CN107393504A - Picture adjustment methods and device based on RGBW panels - Google Patents

Picture adjustment methods and device based on RGBW panels Download PDF

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Publication number
CN107393504A
CN107393504A CN201710813296.2A CN201710813296A CN107393504A CN 107393504 A CN107393504 A CN 107393504A CN 201710813296 A CN201710813296 A CN 201710813296A CN 107393504 A CN107393504 A CN 107393504A
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color
saturation degree
pending image
pixel
determined
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CN107393504B (en
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王烨东
刁玉洁
沈海杰
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Hisense Visual Technology Co Ltd
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Qingdao Hisense Electronics Co Ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)

Abstract

The embodiment of the present invention provides a kind of picture adjustment methods and device based on RGBW panels, and this method includes：Determine at least one color included in pending image；According to the actual saturation degree of each color at least one color, the actual saturation degree of the acquisition pending image；According to the theoretical saturation degree of each color at least one color, the theoretical saturation degree of the acquisition pending image；According to the actual saturation degree of the pending image and the theoretical saturation degree of the pending image, adjustment parameter is determined；The gamma values before the flex point and flex point of the pending image are determined according to the adjustment parameter.Colored brightness in image for improving RGBW Display panels.

Description

Picture adjustment methods and device based on RGBW panels
Technical field
The present embodiments relate to image procossing basic field, more particularly to a kind of image adjustment side based on RGBW panels Method and device.
Background technology
At present, in order to lift the light transmittance of panel in display and reduce the cost of backlight module in display, RGBW Panel is widely used in the display.
Include red sub-pixel, green sub-pixels and blue subpixels in RGB panels, each sub-pixel can lead to Cross liquid crystal molecule and overturn the color so that needed for RGB Display panels.Compared to RGB panels, white son is added in RGBW panels Pixel, white sub-pixels can not be presented any colour, when white sub-pixels are lighted, improve the printing opacity of RGBW panels Rate.When needing to show colored, all sub-pixels can be overturn in RGB panels, the colour needed with display so that The colour of RGB Display panels is brighter.But in RGBW Display panel colours, presence and white due to white sub-pixels Any colour can not be presented in pixel, therefore, cause colored dark in RGBW Display panel images, cause RGBW panels Display effect is poor.
The content of the invention
The embodiment of the present invention provides a kind of picture adjustment methods and device based on RGBW panels, improves RGBW panels and shows Colored brightness in the image shown.
In a first aspect, the embodiment of the present invention provides a kind of picture adjustment methods based on RGBW panels, including：
Determine at least one color included in pending image；
According to the actual saturation degree of each color at least one color, the reality of the acquisition pending image Saturation degree；
According to the theoretical saturation degree of each color at least one color, the theory of the acquisition pending image Saturation degree；
According to the actual saturation degree of the pending image and the theoretical saturation degree of the pending image, it is determined that regulation ginseng Number；
The gamma values before the flex point and flex point of the pending image are determined according to the adjustment parameter.
In a kind of possible embodiment, at least one color included in pending image is determined, including：
Obtain the tone of each pixel in the pending image；
Tone range according to where the tone of each pixel, color corresponding to each pixel is determined, wherein, one Tone range corresponds to a kind of color；
According to color corresponding to each pixel, at least one color included in pending image is determined.
In alternatively possible embodiment, according to the actual saturation of each color at least one color Degree, the actual saturation degree of the pending image is obtained, including：
Pixel corresponding to each color is determined in the pending image；
According to the number of the saturation degree of pixel and the pixel of each color object corresponding to each color, it is determined that often A kind of actual saturation degree of color；
The actual saturation degree sum of each color is defined as the actual saturation degree of the pending image.
In alternatively possible embodiment, according to the theoretical saturation of each color at least one color Degree, the theoretical saturation degree of the pending image is obtained, including：
Obtain theoretical saturation degree corresponding to each color at least one color；
Theoretical saturation degree sum corresponding to each described color is defined as to the theoretical saturation degree of the pending image.
In alternatively possible embodiment, the flex point of the pending image is determined according to the adjustment parameter, is wrapped Include：
According to equation below one, the flex point of the pending image is determined：
Wherein, a is the adjustment parameter, and the β is parameter preset.
In alternatively possible embodiment, before the flex point that the pending image is determined according to the adjustment parameter Gamma values, including：
According to equation below two, the gamma values before the flex point of the pending image are determined：
Wherein, a is the adjustment parameter, a1For first threshold, a2For Second Threshold.
Second aspect, the embodiment of the present invention provide a kind of image adjusting mechanism based on RGBW panels, including first determines Module, the first acquisition module, the second acquisition module, the second determining module and the 3rd determining module, wherein,
First determining module is used for, and determines at least one color included in pending image；
First acquisition module is used for, and according to the actual saturation degree of each color at least one color, obtains Take the actual saturation degree of the pending image；
Second acquisition module is used for, and according to the theoretical saturation degree of each color at least one color, obtains Take the theoretical saturation degree of the pending image；
Second determining module is used for, according to the actual saturation degree of the pending image and the pending image Theoretical saturation degree, determines adjustment parameter；
3rd determining module is used for, and the flex point and flex point of the pending image are determined according to the adjustment parameter Gamma values before.
In a kind of possible embodiment, first determining module is specifically used for：
Obtain the tone of each pixel in the pending image；
Tone range according to where the tone of each pixel, color corresponding to each pixel is determined, wherein, one Tone range corresponds to a kind of color；
According to color corresponding to each pixel, at least one color included in pending image is determined.
In alternatively possible embodiment, first acquisition module is specifically used for：
Pixel corresponding to each color is determined in the pending image；
According to the number of the saturation degree of pixel and the pixel of each color object corresponding to each color, it is determined that often A kind of actual saturation degree of color；
The actual saturation degree sum of each color is defined as the actual saturation degree of the pending image.
In alternatively possible embodiment, second acquisition module is specifically used for：
Obtain theoretical saturation degree corresponding to each color at least one color；
Theoretical saturation degree sum corresponding to each described color is defined as to the theoretical saturation degree of the pending image.
In alternatively possible embodiment, the 3rd determining module is specifically used for：
According to equation below one, the flex point of the pending image is determined：
Wherein, a is the adjustment parameter, and the β is parameter preset.
In alternatively possible embodiment, the 3rd determining module is specifically used for：
According to equation below two, the gamma values before the flex point of the pending image are determined：
Wherein, a is the adjustment parameter, a1For first threshold, a2For Second Threshold.
Picture adjustment methods and device provided in an embodiment of the present invention based on RGBW panels, when needing to pending image When being handled, at least one color included in pending image is first determined, further according to actual corresponding to each color Saturation degree obtains the actual saturation degree of pending image, and theoretical saturation degree obtains pending image according to corresponding to each color Theoretical saturation degree, according to the actual saturation degree of pending image and theoretical saturation degree, determine adjustment parameter, and join according to regulation Number determines the flex point and gamma values of pending image.In above process, can first basis before being shown to image The saturation degree of image, flex point and gamma values to image are adjusted, can not only improve the contrast of image, can also carry Colored brightness in the image of high RGBW Display panels.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of RGBW panels provided in an embodiment of the present invention；
Fig. 2 is the schematic flow sheet one of the picture adjustment methods provided in an embodiment of the present invention based on RGBW panels；
Fig. 3 is gamma schematic diagram provided in an embodiment of the present invention；
Fig. 4 is the schematic flow sheet two of the picture adjustment methods provided in an embodiment of the present invention based on RGBW panels；
Fig. 5 is the structural representation of the image adjusting mechanism provided in an embodiment of the present invention based on RGBW panels.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
For the ease of the understanding to the application, RGBW panels are introduced with reference to Fig. 1 first.Fig. 1 is implemented for the present invention The structural representation for the RGBW panels that example provides.Refer to Fig. 1, RGBW panels include red sub-pixel, green sub-pixels, Blue subpixels and white sub-pixels.Wherein, a pixel can include two sub-pixels, for example, such as the pixel A institute in Fig. 1 Show；One pixel can also include 2.5 sub-pixels, for example, shown in the pixel B in Fig. 1.It should be noted that for one RGBW panels, the number of pixels that all pixels include are identical, i.e. all pixels all include two sub- pictures in a RGBW panel All pixels all include 2.5 sub-pixels in element, or a RGBW panel.In RGBW panels, red sub-pixel, green Pixel, blue subpixels can be overturn to show different colors, and white sub-pixels are only able to display white.
In this application,, can be first according to figure before being shown to image in order to lift brightness colored in image The saturation degree of picture, flex point and gamma values to image are adjusted, to strengthen the middle colored brightness of image.
Below, by specific embodiment, the technical scheme shown in the application is described in detail.It should be noted that Several specific embodiments can be combined with each other below, for same or analogous content, no longer carry out in various embodiments Repeat specification.
Fig. 2 is the schematic flow sheet one of the picture adjustment methods provided in an embodiment of the present invention based on RGBW panels.It please join See Fig. 2, this method can include：
S201, determine at least one color included in pending image.
The executive agent of the embodiment of the present invention can be that the image adjusting mechanism based on RGBW panels (adjust by hereinafter referred image Regulating device), the image adjusting mechanism can be arranged in the terminal device with RGBW panels, for example, terminal device can be The equipment such as TV, computer, mobile phone.Optionally, image adjusting mechanism can be realized by software, or, image adjusting mechanism can With being implemented in combination with by software and hardware.
Optionally, pending image can be the frame of video in the video to be played of TV, or TV is to be shown Static page etc..
Optionally, at least one color that pending image includes can be determined by following feasible implementation： The tone of each pixel in pending image is obtained, the tone range according to where the tone of each pixel, is determined each Color corresponding to individual pixel, according to color corresponding to each pixel, determine at least one face included in pending image Color, wherein, a tone range corresponds to a kind of color.
Optionally, for any one pixel in pending image, pending image can be obtained by equation below In a pixel tone h：
By equation below, according to the r values of the pixel, g values, b values, max values and min values, the tone h of the pixel is determined：
Wherein, r is the numerical value of R in pixel, and g is the numerical value of G in pixel, and b is the numerical value of B in pixel, in max r, g, b Maximum numerical value, minimum numerical value in min r, g, b.
The corresponding color of tone range in embodiments of the present invention, tone range and color can be pre-set Corresponding relation, for example, it is assumed that having divided 10 colors, the corresponding relation of 10 color and tint scopes can be as shown in table 1：
Table 1
For each pixel in pending image, the tone range according to where the tone of pixel, each is determined Color corresponding to pixel, for example, it is assumed that the tone of a pixel is between h9-h10, it may be determined that color corresponding to the pixel For blueness.
According to the color of each pixel object, at least one color that pending image includes is determined.For example, it is assumed that Pending image includes 1000 pixels, wherein color corresponding to 300 pixels is blueness, color corresponding to 400 pixels For red, color corresponding to 200 pixels is yellow, and color corresponding to 100 pixels is white, then can determine pending figure As at least one color included is：Blueness, red, yellow and white.
S202, the actual saturation degree according to each color at least one color, the reality for obtaining pending image are satisfied And degree.
Optionally, the actual saturation degree of each color is first obtained, then the actual saturation degree sum of each color is true It is set to the actual saturation degree of pending image.
Optionally, for any one color, pixel corresponding to the color can be first determined, and according to corresponding to the color The number of pixel corresponding to the saturation degree of pixel and the color, determine the actual saturation degree of the color.
Optionally, for any one pixel in pending image, any one picture can be obtained by equation below The saturation degree s of element：
Wherein, numerical value maximum in max r, g, b, minimum numerical value in min r, g, b, r are the numerical value of R in pixel, g For the numerical value of G in pixel, b is the numerical value of B in pixel.
Optionally, for the n color in pending image, it can determine that n color is corresponding by equation below Actual saturation degree Sn：
Wherein, inmaxFor the number of pixel corresponding to n color, sniFor corresponding to n color, ith pixel Saturation degree.
S203, the theoretical saturation degree according to each color at least one color, the theory for obtaining pending image are satisfied And degree.
Optionally, each color has its corresponding theoretical saturation degree, can obtain each at least one color Theoretical saturation degree corresponding to color, the theory that theoretical saturation degree sum corresponding to each color is defined as pending image is satisfied And degree.
For example, it is assumed that the color that pending image includes is：Blueness, red, yellow and white, it is further assumed that blueness is corresponding Theoretical saturation degree be s1, theoretical saturation degree corresponding to red be s2, and theoretical saturation degree corresponding to yellow is s3, it is white corresponding to Theoretical saturation degree is s4, then the theoretical saturation degree of pending image is s1+s2+s3+s4.
S204, according to the actual saturation degree of pending image and the theoretical saturation degree of pending image, determine adjustment parameter.
Optionally, can be by the ratio of the actual saturation degree of pending image and the theoretical saturation degree of pending image, really It is set to adjustment parameter.
Gamma values before S205, the flex point and flex point for determining according to adjustment parameter pending image.
Optionally, the flex point of pending image refers to corresponding minimum image brightness during image saturation.
Below, the gamma with reference to shown in Fig. 3, the flex point of pending image is described in detail.
Fig. 3 is gamma schematic diagram provided in an embodiment of the present invention.Fig. 3 is referred to, transverse axis is the brightness of input, is indulged Axle is the brightness of output.When gamma values are different, the gamma of image also differs.
The gamma that gamma values are 4 is referred to, input brightness corresponding to A points is 4.5.When input brightness is less than 4.5 When, with the increase of input brightness, input brightness also increases.When brightness is more than 4.5, with the increase of input brightness, input Brightness no longer increases, i.e. A points are the flex point for the gamma that gamma values are 4.
The gamma that gamma values are 1 is referred to, input brightness corresponding to B points is 5.5.When input brightness is less than 5.5 When, with the increase of input brightness, input brightness also increases.When brightness is more than 5.5, with the increase of input brightness, input Brightness no longer increases, i.e. B points are the flex point for the gamma that gamma values are 1.
The gamma that gamma values are 2 is referred to, input brightness corresponding to C points is 4.6.When input brightness is less than 4.6 When, with the increase of input brightness, input brightness also increases.When brightness is more than 4.6, with the increase of input brightness, input Brightness no longer increases, i.e. C points are the flex point for the gamma that gamma values are 2.
The gamma values of image are a kind of characteristic of image, can be realized by adjusting the gamma values of image to image Gamma enters edlin, to carry out the method for non-linear tone editor to image.By adjusting the gamma values of image not only The brightness of color can be adjusted, dark parts and light-colored part in picture signal can also be detected, and increases both ratios, So as to improve picture contrast effect.
Optionally, the flex point of pending image can according to equation below one, be determined：
Wherein, a is adjustment parameter, and β is parameter preset.
Optionally, β can be 0.25, certainly, in actual application, can according to be actually needed set β value, The embodiment of the present invention is not especially limited to this.
Optionally, the gamma values before the flex point of pending image can be determined according to equation below two：
Wherein, a is adjustment parameter, a1For first threshold, a2For Second Threshold.
Optionally, a1Can be 0.4, a2It can be 07, certainly, in actual application, can be set according to being actually needed Put a1And a2Value, the embodiment of the present invention is not especially limited to this.
Picture adjustment methods provided in an embodiment of the present invention based on RGBW panels, when needing at pending image During reason, at least one color included in pending image is first determined, further according to actual saturation degree corresponding to each color The actual saturation degree of pending image is obtained, theoretical saturation degree obtains the theory of pending image according to corresponding to each color Saturation degree, according to the actual saturation degree of pending image and theoretical saturation degree, adjustment parameter is determined, and determine according to adjustment parameter The flex point and gamma values of pending image.In above process, can be first according to image before being shown to image Saturation degree, flex point and gamma values to image are adjusted, can not only improve the contrast of image, can also strengthen image Middle colored brightness.
On the basis of above-described embodiment, below, with reference to Fig. 4, the technical scheme shown in above method embodiment is carried out It is further described.
Fig. 4 is the schematic flow sheet two of the picture adjustment methods provided in an embodiment of the present invention based on RGBW panels.It please join See Fig. 4, this method can include：
S401, the tone for obtaining each pixel in pending image.
S402, the tone range according to where the tone of each pixel, determine color corresponding to each pixel, its In, a tone range corresponds to a kind of color.
S403, the color according to corresponding to each pixel, determine at least one color included in pending image.
According to S401-S403, it may be determined that at least one color that pending image includes is obtained, it is of course also possible to Determine at least one color included in pending image by other feasible implementations, the embodiment of the present invention to this not Make specific limit.
It should be noted that S401-S403 process may refer to the description in S201, no longer repeated herein.
S404, pixel corresponding to each color is determined in pending image.
S405, the number of the saturation degree of pixel and the pixel of each color object according to corresponding to each color, really The actual saturation degree of each fixed color.
S406, the actual saturation degree that the actual saturation degree sum of each color is defined as to pending image.
According to S404-S406, it may be determined that the actual saturation degree of pending image is obtained, it is of course also possible to by other Feasible implementation determines the actual saturation degree of pending image, and the embodiment of the present invention is not especially limited to this.
It should be noted that S404-S406 process may refer to the description in S202, no longer repeated herein.
S407, obtain theoretical saturation degree corresponding to each color at least one color.
S408, the theoretical saturation degree that theoretical saturation degree sum corresponding to each color is defined as to pending image.
According to S407-S408, it may be determined that the theoretical saturation degree of pending image is obtained, it is of course also possible to by other Feasible implementation determines the theoretical saturation degree of pending image, and the embodiment of the present invention is not especially limited to this.
It should be noted that S407-S408 process may refer to the description in S203, no longer repeated herein.
S409, according to the actual saturation degree of pending image and the theoretical saturation degree of pending image, determine adjustment parameter.
Gamma values before S410, the flex point and flex point for determining according to adjustment parameter pending image.
It should be noted that S409-S410 process may refer to the description in S204-S205, no longer gone to live in the household of one's in-laws on getting married herein State.
Fig. 5 is the structural representation of the image adjusting mechanism provided in an embodiment of the present invention based on RGBW panels.Refer to Fig. 5, the device can include the first determining module 11, the first acquisition module 12, the second acquisition module 13, the second determining module 14 With the 3rd determining module 15, wherein,
First determining module 11 is used for, and determines at least one color included in pending image；
First acquisition module 12 is used for, according to the actual saturation degree of each color at least one color, Obtain the actual saturation degree of the pending image；
Second acquisition module 13 is used for, according to the theoretical saturation degree of each color at least one color, Obtain the theoretical saturation degree of the pending image；
Second determining module 14 is used for, according to the actual saturation degree of the pending image and the pending image Theoretical saturation degree, determine adjustment parameter；
3rd determining module 15 is used for, and determines the flex point of the pending image according to the adjustment parameter and turns Gamma values before point.
Image adjusting mechanism provided in an embodiment of the present invention based on RGBW panels can perform above method embodiment institute The technical scheme shown, its realization principle and beneficial effect are similar, are no longer repeated herein.
In a kind of possible embodiment, first determining module 11 is specifically used for：
Obtain the tone of each pixel in the pending image；
Tone range according to where the tone of each pixel, color corresponding to each pixel is determined, wherein, one Tone range corresponds to a kind of color；
According to color corresponding to each pixel, at least one color included in pending image is determined.
In alternatively possible embodiment, first acquisition module 12 is specifically used for：
Pixel corresponding to each color is determined in the pending image；
According to the number of the saturation degree of pixel and the pixel of each color object corresponding to each color, it is determined that often A kind of actual saturation degree of color；
The actual saturation degree sum of each color is defined as the actual saturation degree of the pending image.
In alternatively possible embodiment, second acquisition module 13 is specifically used for：
Obtain theoretical saturation degree corresponding to each color at least one color；
Theoretical saturation degree sum corresponding to each described color is defined as to the theoretical saturation degree of the pending image.
In alternatively possible embodiment, the 3rd determining module 15 is specifically used for：
According to equation below one, the flex point of the pending image is determined：
Wherein, a is the adjustment parameter, and the β is parameter preset.
In alternatively possible embodiment, the 3rd determining module 15 is specifically used for：
According to equation below two, the gamma values before the flex point of the pending image are determined：
Wherein, a is the adjustment parameter, a1For first threshold, a2For Second Threshold.
Image adjusting mechanism provided in an embodiment of the present invention based on RGBW panels can perform above method embodiment institute The technical scheme shown, its realization principle and beneficial effect are similar, are no longer repeated herein.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is only illustrating the technical scheme of the embodiment of the present invention, rather than to it Limitation；Although the embodiment of the present invention is described in detail with reference to foregoing embodiments, one of ordinary skill in the art It should be understood that：It can still modify to the technical scheme described in foregoing embodiments, either to which part or All technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this hair The scope of bright embodiment scheme.

Claims (10)

  1. A kind of 1. picture adjustment methods based on RGBW panels, it is characterised in that including：
    Determine at least one color included in pending image；
    According to the actual saturation degree of each color at least one color, the actual saturation of the acquisition pending image Degree；
    According to the theoretical saturation degree of each color at least one color, the theoretical saturation of the acquisition pending image Degree；
    According to the actual saturation degree of the pending image and the theoretical saturation degree of the pending image, adjustment parameter is determined；
    The gamma values before the flex point and flex point of the pending image are determined according to the adjustment parameter.
  2. 2. according to the method for claim 1, it is characterised in that determine at least one face included in pending image Color, including：
    Obtain the tone of each pixel in the pending image；
    Tone range according to where the tone of each pixel, color corresponding to each pixel is determined, wherein, a tone Scope corresponds to a kind of color；
    According to color corresponding to each pixel, at least one color included in pending image is determined.
  3. 3. method according to claim 1 or 2, it is characterised in that according to each color at least one color Actual saturation degree, obtain the actual saturation degree of the pending image, including：
    Pixel corresponding to each color is determined in the pending image；
    According to the number of the saturation degree of pixel and the pixel of each color object corresponding to each color, each is determined The actual saturation degree of color；
    The actual saturation degree sum of each color is defined as the actual saturation degree of the pending image.
  4. 4. method according to claim 1 or 2, it is characterised in that according to each color at least one color Theoretical saturation degree, obtain the theoretical saturation degree of the pending image, including：
    Obtain theoretical saturation degree corresponding to each color at least one color；
    Theoretical saturation degree sum corresponding to each described color is defined as to the theoretical saturation degree of the pending image.
  5. 5. method according to claim 1 or 2, it is characterised in that the pending figure is determined according to the adjustment parameter The flex point of picture, including：
    According to equation below one, the flex point of the pending image is determined：
    Wherein, a is the adjustment parameter, and the β is parameter preset.
  6. 6. method according to claim 1 or 2, it is characterised in that the pending figure is determined according to the adjustment parameter Gamma values before the flex point of picture, including：
    According to equation below two, the gamma values before the flex point of the pending image are determined：
    Wherein, a is the adjustment parameter, a1For first threshold, a2For Second Threshold.
  7. 7. a kind of image adjusting mechanism based on RGBW panels, it is characterised in that obtain mould including the first determining module, first Block, the second acquisition module, the second determining module and the 3rd determining module, wherein,
    First determining module is used for, and determines at least one color included in pending image；
    First acquisition module is used for, and according to the actual saturation degree of each color at least one color, obtains institute State the actual saturation degree of pending image；
    Second acquisition module is used for, and according to the theoretical saturation degree of each color at least one color, obtains institute State the theoretical saturation degree of pending image；
    Second determining module is used for, according to the actual saturation degree of the pending image and the theory of the pending image Saturation degree, determine adjustment parameter；
    3rd determining module is used for, before flex point and flex point that the pending image is determined according to the adjustment parameter Gamma values.
  8. 8. device according to claim 7, it is characterised in that first determining module is specifically used for：
    Obtain the tone of each pixel in the pending image；
    Tone range according to where the tone of each pixel, color corresponding to each pixel is determined, wherein, a tone Scope corresponds to a kind of color；
    According to color corresponding to each pixel, at least one color included in pending image is determined.
  9. 9. the device according to claim 7 or 8, it is characterised in that first acquisition module is specifically used for：
    Pixel corresponding to each color is determined in the pending image；
    According to the number of the saturation degree of pixel and the pixel of each color object corresponding to each color, each is determined The actual saturation degree of color；
    The actual saturation degree sum of each color is defined as the actual saturation degree of the pending image.
  10. 10. the device according to claim 7 or 8, it is characterised in that second acquisition module is specifically used for：
    Obtain theoretical saturation degree corresponding to each color at least one color；
    Theoretical saturation degree sum corresponding to each described color is defined as to the theoretical saturation degree of the pending image.
CN201710813296.2A 2017-09-11 2017-09-11 RGBW panel-based image adjusting method and device Active CN107393504B (en)

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