initial position to pre-
Set direction moves a pixel distance to first position, and shoots the second two field picture in the first position；
3rd processing module, for triggering the MEMS by described image sensor from the first position to institute
State preset direction and move a pixel distance to the second place, and the 3rd two field picture is shot in the second place；
Fourth processing module, for triggering the MEMS by described image sensor from the second place to pre-
Set direction moves a pixel distance to the 3rd position, and shoots the 4th two field picture in the 3rd position；
Synthesis module, for according to first two field picture, second two field picture, the 3rd two field picture and described
Color component corresponding to each location of pixels, is closed in the preview screen obtained in 4th two field picture by the optical filter
The 5th two field picture of the preview screen is generated into processing.
The image color processing unit of the embodiment of the present application, the image color processing unit are applied in terminal device, eventually
Imaging modules in end equipment include MEMS and imaging sensor, accurately control image to pass by using MEMS
Sensor is moved, and optical filter and photosensitive pixel array are provided with imaging sensor, and optical filter includes multiple filter units, more
Individual filter unit forms the matrix structure of the row of a line four, and includes the first color filter disc, the filter of the second color in filter unit
Piece, the 3rd color filter disc and white light transmittant area, the first two field picture is shot in initial position first, there is precise displacement control function
MEMS control imaging sensor move a pixel distance along preset direction after obtain the second two field picture, microcomputer afterwards
Electric system control imaging sensor continues to move a pixel distance along preset direction, the 3rd two field picture is obtained, then again to pre-
Set direction moves a pixel distance, obtains the 4th two field picture, to cause terminal device to obtain the first two field picture, the second frame figure
As, the 3rd two field picture and the 4th two field picture, and according to the color component of each location of pixels of each two field picture by the first two field picture, the
Two two field pictures, the 3rd two field picture and the 4th two field picture carry out being synthetically formed the 5th two field picture, i.e. final image, and thereby, it is possible to obtain
More color components in image pixel are taken, improve the reduction effect and picture quality of image realistic colour, and white light is saturating
The brightness of whole image can be improved by penetrating the setting in area, improve the display effect of image.
For the above-mentioned purpose, the application third aspect embodiment proposes a kind of terminal device, including：Housing and it is arranged on
Imaging modules in the housing, wherein, the imaging modules include：MEMS, imaging sensor, camera lens, memory
And processor,
The MEMS control described image sensor movement,
Described image sensor includes photosensitive pixel array, and the optical filter being arranged on the photosensitive pixel array,
The optical filter includes multiple filter units, and each filter unit is the matrix unit that a line four arranges, and the matrix unit includes：
A first color filter disc, a second color filter disc, a 3rd color filter disc and the white light transmittant area laterally disposed；
The memory is used to store executable program code；
The executable program code that the processor is stored by reading in memory is to perform：
The first two field picture is shot to preview screen in initial position；
Trigger the MEMS and described image sensor is moved into a picture from the initial position to preset direction
Element distance arrives first position, and shoots the second two field picture in the first position；
Trigger the MEMS and described image sensor is moved one from the first position to the preset direction
Individual pixel distance shoots the 3rd two field picture to the second place, and in the second place；
Trigger the MEMS and described image sensor is moved into a picture from the second place to preset direction
Plain distance shoots the 4th two field picture to the 3rd position, and in the 3rd position；
Led to according to first two field picture, second two field picture, the 3rd two field picture and the 4th two field picture
Color component corresponding to each location of pixels in the preview screen that the optical filter obtains is crossed, is carried out described in synthesis processing generation
5th two field picture of preview screen.
The terminal device of the embodiment of the present application, the MEMS control imaging sensor movement in the terminal device, and
Optical filter and photosensitive pixel array are provided with imaging sensor, optical filter includes multiple filter units, multiple optical filter lists
Member forms the matrix structure that a line four arranges, and includes the first color filter disc, the second color filter disc, the 3rd color in filter unit
Filter disc and white light transmittant area, the first two field picture is shot in initial position first, the micro-electro-mechanical systems with precise displacement control function
System control imaging sensor obtains the second two field picture after moving a pixel distance along preset direction, and MEMS controls afterwards
Imaging sensor continues to move a pixel distance along preset direction, obtains the 3rd two field picture, is then moved again to preset direction
One pixel distance, the 4th two field picture is obtained, to cause terminal device to obtain the first two field picture, the second two field picture, the 3rd frame figure
Picture and the 4th two field picture, and according to the color component of each location of pixels of each two field picture by the first two field picture, the second two field picture,
Three two field pictures and the 4th two field picture carry out being synthetically formed the 5th two field picture, i.e. final image, and thereby, it is possible to obtain in image pixel
More color components, improve the reduction effect and picture quality of image realistic colour, and the setting energy in white light transmittant area
The brightness of whole image is enough improved, improves the display effect of image.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the knot of optical filter in terminal device applied in the image color processing method of the application one embodiment
Structure schematic diagram；
Fig. 2 is the MEMS and imaging sensor involved by the image color processing method of the application one embodiment
Structural representation；
Fig. 3 is the flow chart of the image color processing method of the application one embodiment；
Shown in Fig. 4 is the color component schematic diagram obtained in the first two field picture by optical filter；
Shown in Fig. 5 is the color component schematic diagram obtained in the second two field picture by optical filter；
Shown in Fig. 6 is the color component schematic diagram obtained in the 3rd two field picture by optical filter；
It is the color component schematic diagram obtained in the 4th two field picture by optical filter shown in Fig. 7；
Fig. 8 is the flow chart of the image color processing method of the application another embodiment；
Fig. 9 is the structural representation of the image color processing unit of the application one embodiment；
Figure 10 is the structural representation of the image color processing unit of the application another embodiment；
Figure 11 is the structural representation of the terminal device of the application one embodiment.
Embodiment
Embodiments herein is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the application, and it is not intended that limitation to the application.
Below with reference to the accompanying drawings the image color processing method, device and terminal device of the embodiment of the present application are described.
Specifically, image color processing method provided by the invention is applied in the terminal device with shoot function, is needed
It is noted that the type of terminal device is a lot, such as including：Mobile phone, tablet personal computer, wearable device etc..
Terminal device with shoot function includes imaging modules.Wherein, the imaging sensor in imaging modules includes sense
Light image pixel array, and the optical filter being arranged on photosensitive pixel array.Light sensitivity principles are the photosensitive unit of photosensitive pixel array
Electric signal is produced by receiving the optical signal filtered from optical filter, and the output of color is obtained by exposure.
It should be noted that the color point of the corresponding filtering of the location of pixels of each shooting image of the structures shape of optical filter
The distribution situation of amount, it can be needed to select different filter sheet structures to carry out image taking according to practical application.The present embodiment carries
The filter sheet structure of the involved application of the image color processing method of confession is as shown in figure 1, specific as follows：
Fig. 1 is the knot of optical filter in terminal device applied in the image color processing method of the application one embodiment
Structure schematic diagram；Fig. 1 is refer to, optical filter 10 includes multiple filter units 11, and each filter unit 11 is the matrix that a line four arranges
Unit, matrix unit include：111, the second color filter discs 112, one the 3rd of a first color filter disc laterally disposed
Color filter disc 113 and a white light transmittant area 114.
, wherein it is desired to it is noted that the first color filter disc, the second color filter disc, the 3rd color filter disc and white light transmittant
The position in area can be disposed according to using needs.For example, the face in each filter unit in optical filter as shown in Figure 1
Color filter disc and white light transmittant area are deployed as：Arrangement mode using 1 red 1 green 1 blue 1 white light transmittant area is transversely arranged into 1x4's
Matrix structure, the first color filter disc 111 are red (R) optical filter, and the second color filter disc 112 is green (G) optical filter, Yi Ji
Three color filter discs 113 are blue (B), and white light transmittant area 114 is the region passed through for white light, and optical filter is not covered on the region.
It should be noted that the structure deployment of each filter unit of the present embodiment optical filter can be the same or different,
In the present embodiment, it is preferred that the structure deployment of each filter unit is identical.
Because each color filter disc can only obtain a color component, it is required to pass through for other two color components
Series of algorithms is estimated to obtain, such as the first color filter disc 111 in Fig. 1 is image pixel position corresponding to red (R) optical filter
Put, can only obtain corresponding red component, it is necessary to estimate corresponding with the location of pixels blue component and green component；Or
Such as the second color filter disc 112 in Fig. 1 is image pixel positions corresponding to green (G) optical filter, be can only obtain corresponding green
Colouring component is, it is necessary to estimate corresponding with the location of pixels red component and blue component.Therefore, the filter used based on the present embodiment
The image of mating plate shooting, it is therefore, whole because each location of pixels in whole image is required for estimation two color components of reduction
The color rendition degree of individual image is not high, influences the display effect of whole image.
In order to solve the above problems, image color processing method provided by the invention introduces MEMS, according to optical filtering
The distributed architecture of color filter disc in unit, determines default displacement, triggering MEMS according to default movement away from
Corresponding position shooting reference picture is moved to from control imaging sensor, so as to be obtained and same pixel position from reference picture
Put more true colors components to be synthesized, improve the reduction degree of image color.Wherein, MEMS (MEMS, Micro-
Electro-Mechanical System), it can also be called microelectromechanical systems, micro-system, micromechanics etc., be in microelectronics
Grow up on the basis of technology (semiconductor fabrication), merged photoetching, burn into film, LIGA, silicon micromachined, non-silicon
The high-tech electronic mechanical devices of the fabrication techniques such as micro Process and precision optical machinery processing.Its opereating specification is in micrometer range, energy
It is enough to realize accurate Bit andits control, there is very high precision, can reach pixel scale, (i.e. MEMS drives imaging sensor every time
Mobile distance can be suitable with the size of image sensor pixel).
Fig. 2 is the MEMS and imaging sensor involved by the image color processing method of the application one embodiment
Structural representation, below in conjunction with the accompanying drawings 2 pairs of MEMSs (MEMS) drive the principle of imaging sensors motion to illustrate,
Specifically, MEMS (MEMS) includes fixed electrode 21, float electrode 22 and can deformation connector 23.Float electrode 22 with
Fixed electrode 21 coordinates.Connector 23 is fixedly connected with fixed electrode 21 and float electrode 22.Fixed electrode 21 and float electrode 22
For producing electrostatic force in the presence of driving voltage.Connector 23 is used to move along float electrode 22 in the presence of electrostatic force
Direction deformation to allow float electrode 22 to move so as to drive imaging sensor 30 to move.
, wherein it is desired to explanation, according to the difference of concrete application demand, sets corresponding MEMS control image
Sensor moves to different directions, such as：Can be micro electronmechanical in horizontally and vertically setting respectively for imaging sensor
System, so as to MEMS can drive imaging sensor carry out level to the left or move right, it is horizontal upwardly or downwardly
It is mobile etc..Wherein, step-length that above-mentioned MEMS control imaging sensor moves every time etc., can be by system according to many experiments
Data are demarcated, and also can voluntarily be set according to demand by user.
Fig. 3 is the flow chart of the image color processing method of the application one embodiment；As shown in figure 3, it can specifically wrap
Include following steps：
S101, the first two field picture is shot to preview screen in initial position.
S102, trigger the MEMS and described image sensor is moved into a picture from initial position to preset direction
Element distance arrives first position, and shoots the second two field picture in first position.
S103, trigger the MEMS and described image sensor is moved one from first position to the preset direction
Individual pixel distance is to the second place, and the second place shoots the 3rd two field picture.
S104, trigger the MEMS and described image sensor is moved one from the second place to preset direction
Individual pixel distance shoots the 4th two field picture to the 3rd position, and in the 3rd position；
Specifically, in shooting, terminal device is directed at shooting object and focused by user, complete to defocused shooting with it is pre-
Look at the first two field picture corresponding to picture.
Shown in Fig. 4 is the color component schematic diagram obtained in the first two field picture by optical filter, such as：
Location of pixels a corresponding to Red lightscreening plate (R) 111 obtain for red component, the correspondence of green color filter (G) 112
Location of pixels b obtain for green component, location of pixels c corresponding to blue color filter (B) 113 obtain for blue component,
White light transmittant area (W) 114 is directed through for white light.
Due to the present invention relates to imaging sensor in each filter unit distribution of color structure be what a line four arranged
Matrix unit, matrix unit include：111, the second color filter discs 112, one of a first color filter disc laterally disposed
3rd color filter disc 113 and a white light transmittant area 114.As can be seen here, for same location of pixels, if one want to different
The optical filter of color obtains three color components respectively, can on the basis of the first color component obtained in the first two field picture
Imaging sensor is controlled to move from initial position to preset direction a pixel distance to first position to trigger MEMS,
And the second two field picture is shot in first position, the second color component corresponding with the location of pixels is obtained in the second two field picture,
Then triggering MEMS again controls imaging sensor to continue to move a pixel distance to preset direction from first position
The 3rd two field picture is shot to the second place, and in the second place, corresponding with the location of pixels the is obtained in the 3rd two field picture
Three color components.
, wherein it is desired to explanation, above-mentioned preset direction can need to be configured according to practical application.Such as：If
The preset direction is to the right, then to trigger the MEMS and described image sensor moves right from the initial position
One pixel distance shoots the second two field picture to first position, and in the first position；If the preset direction is to the left,
Then trigger the MEMS and described image sensor is moved to the left a pixel distance to first from the initial position
Position, and shoot the second two field picture in the first position.Wherein, left and right direction is the filter unit being arranged in matrix
Column direction.
In order to more clearly illustrate above-mentioned implementation process, it is illustrated below with reference to shown in Fig. 4 to Fig. 7.
Shown in Fig. 5 is the color component schematic diagram obtained in the second two field picture by optical filter；
Shown in Fig. 6 is the color component schematic diagram obtained in the 3rd two field picture by optical filter；
It is the color component schematic diagram obtained in the 4th two field picture by optical filter shown in Fig. 7；
As Figure 4-Figure 7, with selected reference pixel position c (certain point of the picture of corresponding external scene) in scheming,
By taking location of pixels c points as an example, in initial position, i.e., when MEMS does not drive the imaging sensor to move, the pixel position
It is blue (B) color component to put by the color component acquired in optical filter；MEMS drives imaging sensor to default
Such as Fig. 5 first positions state, the location of pixels, which are in, after the mobile pixel distance in direction (exemplified by moving right) passes through filter
Color component acquired in mating plate is green (G) color component；Afterwards, based on the first position state being in shown in Fig. 5, microcomputer
Electric system drives imaging sensor to be in as shown in Figure 6 after moving a pixel distance to preset direction (continuing to move right) again
Second place state, the location of pixels are red (R) color component by the color component acquired in optical filter, work as micro-electro-mechanical systems
After system drives imaging sensor to move a pixel distance to preset direction (continuing to move right) again, in shape as shown in Figure 7
State, now the location of pixels color component can not be obtained by optical filter.But by above-mentioned process, at c, location of pixels has been
Through three primary colours component can be obtained respectively.
It is, of course, understood that the imaging sensor moved using this kind of mode, might not in each location of pixels
Three primary colours component can be accessed, for example, by Fig. 4 into Fig. 7 at b exemplified by location of pixels, before imaging sensor movement, such as
Shown in Fig. 4, location of pixels b is green (G) color component by the color component acquired in optical filter, and works as MEMS
After driving imaging sensor to move pixel distance a to first position to preset direction, as shown in figure 5, the location of pixels passes through
Color component acquired in optical filter is red (R) color component, when MEMS drives imaging sensor to second again
A pixel distance is moved to the second place in direction, as shown in fig. 6, the color point that the location of pixels can not be obtained by optical filter
Amount, when MEMS drives imaging sensor to move pixel distance to three position to second direction again, such as Fig. 7
Shown, the location of pixels still can not obtain color component by optical filter.Therefore, the location of pixels can only obtain two face
Colouring component (green and red), and still lack blue color component.
In addition, the location of pixels in some edges corresponding to optical filter, even in imaging sensor in the manner described above
It is mobile twice after, be also only capable of obtaining a color component, for example, by Fig. 4 into Fig. 7 at a exemplified by location of pixels, in image sensing
Before device movement, as shown in figure 4, the location of pixels is red (R) color component by the color component acquired in optical filter, and
After MEMS drives imaging sensor to move pixel distance a to first position to preset direction, as shown in figure 5, should
Location of pixels can not obtain color component by optical filter, when MEMS drives imaging sensor to be moved to preset direction again
After moving pixel distance a to second place, as shown in fig. 6, the location of pixels still can not obtain color point by optical filter
Amount, after MEMS drives imaging sensor to move pixel distance to three position to preset direction again, such as Fig. 7
Shown, the location of pixels still can not obtain color component by optical filter.Therefore, the location of pixels can only obtain a face
Colouring component (red), and still lack green and blue color component.
And for white light transmittant area, with Fig. 4 into Fig. 7 location of pixels at d, before imaging sensor movement, such as Fig. 4 institutes
Showing, location of pixels d can not obtain any color component by optical filter, and when MEMS drives imaging sensor to pre-
After set direction moves pixel distance a to first position, as shown in figure 5, location of pixels d passes through the face acquired in optical filter
Colouring component is blue (B) color component, when MEMS drives imaging sensor to move a pixel to second direction again
Distance is to the second place, as shown in fig. 6, location of pixels d is green (G) color point by the color component acquired in optical filter
Amount, when MEMS drives imaging sensor to move pixel distance to three position to second direction again, such as Fig. 7
Shown, location of pixels d is red (R) color component by the color component acquired in optical filter.Therefore, location of pixels d
Three primary colours component can be obtained.
S105, according to first two field picture, second two field picture, the 3rd two field picture and the 4th frame figure
Color component corresponding to each location of pixels in the preview screen obtained as in by the optical filter, carry out synthesis processing generation institute
State the 5th two field picture of preview screen.
Specifically, it is some by the way that color component corresponding to each pixel position in above-mentioned preview screen is synthesized
The color component obtained at location of pixels has three, such as location of pixels can obtain three at the c shown in Fig. 4 to Fig. 7 and at d
Color component；And the color component obtained at some location of pixels then only has the picture at two, such as b shown in Fig. 4 to Fig. 7
Plain position is only capable of obtaining two color components；The color component even obtained at some location of pixels then only one, such as
The location of pixels at a shown in Fig. 4 to Fig. 7 is only capable of obtaining a color component.
No matter each pixel position can be obtained the quantity of color component to be several, will be obtained at each location of pixels
The color component obtained corresponds to carry out synthesis processing respectively, and for color component lacking in each pixel position, some positions
Place may lack a color component, and some opening positions may lack two color components, and for color lacking in obtaining
Component, it can also specifically pass through color component lacking in evaluation method of the prior art acquisition.
The 5th two field picture synthesized using aforesaid way, compared to above-mentioned prior art, in some pixel positions not
Need the estimation of progress color component, it is only necessary to carry out the estimation of remaining color component in partial pixel opening position, thus, greatly
Ground reduces the quantity for the location of pixels that needs are estimated, alleviates workload, further, it is possible to reduce by estimating institute as far as possible
The inaccuracy brought, improve the degree of accuracy and the authenticity of image color reduction.
The image color restoring method that the present embodiment provides, accurately controls imaging sensor to move by using MEMS
It is dynamic, and optical filter and photosensitive pixel array are provided with imaging sensor, optical filter includes multiple filter units, multiple optical filterings
Blade unit forms the matrix structure of the row of a line four, and includes the first color filter disc, the second color filter disc, the 3rd in filter unit
Color filter disc and white light transmittant area, the first two field picture is shot in initial position first, the microcomputer with precise displacement control function
Electric system control imaging sensor obtains the second two field picture after moving a pixel distance along preset direction, afterwards MEMS
Control imaging sensor continues to move a pixel distance along preset direction, the 3rd two field picture is obtained, then again to preset direction
A mobile pixel distance, obtains the 4th two field picture, to cause terminal device to obtain the first two field picture, the second two field picture, the 3rd
Two field picture and the 4th two field picture, and according to the color component of each location of pixels of each two field picture by the first two field picture, the second frame figure
Picture, the 3rd two field picture and the 4th two field picture carry out being synthetically formed the 5th two field picture, i.e. final image, and thereby, it is possible to obtain image
More color components in pixel, improve the reduction effect and picture quality of image realistic colour, and white light transmittant area
The brightness of whole image can be improved by setting, and improve the display effect of image.
For above-described embodiment step 105, due to lacking the position of color component in each location of pixels at marginal position,
Therefore, will can be cut off positioned at the image of the location of pixels of edge, i.e. only pair there is the pixel position of three color components simultaneously
Each color component at the place of putting carries out being synthetically formed the 4th two field picture.Specifically, step 105 includes：According to first two field picture,
The preview screen obtained in second two field picture, the 3rd two field picture and the 4th two field picture by the optical filter
In color component corresponding to each location of pixels, obtain has the first color component, the second color component and the 3rd color point simultaneously
First location of pixels of amount；Each color component of all first location of pixels is subjected to synthesis processing the 4th two field picture of generation.
In addition, for step 105 in above-described embodiment, can also be needed to use different processing methods according to practical application
The color component lacked in location of pixels is estimated, such as：Color look-up table, interpolation method etc., in order to more clearly say
The bright estimation process to lacking color component, with reference to embodiment illustrated in fig. 7, it is described as follows by interpolating estimation method：
Fig. 8 is the flow chart of the image color processing method of the application another embodiment；As shown in figure 8, based on above-mentioned
Embodiment, step 105 specifically include：
S1051, according to first two field picture, second two field picture, the 3rd two field picture and the 4th frame
Color component corresponding to each location of pixels in the preview screen obtained in image by the optical filter, obtain has first simultaneously
First location of pixels of color component, the second color component and the 3rd color component, and asynchronously there is the first color point
Second location of pixels of amount, the second color component and the 3rd color component.
Specifically, understand that some location of pixels can obtain three based on the description in above-described embodiment for Fig. 4 to Fig. 7
Individual color component, and some location of pixels can only then obtain two color components or a color component.According to whether simultaneously
The first color component, the second color component and the 3rd color component are obtained, each location of pixels is made a distinction as the first picture
Plain position and the second location of pixels, in order to handle in different ways two kinds of different location of pixels.
S1052, the color component lacked by all second location of pixels of default interpolation algorithm acquisition；
S1053, according to each color component of all second location of pixels after interpolation processing, and all first location of pixels
Each color component carry out synthesis processing generation the 4th two field picture.
The color component that the second pixel position for lacking color component correspondingly lacks can be by default interpolation
Algorithm obtains, and specifically, default interpolation algorithm can be nearest picture element interpolation algorithm (Nearest Neighbour
Interpolation), bilinear interpolation algorithm, bicubic interpolation algorithm, and fractal algorithm etc..In this way, each location of pixels
Place can obtain three color components, so by the first color component of the first location of pixels with three color components,
Second color component and the 3rd color component are directly synthesized, and the pixel position of remaining color component will be obtained by interpolation algorithm
Each color component synthesis at place is put, so, it is possible to obtain the 5th higher two field picture of a color rendition degree i.e., final figure
Picture.
In addition, in the present embodiment, because the quantity that each pixel position can be obtained color component may be one
It is individual or two or three, the location of pixels for three color components can not be obtained, then if second location of pixels has
One color component, then two other color component lacked by all second location of pixels of default interpolation algorithm acquisition；
Or if second location of pixels has two color components, all second pictures are obtained by default interpolation algorithm
Another color component that plain position lacks.
The image color restoring method that the present embodiment provides, moved by using MEMS control imaging sensor,
And photosensitive pixel array and optical filter are provided with imaging sensor, optical filter includes multiple filter units, and optical filter list
Include a first color filter disc, a second color filter disc and two the 3rd color filter discs, filter unit in member and be arranged into one
The matrix structure that row four arranges, and include the first color filter disc, the second color filter disc, the 3rd color filter disc and white in filter unit
Transmitance region, the first two field picture is shot in initial position first, the MEMS control figure with precise displacement control function
The second two field picture is obtained after moving a pixel distance along preset direction as sensor, the image sensing of MEMS control afterwards
Device continues to move a pixel distance along preset direction, obtains the 3rd two field picture, then moves a pixel to preset direction again
Distance, the 4th two field picture is obtained, to cause terminal device to obtain the first two field picture, the second two field picture, the 3rd two field picture and the 4th
Two field picture, and according to the color component of each location of pixels of each two field picture by the first two field picture, the second two field picture, the 3rd two field picture
Carry out being synthetically formed the 5th two field picture, i.e. final image with the 4th two field picture, thereby, it is possible to obtain more face in image pixel
Colouring component, improves the reduction effect and picture quality of image realistic colour, and the setting in white light transmittant area can improve it is whole
The brightness of individual image, the display effect of image is improved, each location of pixels can be obtained respectively as far as possible thus by four two field pictures
Multiple color components, and the color component for partly lacking, then drawn by interpolation method estimation, the estimation efficiency of interpolation method
It is higher, and the degree of accuracy estimated is relatively close to real color component, thus, improves the degree of accuracy of color rendition.
In order to realize above-described embodiment, the application also proposes a kind of image color processing unit.
Fig. 9 is the structural representation of the image color processing unit of the application one embodiment.
The image color processing unit described device is applied in the terminal device with shoot function, as shown in Fig. 2 institute
The imaging modules stated in terminal device include：MEMS and imaging sensor, wherein,
The MEMS control described image sensor movement, described image sensor include photosensitive pixel array,
And it is arranged on the optical filter on the photosensitive pixel array.
As shown in figure 1, the optical filter 10 includes multiple filter units 11, each filter unit 11 is the square that a line four arranges
Array element, the matrix unit include：111, the second color filter discs 112, one of a first color filter disc laterally disposed
Individual 3rd color filter disc 113 and a white light transmittant area 114；
As shown in figure 9, described image color processing apparatus includes：
First processing module 41, for shooting the first two field picture to preview screen in initial position；
Second processing module 42, for trigger the MEMS by described image sensor from the initial position to
Preset direction moves a pixel distance to first position, and shoots the second two field picture in the first position；
3rd processing module 43, for trigger the MEMS by described image sensor from the first position to
The preset direction moves a pixel distance to the second place, and shoots the 3rd two field picture in the second place；
Fourth processing module 44, for trigger the MEMS by described image sensor from the second place to
Preset direction moves a pixel distance to the 3rd position, and shoots the 4th two field picture in the 3rd position；
Synthesis module 45, for according to first two field picture, second two field picture, the 3rd two field picture and institute
Color component corresponding to each location of pixels in the preview screen obtained in the 4th two field picture by the optical filter is stated, is carried out
Synthesis processing generates the 5th two field picture of the preview screen.
In the present embodiment, if the preset direction is to the right, trigger the MEMS and pass described image
Sensor moves right a pixel distance to first position from the initial position, and shoots the second frame figure in the first position
Picture；If the preset direction for the left, triggers the MEMS by described image sensor from the initial position
A pixel distance is moved to the left to first position, and the second two field picture is shot in the first position.
It should be noted that the foregoing explanation to image color processing method embodiment is also applied for the embodiment
Image color processing unit, here is omitted.
The image color processing unit of the embodiment of the present application, the image color processing unit are applied in terminal device, eventually
Imaging modules in end equipment include MEMS and imaging sensor, and MEMS is connected with imaging sensor, microcomputer
Electric system control imaging sensor movement, and optical filter and photosensitive pixel array are provided with imaging sensor, optical filter includes
Multiple filter units, multiple filter units form the matrix structure of the row of a line four, and include the first face in filter unit
Color filter disc, the second color filter disc, the 3rd color filter disc and white light transmittant area, shoot the first two field picture, tool in initial position first
The MEMS control imaging sensor for having precise displacement control function obtains after moving a pixel distance along preset direction
Second two field picture, the imaging sensor of MEMS control afterwards continue to move a pixel distance along preset direction, obtain the
Three two field pictures, MEMS control imaging sensor to continue to move a pixel distance along preset direction, obtain the 4th frame again
Image, to cause terminal device to obtain the first two field picture, the second two field picture, the 3rd two field picture and the 4th two field picture before movement,
And according to the color component of each location of pixels of each two field picture by the first two field picture, the second two field picture, the 3rd two field picture and the 4th
Two field picture carries out being synthetically formed the 5th two field picture, i.e. final image, and thereby, it is possible to obtain more colors point in image pixel
Amount, the reduction effect and picture quality of image realistic colour are improved, and the setting in white light transmittant area can improve whole figure
The brightness of picture, the display effect of image is improved,.
Therefore position due to lacking color component in each location of pixels, can will be located at edge at marginal position
Location of pixels image excision, i.e. each color component only pair simultaneously with the pixel position of three color components is carried out
It is synthetically formed the 5th two field picture.Specifically, synthesis module 45 is specifically used for：According to first two field picture, the second frame figure
As, the 3rd two field picture and it is described in color point corresponding to each location of pixels in the preview screen that is obtained by the optical filter
Amount, obtain first location of pixels with the first color component, the second color component and the 3rd color component；Will be all
Each color component of first location of pixels carries out synthesis processing the 4th two field picture of generation.
Figure 10 is the structural representation of the image color processing unit of the application another embodiment.
As shown in Figure 10, can also be specifically included based on embodiment illustrated in fig. 9, the synthesis module 45：Acquiring unit
451st, computing unit 452 and generation unit 453.
The acquiring unit 451 is used for：According to first two field picture, second two field picture and the 3rd frame
Color component corresponding to each location of pixels in the preview screen obtained in image by the optical filter, acquisition have simultaneously
First location of pixels of the first color component, the second color component and the 3rd color component, and asynchronously there is the first color
Second location of pixels of component, the second color component and the 3rd color component.
The computing unit 452 is used for：The color lacked by all second location of pixels of default interpolation algorithm acquisition
Component.
The generation unit 453 is used for：According to each color component of all second location of pixels after interpolation processing, Yi Jisuo
Each color component for having the first location of pixels carries out the 4th two field picture that synthesis processing generates the preview screen.
In the present embodiment, further, the computing unit 452 is used for：If second location of pixels has one
Individual color component, then two other color component lacked by all second location of pixels of default interpolation algorithm acquisition；Or
Person, if second location of pixels has two color components, all second pixels are obtained by default interpolation algorithm
Another color component that position lacks.
It should be noted that the foregoing explanation to image color processing method embodiment is also applied for the embodiment
Image color processing unit, here is omitted.
In order to realize above-described embodiment, the application also proposes a kind of terminal device.
Figure 11 is the structural representation of the terminal device of the application one embodiment.Terminal device 1000 in the present embodiment
It can be mobile phone with shoot function etc..
As shown in figure 11, the terminal device, including：Housing and the imaging modules 1000 being arranged in housing, wherein, it is described
Imaging modules 1000 include：MEMS 20, imaging sensor 30, camera lens 1001, memory 1002 and processor 1003,
The MEMS 20 controls described image sensor movement,
Described image sensor includes photosensitive pixel array, and the optical filter being arranged on the photosensitive pixel array,
The optical filter includes multiple filter units, and each filter unit is the matrix unit that a line four arranges, and the matrix unit includes：
A first color filter disc, a second color filter disc, a 3rd color filter disc and the white light transmittant area laterally disposed；
The memory 1002 is used to store executable program code；
The processor 1003 is by reading the executable program code stored in memory 1002 to perform：
The first two field picture is shot to preview screen in initial position；
Trigger the MEMS 20 and described image sensor 30 is moved one from the initial position to preset direction
Individual pixel distance shoots the second two field picture to first position, and in the first position；
Trigger the MEMS 20 and described image sensor 30 is moved one from the first position to preset direction
Individual pixel distance shoots the 3rd two field picture to the second place, and in the second place；
Trigger the MEMS and described image sensor is moved into a picture from the second place to preset direction
Plain distance shoots the 4th two field picture to the 3rd position, and in the 3rd position；
According in first two field picture, second two field picture, the 3rd two field picture and the 4th two field picture
Color component corresponding to each location of pixels in the preview screen obtained by the optical filter, carry out synthesis processing generation institute
State the 5th two field picture of preview screen.
It should be noted that the foregoing explanation to image color processing method embodiment is also applied for the embodiment
Image color processing unit, here is omitted.
The terminal device of the embodiment of the present application, the MEMS control imaging sensor movement in the terminal device, and
Optical filter and photosensitive pixel array are provided with imaging sensor, optical filter includes multiple filter units, multiple optical filter lists
Member forms the matrix structure that a line four arranges, and includes the first color filter disc, the second color filter disc, the 3rd color in filter unit
Filter disc and white light transmittant area, the first two field picture is shot in initial position first, the micro-electro-mechanical systems with precise displacement control function
System control imaging sensor obtains the second two field picture after moving a pixel distance along preset direction, and MEMS controls afterwards
Imaging sensor continues to move a pixel distance along preset direction, obtains the 3rd two field picture, is then moved again to preset direction
One pixel distance, the 4th two field picture is obtained, to cause terminal device to obtain the first two field picture, the second two field picture, the 3rd frame figure
Picture and the 4th two field picture, and according to the color component of each location of pixels of each two field picture by the first two field picture, the second two field picture,
Three two field pictures and the 4th two field picture carry out being synthetically formed the 5th two field picture, i.e. final image, and thereby, it is possible to obtain in image pixel
More color components, improve the reduction effect and picture quality of image realistic colour, and the setting energy in white light transmittant area
The brightness of whole image is enough improved, improves the display effect of image.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the application.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present application, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize specific logical function or process
Point, and the scope of the preferred embodiment of the application includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be by the application
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the application can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Claims (4)
- A kind of 1. image color processing method, it is characterised in that methods described is applied in the terminal device with shoot function, Imaging modules in the terminal device include：MEMS and imaging sensor, wherein,The MEMS control described image sensor movement, described image sensor include photosensitive pixel array, and The optical filter being arranged on the photosensitive pixel array, the optical filter include multiple filter units, and each filter unit is one The matrix unit that row four arranges, the matrix unit include：A first color filter disc laterally disposing, the second color filter Piece, a 3rd color filter disc and a white light transmittant area；It the described method comprises the following steps：The first two field picture is shot to preview screen in initial position；Trigger the MEMS described image sensor is moved from the initial position to preset direction a pixel away from The second two field picture of the preview screen is shot to first position, and in the first position；Trigger the MEMS and described image sensor is moved into a picture from the first position to the preset direction Element distance arrives the second place, and shoots the 3rd two field picture of the preview screen in the second place；Trigger the MEMS described image sensor is moved from the second place to preset direction a pixel away from The 4th two field picture of the preview screen is shot to the 3rd position, and in the 3rd position；Pass through according in first two field picture, second two field picture, the 3rd two field picture and the 4th two field picture Color component corresponding to each location of pixels in the preview screen that the optical filter obtains, it is described pre- to carry out synthesis processing generation Look at the 5th two field picture of picture, wherein, the optical filter moves with the movement of described image sensor, wherein, according to institute State in the first two field picture, second two field picture, the 3rd two field picture and the 4th two field picture by the optical filter Color component corresponding to each location of pixels in the preview screen obtained, obtain has the first color component, the second face simultaneously First location of pixels of colouring component and the 3rd color component, and asynchronously have the first color component, the second color component, With the second location of pixels of the 3rd color component；The color lacked by all second location of pixels of default interpolation algorithm acquisition Component；According to each color component of all second location of pixels after interpolation processing, and each color of all first location of pixels Component carries out the 5th two field picture that synthesis processing generates the preview screen；Wherein, if second location of pixels has one Individual color component, then two other color component lacked by all second location of pixels of default interpolation algorithm acquisition；Or Person, if second location of pixels has two color components, all second pixels are obtained by default interpolation algorithm Another color component that position lacks.
- 2. according to the method for claim 1, it is characterised in thatIf the preset direction for the right, triggers the MEMS by described image sensor from the initial position A pixel distance move right to first position, and the second two field picture is shot in the first position；If the preset direction for the left, triggers the MEMS by described image sensor from the initial position A pixel distance is moved to the left to first position, and the second two field picture is shot in the first position.
- A kind of 3. terminal device, it is characterised in that including：Housing and the imaging modules being arranged in the housing, wherein, it is described Imaging modules include：MEMS, imaging sensor, camera lens, memory and processor,The MEMS control described image sensor movement,Described image sensor includes photosensitive pixel array, and the optical filter being arranged on the photosensitive pixel array, described Optical filter includes multiple filter units, and each filter unit is the matrix unit that a line four arranges, and the matrix unit includes：Laterally A first color filter disc, a second color filter disc, a 3rd color filter disc and a white light transmittant area for deployment；The memory is used to store executable program；The executable program that the processor is stored by reading in memory is to perform：The first two field picture is shot to preview screen in initial position；Trigger the MEMS described image sensor is moved from the initial position to preset direction a pixel away from The second two field picture of the preview screen is shot to first position, and in the first position；Trigger the MEMS and described image sensor is moved into a picture from the first position to the preset direction Element distance arrives the second place, and shoots the 3rd two field picture of the preview screen in the second place；Trigger the MEMS described image sensor is moved from the second place to preset direction a pixel away from The 4th two field picture of the preview screen is shot to the 3rd position, and in the 3rd position；Pass through according in first two field picture, second two field picture, the 3rd two field picture and the 4th two field picture Color component corresponding to each location of pixels in the preview screen that the optical filter obtains, it is described pre- to carry out synthesis processing generation Look at the 5th two field picture of picture, wherein, according to first two field picture, second two field picture, the 3rd two field picture and Color component corresponding to each location of pixels in the preview screen obtained in 4th two field picture by the optical filter, is obtained Take while there is the first location of pixels of the first color component, the second color component and the 3rd color component, and asynchronously have There is the second location of pixels of the first color component, the second color component and the 3rd color component；Obtained by default interpolation algorithm The color component for taking all second location of pixels to lack；According to each color component of all second location of pixels after interpolation processing, And each color component of all first location of pixels carries out the 5th two field picture that synthesis processing generates the preview screen；Its In, if second location of pixels has a color component, all second pixels are obtained by default interpolation algorithm Two other color component that position lacks；Or if second location of pixels has two color components, by pre- If interpolation algorithm obtain another color component that all second location of pixels lack.
- 4. terminal device according to claim 3, it is characterised in thatIf the preset direction for the right, triggers the MEMS by described image sensor from the initial position A pixel distance move right to first position, and the second two field picture is shot in the first position；If the preset direction for the left, triggers the MEMS by described image sensor from the initial position A pixel distance is moved to the left to first position, and the second two field picture is shot in the first position.
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| CN105100558A (en) * | 2014-05-16 | 2015-11-25 | 全视科技有限公司 | Wafer level camera having movable color filter grouping |
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