CN113298726A - Image display adjusting method and device, display equipment and storage medium - Google Patents

Abstract

The invention discloses an image display adjustment method, device, display device and storage medium. The method comprises: adjusting and acquiring an input original image, and acquiring the RGBA value of each pixel point in the original image; parameterizing the RGBA value of the pixel point Adjust to generate a new RGBA value; wherein, the adjusted parameters include one or more of brightness, contrast, saturation and picture color temperature; a new image is generated according to the new RGBA value. The present invention can eliminate or weaken the inconsistent display effect of the same work caused by the difference of display devices, and restore the real image.

Description

An image display adjustment method, device, display device and storage medium

technical field

The present invention relates to the technical field of image processing, in particular to an image display adjustment method, device, display device and storage medium.

Background technique

Due to the differences in production technology and materials, the display effect of the terminal screen will be inconsistent (for example, the effect of the same image on different display screens is different), and because the parameters such as brightness and color temperature of the display screen are different from those of the original film. There are certain differences in brightness and color temperature, which will also cause the display effect to be different from the original color. These differences will have a greater impact on some usage scenarios. For example: art color teaching and art color teaching in the art, art and other industries, the color effect of the displayed image on the display screen is required to be highly restored to the color of the original work. Therefore, the existing display technology cannot meet the interactive needs of art color teaching, artistic color teaching, color communication, online teaching, e-commerce, etc. through display devices.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to overcome the above-mentioned defects in the prior art, and to propose an image display adjustment method, device, display device and storage medium. The present invention can eliminate or weaken the inconsistent display effect of the same work caused by the difference of the display devices. phenomenon, restore the real image.

The present invention adopts following technical scheme:

In one aspect, an image display adjustment method includes:

Get the input original image, and get the RGBA value of each pixel in the original image;

Parameter adjustment is performed on the RGBA value of the pixel to generate a new RGBA value; wherein, the adjusted parameters include one or more of brightness, contrast, saturation and picture color temperature;

Generate a new image based on the new RGBA values.

Preferably, the method for adjusting the RGBA value of a pixel includes a matrix operation method, specifically, using a 4*5 color matrix M to perform a matrix operation on the RGBA value of the original pixel to obtain a new R1G1B1A1 value, as follows:

Among them, the values of a, b, c, d, and e in the first row are used to determine the red R1 in the new color value; the values of f, g, h, i, and j in the second row are used to determine the new color. The green G1 in the value; the values of k, l, m, n, o in the third row are used to determine the blue B1 in the new color value; the values of p, q, r, s, t in the fourth row are used to determine the transparency A1 in the new color value; the values of e, j, o, and t in the fifth column are used to determine the offset in each component, that is, the offset.

Preferably, the acquisition method of the color matrix M includes:

Obtain the adjusted brightness and contrast parameters, and obtain a 4*5 color matrix M1 based on the adjusted brightness and contrast parameters;

Obtain the adjusted saturation parameter, and obtain a 4*5 color matrix M2 based on the adjusted saturation parameter;

Obtain the adjusted picture color temperature parameters, and obtain a 4*5 color matrix M3 based on the adjusted picture color temperature parameters;

The color matrix M is obtained by performing matrix mixing processing on the color matrix M1 , the color matrix M2 and the color matrix M3 by the matrix superposition method.

Preferably, the color matrix M1 is represented as follows:

brightness表示调整后的亮度值；contrast表示调整后的对比度值。Among them, e1=j1=o1=127.5*(1+B)-127.5*(1-B)*k1; a1=m1=g1=k1;

brightness represents the adjusted brightness value; contrast represents the adjusted contrast value.

Preferably, the color matrix M2 is represented as follows:

Wherein, sat represents the adjusted saturation value, r2=0.213*(1-sat); g2=0.715*(1-sat); b2=0.072*(1-sat).

Preferably, the color matrix M3 is represented as follows:

MAX＝max(r3,g3,b3)；MIN＝min(r3,g3,b3)；画面色温参数包括r3、g3和b3，r3、g3和b3分别表示调整后的R、G、B参数值。in,

MAX=max(r3, g3, b3); MIN=min(r3, g3, b3); the picture color temperature parameters include r3, g3 and b3, r3, g3 and b3 respectively represent the adjusted R, G, B parameter values.

Preferably, after generating the new RGBA value, the method further includes:

Receive the adjustment to Gamma, obtain the adjusted Gamma value, and perform Gamma correction on the new RGBA.

In another aspect, an image display adjustment device includes:

The original image acquisition module is used to acquire the input original image and obtain the RGBA value of each pixel in the original image;

The image adjustment module is used to adjust the parameters of the RGBA value of the pixel to generate a new RGBA value; wherein, the adjusted parameters include one or more of brightness, contrast, saturation and picture color temperature;

New image generation module for generating new images based on new RGBA values.

In yet another aspect, a display device includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the image display adjustment method when the processor executes the computer program.

In yet another aspect, a computer-readable storage medium having a computer program stored thereon, the computer program implementing the steps of the image display adjustment method when executed by a processor.

As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects:

(1) The present invention obtains an image including a new RGBA value by adjusting the parameters of the RGBA value of the original image pixel point. The new image can eliminate or weaken the inconsistent display effect of the same work caused by the difference of the display equipment. Real images, meet the requirements of the color authenticity of image display in the fields of art and fine arts, and achieve high color reproduction;

(2) The present invention realizes the adjustment of the color matrix in the matrix operation method by adjusting one or more of brightness, contrast, saturation and picture color temperature, and realizes the fusion of each color matrix through matrix superposition, thereby realizing RGBA data. The adjustment is simple, convenient and intuitive;

(3) In order to further eliminate the display difference caused by different display screens of the equipment, the present invention further performs Gamma correction, specifically by performing exponentiation on the pixel RGB values of the image, so as to adjust the gamma value to adjust the gray value in the image.

The above description is only an overview of the technical solution of the present invention, in order to be able to understand the technical means of the present invention more clearly, so that it can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and easy It is understood that specific embodiments of the present invention are listed below.

The above and other objects, advantages and features of the present invention will be more apparent to those skilled in the art from the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

1 is a flowchart of an image adjustment method according to an embodiment of the present invention;

2 is a schematic interface diagram of image adjustment according to an embodiment of the present invention;

3 is a structural block diagram of an image display adjustment apparatus according to an embodiment of the present invention;

FIG. 4 is an internal structure diagram of a display device according to an embodiment of the present invention.

Detailed ways

The present invention will be further described below through specific embodiments.

Referring to Fig. 1, an image display adjustment method of the present invention includes:

S101, obtain the input original image, and obtain the RGBA value of each pixel in the original image;

S102, performing parameter adjustment on the RGBA value of the pixel to generate a new RGBA value; wherein, the adjusted parameters include one or more of brightness, contrast, saturation, and picture color temperature;

S103, generate a new image according to the new RGBA value.

Specifically, an image display adjustment method of the present invention further includes:

S104, determine whether the display effect of the new image meets the requirements, and if so, stop parameter adjustment; if not, repeat the parameter adjustment step for the RGBA value of the pixel.

It should be noted that the input original image may be an image obtained by directly photographing a work through a display device, an image that has been stored in the display device, or an image obtained in other ways, which is not specifically described in this embodiment. limit.

Further, the method for adjusting the RGBA value of a pixel includes a matrix operation method, specifically, using a 4*5 color matrix M to perform a matrix operation on the RGBA value of the original pixel to obtain a new R1G1B1A1 value, as follows:

Among them, the values of a, b, c, d, and e in the first row are used to determine the red R1 in the new color value; the values of f, g, h, i, and j in the second row are used to determine the new color. The green G1 in the value; the values of k, l, m, n, o in the third row are used to determine the blue B1 in the new color value; the values of p, q, r, s, t in the fourth row are used to determine the transparency A1 in the new color value; the values of e, j, o, and t in the fifth column are used to determine the offset in each component, that is, the offset. Therefore, it is only necessary to modify the data of the color matrix M to change the display of the original picture.

Of course, the method for adjusting the RGBA value of the pixel point may also include other methods, and is not limited to the matrix operation method.

Further, the acquisition method of the above-mentioned color matrix M includes:

Obtain the adjusted brightness and contrast parameters, and obtain a 4*5 color matrix M1 based on the adjusted brightness and contrast parameters;

Obtain the adjusted saturation parameter, and obtain a 4*5 color matrix M2 based on the adjusted saturation parameter;

Obtain the adjusted picture color temperature parameters, and obtain a 4*5 color matrix M3 based on the adjusted picture color temperature parameters;

The color matrix M is obtained by performing matrix mixing processing on the color matrix M1 , the color matrix M2 and the color matrix M3 by the matrix superposition method.

Specifically, the parameter adjustment method can be implemented through interface input or by adjusting the slider bar. The present invention is not specifically limited. Referring to FIG. 2 , taking the modification of the slider as an example, the corresponding effect of quick adjustment can be achieved by sliding the corresponding slider through the interface.

Further, the color matrix M1 (a common color matrix for brightness and contrast) is represented as follows:

By adjusting the brightness, the values of e1, j1 and o1 in the matrix are correspondingly modified, and the value of RGB can be increased or decreased.

Corresponding to the slider of the brightness bar in the example image, take the brightness of 50 corresponding to the RGB value of the original pixel, and set the adjustment range to 0 to 100 as an example.

To adjust the contrast, a1, g1 and m1 in the matrix are correspondingly modified, and the RGB value is changed in multiples to achieve the effect of adjusting the contrast.

Corresponding to the slider in the contrast column of the example image, take the contrast of 50 corresponding to the RGB value of the original pixel, and set the adjustment range to 0 to 100 as an example.

Use the following methods to pass in the brightness and contrast adjustment parameters and the RGB value of the image pixel to get the adjusted new RGB value:

Among them, V _int is the RGB value of the original image, V _out is the adjusted output RGB value; brightness is the value of the slider corresponding to the brightness bar of the example image, ranging from 0 to 100; contrast is the slider corresponding to the contrast bar of the example image The value of , the value range is 0～100;

Converted to the corresponding parameters in the color matrix are:

e1=j1=o1=127.5*(1+B)-127.5*(1-B)*k1

a1=m1=g1=k1.

Further, the color matrix M2 (matrix for adjusting saturation) is represented as follows:

Wherein, sat represents the adjusted saturation value, r2=0.213*(1-sat); g2=0.715*(1-sat); b2=0.072*(1-sat).

That is, the values of the abc, fgh and klm positions in the matrix M1 are set respectively, and the ratio of the corresponding RGB values is changed by the color matrix algorithm.

Corresponding to the slider of the saturation bar in the example image, take the saturation of 100% corresponding to the RGB value of the original pixel, and set the adjustment range to 90% to 110% as an example, the value range of sat is 90% to 110%, and its value corresponds to The specific value of the slider.

Further, the color matrix M3 is represented as follows:

The color matrix adjusts the color temperature of the picture by fine-tuning the values of R, G, and B.

MAX＝max(r3,g3,b3)；MIN＝min(r3,g3,b3)；画面色温参数包括r3、g3和b3，r3、g3和b3分别表示调整后的R、G、B参数值。in,

MAX=max(r3, g3, b3); MIN=min(r3, g3, b3); the picture color temperature parameters include r3, g3 and b3, r3, g3 and b3 respectively represent the adjusted R, G, B parameter values.

Set the value of r3 corresponding to the slider in the blue-red column in Figure 2. Taking the value range of -5 to 5 as an example, the value of r3 ranges from -5 to 5, and its value corresponds to the specific value of the slider;

Set the value of g3 corresponding to the slider bar in the product-green column in Figure 2. Taking the value range of -5 to 5 as an example, the value range of g3 is -5 to 5, and its value corresponds to the specific value of the slider;

Set the value of b3 corresponding to the slider in the yellow-blue column in Figure 2. Taking the value range of -5 to 5 as an example, the value of b3 ranges from -5 to 5, and its value corresponds to the specific value of the slider.

Specifically, a new matrix can be obtained by mixing all the matrices that need to be superimposed by the matrix superposition algorithm, and then a new image can be obtained by the matrix algorithm. The superposition process is as follows:

Assuming that the color matrix after adjusting brightness and contrast is M1, the color matrix after adjusting saturation is M2, the color matrix after adjusting color temperature is M3, and the color matrix after mixing and superimposing is M, then:

M=setConcat(setConcat(M1, M2), M3)

It should be noted that, M1 and M3 can also be grounded first, and then superimposed with M2. That is, any two matrices of the color matrix M1, the color matrix M2 and the color matrix M3 are superimposed to obtain a new color matrix, and then the new color matrix is superimposed with the color matrix that has not been superimposed to obtain the color matrix M. Can. In addition, if the parameters are not adjusted, the corresponding color matrix does not need to be superimposed. For example, if the brightness and contrast are not adjusted, only the color matrix M2 and the color matrix M3 need to be superimposed.

The specific matrix superposition algorithm is as follows:

Further, due to differences in the display screen of the device, the image display effect cannot achieve the effect of restoring the real work, so Gamma correction needs to be performed. The adjustment of Gamma cannot be simply adjusted by the color matrix, and the pixel RGB value of the image needs to be exponentiated. To adjust the gamma value to adjust the gray value in the image.

details as follows:

V _out = V _int ^gamma

Among them, V _out is the pixel RGB output, and V _int is the new pixel RGB input after the above-mentioned matrix superposition processing. Corresponding to the slider in the Gamma column of the example image, set the value of gamma. Taking the value range of 0.7 to 1.3 as an example, the value of Gamma is in the range of 0.7 to 1.3, and its value corresponds to the specific value of the slider.

This embodiment is an image display adjustment method, which can eliminate or weaken the inconsistency of the display effect of the same work caused by the difference of the display devices, and restore the real image.

On the other hand, as shown in FIG. 3, an image display adjustment device includes:

The original image acquisition module 301 is used to acquire the input original image, and acquire the RGBA value of each pixel in the original image;

The image adjustment module 302 is configured to perform parameter adjustment on the RGBA value of the pixel to generate a new RGBA value; wherein, the adjusted parameters include one or more of brightness, contrast, saturation and picture color temperature;

The new image generation module 303 is configured to generate a new image according to the new RGBA value.

In this embodiment, the specific implementation and beneficial effects of the image display adjustment device are the same as the specific implementation and beneficial effects of the above-described display method, and will not be repeated.

In one embodiment, a display device includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

Get the input original image, and get the RGBA value of each pixel in the original image;

Parameter adjustment is performed on the RGBA value of the pixel to generate a new RGBA value; wherein, the adjusted parameters include one or more of brightness, contrast, saturation and picture color temperature;

Generate a new image based on the new RGBA values.

Referring to FIG. 4 , the display device includes a processor, a memory and a network interface connected through a system bus. Among them, the processor of the display device is used to provide computing and control capabilities. The memory of the display device includes a non-volatile storage medium and an internal memory. The nonvolatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the execution of the operating system and computer programs in the non-volatile storage medium. The network interface of the display device is used to communicate with an external terminal through a network connection. The computer program implements a text similarity calculation method when executed by the processor.

Those skilled in the art can understand that the structure shown in FIG. 4 is only a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the display device to which the solution of the present application is applied. The specific display device may be Include more or fewer components than shown in the figures, or combine certain components, or have a different arrangement of components.

In one embodiment, a computer-readable storage medium is provided on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

Get the input original image, and get the RGBA value of each pixel in the original image;

Parameter adjustment is performed on the RGBA value of the pixel to generate a new RGBA value; wherein, the adjusted parameters include one or more of brightness, contrast, saturation and picture color temperature;

Generate a new image based on the new RGBA values.

Finally, it should also be noted that in this document, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply these entities or that there is any such actual relationship or sequence between operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. In addition, the descriptions of steps such as "S101", "S102", etc. are only for the convenience of description, and do not represent the actual execution order.

Although preferred embodiments of the present invention have been described, additional changes and modifications to these embodiments may occur to those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be construed to include the preferred embodiment and all changes and modifications that fall within the scope of the present invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (10)

1. an image display adjustment method, is characterized in that, comprises: Get the input original image, and get the RGBA value of each pixel in the original image; Parameter adjustment is performed on the RGBA value of the pixel to generate a new RGBA value; wherein, the adjusted parameters include one or more of brightness, contrast, saturation and picture color temperature; Generate a new image based on the new RGBA values. 2. image display adjustment method according to claim 1, is characterized in that, the method for the adjustment of the RGBA value of pixel comprises matrix arithmetic method, and is specifically to adopt a 4*5 color matrix M to come to the RGBA value of original pixel Perform matrix operations to get new R1G1B1A1 values, as follows:

Among them, the values of a, b, c, d, and e in the first row are used to determine the red R1 in the new color value; the values of f, g, h, i, and j in the second row are used to determine the new color. The green G1 in the value; the values of k, l, m, n, o in the third row are used to determine the blue B1 in the new color value; the values of p, q, r, s, t in the fourth row are used to determine the transparency A1 in the new color value; the values of e, j, o, and t in the fifth column are used to determine the offset in each component, that is, the offset. 3. The image display adjustment method according to claim 2, wherein the acquisition method of the color matrix M comprises: Obtain the adjusted brightness and contrast parameters, and obtain a 4*5 color matrix M1 based on the adjusted brightness and contrast parameters; Obtain the adjusted saturation parameter, and obtain a 4*5 color matrix M2 based on the adjusted saturation parameter; Obtain the adjusted picture color temperature parameters, and obtain a 4*5 color matrix M3 based on the adjusted picture color temperature parameters; The color matrix M is obtained by performing matrix mixing processing on the color matrix M1 , the color matrix M2 and the color matrix M3 by the matrix superposition method. 4. The image display adjustment method according to claim 3, wherein the color matrix M1 is represented as follows:

Among them, e1=j1=o1=127.5*(1+B)-127.5*(1-B)*k1; a1=m1=g1=k1;

brightness represents the adjusted brightness value; contrast represents the adjusted contrast value. 5. The image display adjustment method according to claim 3, wherein the color matrix M2 is represented as follows:

Wherein, sat represents the adjusted saturation value, r2=0.213*(1-sat); g2=0.715*(1-sat); b2=0.072*(1-sat). 6. The image display adjustment method according to claim 3, wherein the color matrix M3 is represented as follows:

in,

MAX=max(r3, g3, b3); MIN=min(r3, g3, b3); the picture color temperature parameters include r3, g3 and b3, r3, g3 and b3 respectively represent the adjusted R, G, B parameter values. 7. The image display adjustment method according to claim 1, characterized in that, after generating the new RGBA value, further comprising: Receive the adjustment to Gamma, obtain the adjusted Gamma value, and perform Gamma correction on the new RGBA. 8. An image display adjustment device, comprising: The original image acquisition module is used to acquire the input original image and obtain the RGBA value of each pixel in the original image; The image adjustment module is used to adjust the parameters of the RGBA value of the pixel to generate a new RGBA value; wherein, the adjusted parameters include one or more of brightness, contrast, saturation and picture color temperature; New image generation module for generating new images based on new RGBA values. 9. A display device, comprising a memory and a processor, wherein the memory stores a computer program, wherein the processor implements the steps of the method according to any one of claims 1 to 7 when the processor executes the computer program . 10. A computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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