CN112558907B - Splicing wall color uniformity and consistency control method based on camera - Google Patents
Splicing wall color uniformity and consistency control method based on camera Download PDFInfo
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Abstract
The invention provides a camera-based method for controlling color uniformity and consistency of a spliced wall, which comprises the following steps: according to a reference display screen determining rule, acquiring a reference display screen from a plurality of display screens of the spliced wall, and taking other display screens except the reference display screen in the spliced wall as target display screens; dividing the reference display screen into a plurality of equally divided display areas, and dividing the target display screen into a plurality of equally divided display areas; the number of the equal division display areas obtained by dividing the reference display screen is larger than that of the equal division display areas obtained by dividing the target display screen; aiming at the reference display screen, acquiring color information of each equally divided display area in the reference display screen; and determining the colorimetric value and the brightness value of each display area in the target display screen according to the colorimetric value and the brightness value of each equally divided display area in the reference display screen.
Description
Technical Field
The invention provides a camera-based method for controlling color uniformity and consistency of a spliced wall, and belongs to the technical field of video display processing.
Background
The spliced wall is widely applied to dispatching centers, command centers, monitoring centers and sports, entertainment and teaching equipment in various industries due to unique high resolution and high brightness characteristics; the spliced wall is used as a professional display technology branch and has a large combined space, namely, one spliced wall consists of a plurality of display screens and can be spliced by small screens or large screens; the single-screen splicing can be realized in a one-to-one mode, and the whole screen splicing can be realized in a pair of MxN modes. However, because the spliced wall is formed by splicing a plurality of large screens, especially, when the spliced wall is applied to the situation that video images are collected by a camera and transmitted to the spliced wall, the problems of uneven brightness and color and inconsistency of the spliced wall often occur.
Disclosure of Invention
The invention provides a camera-based spliced wall color uniformity and consistency control method, which is used for solving the problems of non-uniform and inconsistent colors and brightness of the existing spliced wall:
the invention provides a camera-based spliced wall color uniformity and consistency control method, which comprises the following steps:
according to a reference display screen determining rule, acquiring a reference display screen from a plurality of display screens of the spliced wall, and taking other display screens except the reference display screen in the spliced wall as target display screens;
dividing the reference display screen into a plurality of equally divided display areas, and dividing the target display screen into a plurality of equally divided display areas; the number of the equal division display areas obtained by dividing the reference display screen is larger than that of the equal division display areas obtained by dividing the target display screen;
aiming at the reference display screen, acquiring color information of each equally divided display area in the reference display screen;
and determining the colorimetric value and the brightness value of each display area in the target display screen according to the colorimetric value and the brightness value of each equally divided display area in the reference display screen.
Further, the reference display screen determination rule includes:
when the spliced wall is formed by splicing a plurality of display screens in a line, determining that the first display screen above the spliced wall is a reference display screen from top to bottom;
when the spliced wall is formed by splicing a row of a plurality of display screens, determining that the first display screen on the left side is a reference display screen according to the sequence from left to right;
when the spliced wall is formed by splicing 2 multiplied by 2 display screens, determining a first display screen in a first row as a reference display screen;
when the spliced wall is formed by splicing a plurality of columns and a plurality of rows of display screens of which the number of the rows and the columns is more than 2, the reference display screen is determined according to the center principle.
Further, the central principle includes:
when the number of the display screens of the spliced wall is odd rows multiplied by odd columns, determining the display screen at the central position as a reference display screen;
when the number of the display screens of the spliced wall is even rows multiplied by even columns, 2 multiplied by 2 display screens at the central position are taken as reference display screens;
when the number of the display screens of the spliced wall is even rows multiplied by odd columns, taking 1 multiplied by 2 display screens at the central position as a reference display screen;
when the number of the display screens of the spliced wall is odd columns multiplied by even rows, 2 multiplied by 1 display screens at the center position are taken as reference display screens.
Further, the reference display screen is divided into 4 × 4 divided display areas, and the target display screen is divided into 3 × 3 divided display areas.
Further, for the reference display screen, acquiring color information of each equally divided display area in the reference display screen, including:
aiming at the reference display screen, acquiring a chromatic value of each equally divided display area in the reference display screen;
and aiming at the reference display screen, acquiring the brightness value of each equally divided display area in the reference display screen.
Further, according to the colorimetric value and the brightness value of each equally divided display area in the reference display screen, determining the colorimetric value and the brightness value of each display area in the target display screen, including;
when the reference display screen is one display screen, adjusting the colorimetric value and the brightness value of each display area in the target display screen by taking the colorimetric value and the brightness value of each equally divided display area of the reference display screen as a standard;
and when the reference display screen is a plurality of display screens, adjusting the colorimetric value and the brightness value of each display area in the target display screen by using the colorimetric value and the brightness value of each equally divided display area in each reference display screen.
Further, when the reference display screen is a display screen, adjusting the chromaticity value and the brightness value of each display area in the target display screen by using the chromaticity value and the brightness value of each equally divided display area of the reference display screen as a standard, including:
respectively carrying out digital sequential marking on 4 multiplied by 4 equally divided display areas in the reference display screen to obtain a reference display screen matrix as follows:
wherein, C11……C44The number mark corresponding to each equal division area in the reference display screen is marked;
respectively carrying out digital sequential marking on 3 multiplied by 3 equally divided display areas in a target display screen to obtain a target display screen matrix as follows:
wherein M is11……M33Marking the number corresponding to each equally divided area in the target display screen;
determining a corresponding relation between each equally divided display area of the target display screen and each equally divided display area in the reference display screen, wherein the corresponding number ratio of each equally divided display area of the target display screen to each equally divided display area in the reference display screen is as follows: 1: 4;
calculating and acquiring a chromatic value and a brightness value of each equally divided display area corresponding to each target display screen by utilizing a first chromatic value determination model and a first brightness value determination model according to the corresponding relation between each equally divided display area of the target display screen and each equally divided display area in a reference display screen, wherein the first chromatic value determination model and the first brightness value determination model are as follows:
wherein S isa1Representing a colorimetric value obtained by the first colorimetric value determination model; siExpressing the colorimetric values of ith display areas corresponding to four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen; smaxRepresenting the maximum value of the chromatic values in four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen; sminRepresenting the minimum value of the chromatic values in four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen; alpha is alpha1Representing the adjustment coefficient of the chromaticity value, alpha1The value range of (A) is 0.52-0.61;
wherein L isa1Representing a luminance value obtained by the first colorimetric value determination model; l isiThe brightness value of the ith display area corresponding to four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen is represented; l ismaxThe maximum value of the brightness values in four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen is represented; l isminRepresenting the minimum value of the brightness values in four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen; beta is a1Representing the adjustment coefficient of the chromaticity value, beta1The value range of (A) is 0.63-0.79;
and respectively adjusting the brightness value and the chroma value of each equal display area in the target display screen in real time by taking the chroma value and the brightness value respectively obtained by the first chroma value determination model and the first brightness value determination model as a target chroma value and a target brightness value, so that the brightness value and the chroma value of each equal display area in the target display screen are consistent with the target chroma value and the target brightness value.
Further, the corresponding relation between each equally divided display area of the target display screen and each equally divided display area of the reference display screen is as follows:
M11corresponds to C11、C12、C21And C22；M12Corresponds to C12、C13、C22And C23；M13Corresponds to C13、C14、C23And C24；
M21Corresponds to C21、C22、C31And C32；M22Corresponds to C22、C23、C32And C33；M23Corresponds to C23、C24、C33And C34；
M31Corresponds to C31、C32、C41And C42；M32Corresponds to C32、C33、C42And C43；M33Corresponds to C33、C34、C43And C44。
Further, when the reference display screen is a plurality of display screens, adjusting the chromaticity value and the brightness value of each display area in the target display screen by using the chromaticity value and the brightness value of each equally divided display area in each reference display screen includes:
when the reference display screen is a plurality of display screens, acquiring a chromatic value and a brightness value of each equally divided display area in each reference display screen;
obtaining a reference colorimetric value and a reference brightness value through a reference calculation model according to the colorimetric value and the brightness value of each equally divided display area in each reference display screen, wherein the reference colorimetric value and the reference brightness value respectively correspond to the equally divided display areas of the reference display screen, and the reference calculation model is as follows:
wherein S iscRepresenting a reference colorimetric value corresponding to the position of a display area corresponding to the digital mark of the reference display screen matrix in each reference display screen obtained by the reference calculation model; l iscThe reference brightness value corresponding to the position of the display area corresponding to the digital mark of the reference display screen matrix in each reference display screen obtained by the reference calculation model is represented; skExpressing the colorimetric values corresponding to the display area positions corresponding to the numerical marks of the reference display screen matrix of the kth reference display screen; l iskThe corresponding brightness value of the display area position corresponding to the number mark of the reference display screen matrix of the kth reference display screen is represented; n represents the number of reference display screens; smax1The maximum chromaticity value of a display position corresponding to the number mark of the same reference display screen matrix in the n reference display screens is represented; l ismax1Representing the same reference display matrix of n reference displaysThe brightness maximum value of the display position corresponding to the numerical mark of (1); smin1Representing the chromaticity minimum value of a display position corresponding to the number mark of the same reference display screen matrix in the n reference display screens; l ismin1The minimum brightness value of the display position corresponding to the number mark of the matrix of the same reference display screen in the n reference display screens is represented;
obtaining a reference parameter matrix A according to the reference luminance value and the reference chromatic value, wherein the reference parameter matrix A is as follows:
wherein A is11……A44The digital mark is used for indicating the reference colorimetric value and the reference brightness value which are obtained correspondingly by each equally divided display area of each reference display screen and obtained by utilizing a plurality of reference display screens;
determining the corresponding relation between each equally divided display area of the target display screen and the number labels of the reference colorimetric values and the reference brightness values in the reference parameter matrix A by using the reference parameter matrix A, wherein the corresponding number ratio of each equally divided display area of the target display screen to the reference colorimetric values and the reference brightness values is as follows: 1: 4;
calculating and obtaining the colorimetric value and the brightness value of each equal division display area corresponding to each target display screen by utilizing a second colorimetric value determination model and a second brightness value determination model according to the corresponding relation between each equal division display area of the target display screen and the reference colorimetric value and the number label of the reference brightness value in the reference parameter matrix A;
and respectively adjusting the brightness value and the chroma value of each equal display area in the target display screen in real time by taking the chroma value and the brightness value respectively obtained by the second chroma value determination model and the second brightness value determination model as a target chroma value and a target brightness value, so that the brightness value and the chroma value of each equal display area in the target display screen are consistent with the target chroma value and the target brightness value.
Further, wherein the second chrominance value determination model and the second luminance value determination model are as follows:
wherein S isa2Representing a colorimetric value obtained by the second colorimetric value determination model; smRepresenting the colorimetric value of the mth reference colorimetric value corresponding to the four reference colorimetric values corresponding to each equally divided display area of the target display screen; sm-maxRepresenting the maximum value of the chromatic value in the four reference chromatic values corresponding to each equally divided display area of the target display screen; sm-minRepresenting the minimum value of the colorimetric values in the four reference colorimetric values corresponding to each equally divided display area of the target display screen; alpha is alpha2Representing the second chrominance value adjustment coefficient, alpha2The value range of (A) is 0.62-0.78;
wherein L isa2Representing a luminance value obtained by the second colorimetric value determination model; l ismThe luminance value of the mth reference luminance value corresponding to the four reference colorimetric values corresponding to each equally divided display area of the target display screen is represented; l ism-maxRepresenting the maximum value of the brightness values in the four reference brightness values corresponding to each equally divided display area of the target display screen; l ism-minRepresenting the minimum value of the brightness values in the four reference brightness values corresponding to each equally divided display area of the target display screen; beta is a2Indicating a second luminance value adjustment coefficient, beta2The value range of (A) is 0.74-0.83.
Wherein, the corresponding relation between each equally divided display area of the target display screen and each equally divided display area in the reference display screen is as follows:
M11corresponds to A11、A12、A21And A22；M12Corresponds to A12、A13、A22And A23；M13Corresponds to A13、A14、A23And A24；
M21Corresponds to A21、A22、A31And A32；M22Corresponds to A22、A23、A32And A33；M23Corresponds to A23、A24、A33And A34；
M31Corresponds to A31、A32、A41And A42；M32Corresponds to A32、A33、A42And A43；M33Corresponds to A33、A34、A43And A44。
The invention has the beneficial effects that:
according to the camera-based spliced wall color uniformity and consistency control method, the reference display screen and the target display screen are set, the display areas of the reference display screen and the target display screen are divided, and the corresponding relation between the display areas of the reference display screen and the target display screen is set, so that the uniformity and consistency of color information of the spliced wall can be effectively improved, meanwhile, the adjustment efficiency of the color uniformity and consistency of each display screen of the spliced wall can be effectively improved, and the generation rate of the color information nonuniformity and inconsistency of the color of each display screen of the spliced wall in the visual field of a viewer is reduced. Effectively improve the comfort level of splicing wall viewer's visual experience.
Drawings
FIG. 1 is a flow chart of the method of the present invention;
FIG. 2 is a corresponding relationship between an equally divided display area of a reference display screen and an equally divided display area of a target display screen according to the present invention;
FIG. 3 is a diagram illustrating the correspondence between the reference chrominance values and the reference luminance values and the equally divided display areas of the target display screen according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The invention provides a camera-based spliced wall color uniformity and consistency control method, which is used for solving the problems of non-uniform and inconsistent colors and brightness of the existing spliced wall:
the invention provides a camera-based method for controlling color uniformity and consistency of a spliced wall, which comprises the following steps of:
s1, acquiring a reference display screen from the plurality of display screens of the spliced wall according to a reference display screen determining rule, and taking other display screens except the reference display screen in the spliced wall as target display screens; the reference display screen is divided into 4 × 4 equally divided display areas, and the target display screen is divided into 3 × 3 equally divided display areas.
S2, dividing the reference display screen into a plurality of equally divided display areas, and dividing the target display screen into a plurality of equally divided display areas; the number of the equal display areas obtained by dividing the reference display screen is larger than that of the equal display areas obtained by dividing the target display screen;
s3, aiming at the reference display screen, acquiring color information of each equally divided display area in the reference display screen; the acquiring, for the reference display screen, color information of each equally divided display area in the reference display screen includes:
s301, aiming at the reference display screen, obtaining a chromatic value of each equally divided display area in the reference display screen;
s302, aiming at the reference display screen, acquiring the brightness value of each equally divided display area in the reference display screen.
And S4, determining the colorimetric value and the brightness value of each display area in the target display screen according to the colorimetric value and the brightness value of each equally divided display area in the reference display screen.
The working principle of the technical scheme is as follows: firstly, according to a reference display screen determining rule, acquiring a reference display screen from a plurality of display screens of the spliced wall, and taking other display screens except the reference display screen in the spliced wall as target display screens; then, dividing the reference display screen into a plurality of equally divided display areas, and dividing the target display screen into a plurality of equally divided display areas; the number of the equal division display areas obtained by dividing the reference display screen is larger than that of the equal division display areas obtained by dividing the target display screen; then, aiming at the reference display screen, acquiring color information of each equally divided display area in the reference display screen; and then, determining the colorimetric value and the brightness value of each display area in the target display screen according to the colorimetric value and the brightness value of each equally divided display area in the reference display screen.
The effect of the above technical scheme is as follows: the display area is divided by setting the reference display screen and the target display screen and the reference display screen and the target display screen, and the uniformity and consistency of the color information of the splicing wall can be effectively improved by setting the corresponding relation between the reference display screen and the display area of the target display screen, meanwhile, the adjustment efficiency of the color uniformity and consistency of each display screen of the splicing wall can be effectively improved, and the generation rate of the color information nonuniformity and inconsistency of the color of each display screen of the splicing wall in the visual field of a viewer is reduced. Effectively improve the comfort level of splicing wall viewer's visual experience. Meanwhile, by dividing the number of the equally divided display areas of the reference display screen and the target display screen, the difference of color information among the display screens of the subsequent spliced wall can be greatly improved, and the color uniformity and consistency among the display screens of the spliced wall are further improved.
In one embodiment of the present invention, the reference display screen determination rule includes:
when the spliced wall is formed by splicing a plurality of display screens in a line, determining that the first display screen above the spliced wall is a reference display screen from top to bottom;
when the spliced wall is formed by splicing a row of a plurality of display screens, determining that the first display screen on the left side is a reference display screen according to the sequence from left to right;
when the spliced wall is formed by splicing 2 multiplied by 2 display screens, determining a first display screen in a first row as a reference display screen;
when the spliced wall is formed by splicing a plurality of columns and a plurality of rows of display screens of which the number of the rows and the columns is more than 2, the reference display screen is determined according to the center principle.
Wherein the central principle comprises:
when the number of the display screens of the spliced wall is odd rows multiplied by odd columns, determining the display screen at the central position as a reference display screen;
when the number of the display screens of the spliced wall is even rows multiplied by even columns, 2 multiplied by 2 display screens at the central position are taken as reference display screens;
when the number of the display screens of the spliced wall is even rows multiplied by odd columns, taking 1 multiplied by 2 display screens at the central position as a reference display screen;
when the number of the display screens of the spliced wall is odd columns multiplied by even rows, 2 multiplied by 1 display screens at the center position are taken as reference display screens.
The working principle of the technical scheme is as follows: and determining a parameter display screen and a target display screen in each display screen in the spliced wall according to the rules.
The effect of the above technical scheme is as follows: the reference display screen is confirmed for the basis through the display screen that above-mentioned mode obtained, can effectively improve the homogeneity and the uniformity of the whole colour of concatenation wall, compare in the reference display screen who obtains with other rules, and the reference display screen that this embodiment was confirmed can guarantee that the concatenation wall sets up with what angle (for example, hang on the wall, throw on the sky canopy or set up on the floor), and the homogeneous colour homogeneity and the uniformity that all can improve the whole audience fields of view that have in each angle position of concatenation wall. The adjustment efficiency of color information uniformity adjustment is improved to a great extent, and manpower, material resources and time resources consumed in the adjustment process are saved.
According to the colorimetric value and the brightness value of each equally divided display area in the reference display screen, determining the colorimetric value and the brightness value of each display area in the target display screen, including;
s401, when the reference display screen is one display screen, adjusting the chromatic value and the brightness value of each display area in the target display screen by taking the chromatic value and the brightness value of each equally divided display area of the reference display screen as a standard;
s402, when the reference display screen is a plurality of display screens, adjusting the colorimetric value and the brightness value of each display area in the target display screen by using the colorimetric value and the brightness value of each equally divided display area in each reference display screen.
When the reference display screen is a display screen, adjusting the colorimetric value and the luminance value of each display area in the target display screen by taking the colorimetric value and the luminance value of each equally divided display area of the reference display screen as a standard, including:
s4011, respectively marking 4 × 4 equally divided display areas in the reference display screen in a digital sequence manner, and obtaining a reference display screen matrix as follows:
wherein, C11……C44The number mark corresponding to each equal division area in the reference display screen is marked;
s4012, respectively carrying out digital sequential marking on 3 × 3 equally divided display areas in the target display screen, and obtaining a target display screen matrix as follows:
wherein M is11……M33Marking the number corresponding to each equally divided area in the target display screen;
s4013, determining a corresponding relation between each equally divided display area of the target display screen and each equally divided display area in the reference display screen, wherein the corresponding number ratio of each equally divided display area of the target display screen to each equally divided display area in the reference display screen is as follows: 1: 4;
s4014, calculating and obtaining a chromaticity value and a brightness value of each equal division display area in each target display screen by using a first chromaticity value determination model and a first brightness value determination model according to a corresponding relationship between each equal division display area in the target display screen and each equal division display area in the reference display screen, where the first chromaticity value determination model and the first brightness value determination model are as follows:
wherein S isa1Representing a colorimetric value obtained by the first colorimetric value determination model; siExpressing the colorimetric values of ith display areas corresponding to four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen; smaxRepresenting the maximum value of the chromatic values in four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen; sminRepresenting the minimum value of the chromatic values in four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen; alpha is alpha1Representing the adjustment coefficient of the chromaticity value, alpha1The value range of (A) is 0.52-0.61;
wherein L isa1Representing a luminance value obtained by the first colorimetric value determination model; l isiThe brightness value of the ith display area corresponding to four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen is represented; l ismaxThe maximum value of the brightness values in four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen is represented; l isminRepresenting the minimum value of the brightness values in four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen; beta is a1Representing the adjustment coefficient of the chromaticity value, beta1The value range of (A) is 0.63-0.79;
s4015, taking the colorimetric values and the luminance values respectively obtained by the first colorimetric value determining model and the first luminance value determining model as target colorimetric values and target luminance values to respectively adjust the luminance values and the colorimetric values of the equal display areas in the target display screen in real time, so that the luminance values and the colorimetric values of the equal display areas in the target display screen are consistent with the target colorimetric values and the target luminance values.
Wherein, the corresponding relation between each equally divided display area of the target display screen and each equally divided display area in the reference display screen is as follows:
M11corresponds to C11、C12、C21And C22；M12Corresponds to C12、C13、C22And C23；M13Corresponds to C13、C14、C23And C24；
M21Corresponds to C21、C22、C31And C32；M22Corresponds to C22、C23、C32And C33；M23Corresponds to C23、C24、C33And C34；
M31Corresponds to C31、C32、C41And C42；M32Corresponds to C32、C33、C42And C43；M33Corresponds to C33、C34、C43And C44。
The working principle of the technical scheme is as follows: firstly, when the reference display screen is a display screen, adjusting the colorimetric value and the brightness value of each display area in the target display screen by taking the colorimetric value and the brightness value of each equally divided display area of the reference display screen as a standard; then, when the reference display screen is a plurality of display screens, the colorimetric value and the brightness value of each display area in the target display screen are adjusted by using the colorimetric value and the brightness value of each equally divided display area in each reference display screen.
Specifically, when the reference display screen is a display screen, adjusting the colorimetric value and the luminance value of each display area in the target display screen by using the colorimetric value and the luminance value of each equally divided display area of the reference display screen as a standard includes:
first, for 4 in the reference display screen×Respectively carrying out digital sequential marking on the 4 equally divided display areas to obtain a reference display screen matrix; then, respectively carrying out digital sequential marking on 3 multiplied by 3 equally divided display areas in the target display screen to obtain a target display screen matrix; then, determining the corresponding relation between each equally divided display area of the target display screen and each equally divided display area in the reference display screen, wherein the corresponding number ratio of each equally divided display area of the target display screen to each equally divided display area in the reference display screen is as follows: 1: 4; then, calculating and acquiring a chromatic value and a brightness value of each equally divided display area corresponding to each target display screen by utilizing a first chromatic value determination model and a first brightness value determination model according to the corresponding relation between each equally divided display area of the target display screen and each equally divided display area in the reference display screen; and finally, respectively adjusting the brightness value and the chroma value of each equal display area in the target display screen in real time by taking the chroma value and the brightness value respectively obtained by the first chroma value determination model and the first brightness value determination model as a target chroma value and a target brightness value, so that the brightness value and the chroma value of each equal display area in the target display screen are consistent with the target chroma value and the target brightness value.
The effect of the above technical scheme is as follows: through the corresponding relation setting of the display area of the target display screen and the display area of the reference display screen, the spliced wall can be guaranteed to be arranged at any angle (for example, hung on a wall, thrown on a ceiling or arranged on a floor), and the uniform color uniformity and consistency of the whole spliced wall in the visual field of audiences in all angle directions can be improved. The adjustment efficiency of color information uniformity adjustment is improved to a great extent, and manpower, material resources and time resources consumed in the adjustment process are saved. Meanwhile, the adjustment target colorimetric values and brightness values of the display areas of the target display screen, which are obtained through the formula, can effectively improve the uniformity, consistency and balance between the colorimetric values and the brightness values of the adjusted target display screens of the spliced wall under the condition that the spliced wall structure takes one reference display screen as a reference, so that the display screens of the spliced wall can embody high-uniformity and consistency color information no matter which angle the display screens are watched.
In an embodiment of the present invention, when the reference display screen is a plurality of display screens, adjusting the chromaticity value and the luminance value of each display area in the target display screen by using the chromaticity value and the luminance value of each display area in each reference display screen includes:
s4021, when the reference display screen is a plurality of display screens, acquiring a chromatic value and a brightness value of each equally divided display area in each reference display screen;
s4022, acquiring a reference colorimetric value and a reference brightness value through a reference calculation model according to the colorimetric value and the brightness value of each equally divided display area in each reference display screen, wherein the reference colorimetric value and the reference brightness value respectively correspond to each equally divided display area of the reference display screen, and the reference calculation model is as follows:
wherein S iscRepresenting a reference colorimetric value corresponding to the position of a display area corresponding to the digital mark of the reference display screen matrix in each reference display screen obtained by the reference calculation model; l iscThe reference brightness value corresponding to the position of the display area corresponding to the digital mark of the reference display screen matrix in each reference display screen obtained by the reference calculation model is represented; skExpressing the colorimetric values corresponding to the display area positions corresponding to the numerical marks of the reference display screen matrix of the kth reference display screen; l iskReference representing the kth reference displayThe corresponding brightness value of the display area position corresponding to the digital mark of the display screen matrix; n represents the number of reference display screens; smax1The maximum chromaticity value of a display position corresponding to the number mark of the same reference display screen matrix in the n reference display screens is represented; l ismax1The maximum brightness value of the display position corresponding to the number mark of the matrix of the same reference display screen in the n reference display screens is represented; smin1Representing the chromaticity minimum value of a display position corresponding to the number mark of the same reference display screen matrix in the n reference display screens; l ismin1The minimum brightness value of the display position corresponding to the number mark of the matrix of the same reference display screen in the n reference display screens is represented;
s4023, acquiring a reference parameter matrix A according to the reference brightness value and the reference chromatic value, wherein the reference parameter matrix A is as follows:
wherein A is11……A44The digital mark is used for indicating the reference colorimetric value and the reference brightness value which are obtained correspondingly by each equally divided display area of each reference display screen and obtained by utilizing a plurality of reference display screens;
s4024, determining the corresponding relation between each equally divided display area of the target display screen and the numerical labels of the reference colorimetric values and the reference luminance values in the reference parameter matrix A by using the reference parameter matrix A, wherein the corresponding number ratios of each equally divided display area of the target display screen to the reference colorimetric values and the reference luminance values are as follows: 1: 4;
s4025, calculating and obtaining the chromatic value and the brightness value of each equal division display area corresponding to each target display screen by utilizing a second chromatic value determination model and a second brightness value determination model through the corresponding relation between each equal division display area of the target display screen and the reference chromatic value and the number label of the reference brightness value in the reference parameter matrix A;
s4026, taking the colorimetric values and the brightness values respectively obtained by the second colorimetric value determination model and the second brightness value determination model as target colorimetric values and target brightness values to respectively adjust the brightness values and the colorimetric values of the equal display areas in the target display screen in real time, so that the brightness values and the colorimetric values of the equal display areas in the target display screen are consistent with the target colorimetric values and the target brightness values.
Wherein the second chrominance value determination model and the second luminance value determination model are as follows:
wherein S isa2Representing a colorimetric value obtained by the second colorimetric value determination model; smRepresenting the colorimetric value of the mth reference colorimetric value corresponding to the four reference colorimetric values corresponding to each equally divided display area of the target display screen; sm-maxRepresenting the maximum value of the chromatic value in the four reference chromatic values corresponding to each equally divided display area of the target display screen; sm-minRepresenting the minimum value of the colorimetric values in the four reference colorimetric values corresponding to each equally divided display area of the target display screen; alpha is alpha2Representing the second chrominance value adjustment coefficient, alpha2The value range of (A) is 0.62-0.78;
wherein L isa2Representing a luminance value obtained by the second colorimetric value determination model; l ismThe luminance value of the mth reference luminance value corresponding to the four reference colorimetric values corresponding to each equally divided display area of the target display screen is represented; l ism-maxRepresenting the maximum value of the brightness values in the four reference brightness values corresponding to each equally divided display area of the target display screen; l ism-minRepresenting the minimum value of the brightness values in the four reference brightness values corresponding to each equally divided display area of the target display screen; beta is a2Indicating a second luminance value adjustment coefficient, beta2The value range of (A) is 0.74-0.83.
Wherein, the corresponding relation between each equally divided display area of the target display screen and each equally divided display area in the reference display screen is as follows:
M11corresponds to A11、A12、A21And A22；M12Corresponds to A12、A13、A22And A23；M13Corresponds to A13、A14、A23And A24；
M21Corresponds to A21、A22、A31And A32；M22Corresponds to A22、A23、A32And A33；M23Corresponds to A23、A24、A33And A34；
M31Corresponds to A31、A32、A41And A42；M32Corresponds to A32、A33、A42And A43；M33Corresponds to A33、A34、A43And A44。
The working principle of the technical scheme is as follows: firstly, when the reference display screen is a plurality of display screens, acquiring a chromatic value and a brightness value of each equally divided display area in each reference display screen; then, according to the colorimetric value and the brightness value of each equally divided display area in each reference display screen, obtaining a reference colorimetric value and a reference brightness value through a reference calculation model, wherein the reference colorimetric value and the reference brightness value respectively correspond to each equally divided display area of the reference display screen; then, acquiring a reference parameter matrix A according to the reference brightness value and the reference chromatic value; then, determining the corresponding relation between each equally divided display area of the target display screen and the number labels of the reference colorimetric values and the reference brightness values in the reference parameter matrix a by using the reference parameter matrix a, wherein the corresponding number ratio of each equally divided display area of the target display screen to the reference colorimetric values and the reference brightness values is as follows: 1: 4; then, calculating and acquiring a chromatic value and a brightness value of each equally divided display area corresponding to each target display screen by utilizing a second chromatic value determination model and a second brightness value determination model according to the corresponding relation between each equally divided display area of the target display screen and the reference chromatic value and the number label of the reference brightness value in the reference parameter matrix A; and finally, respectively adjusting the brightness value and the chroma value of each equal display area in the target display screen in real time by taking the chroma value and the brightness value respectively obtained by the second chroma value determination model and the second brightness value determination model as a target chroma value and a target brightness value, so that the brightness value and the chroma value of each equal display area in the target display screen are consistent with the target chroma value and the target brightness value.
The effect of the above technical scheme is as follows: through the corresponding relation setting of the display area of the target display screen and the display area of the reference display screen, the spliced wall can be guaranteed to be arranged at any angle (for example, hung on a wall, thrown on a ceiling or arranged on a floor), and the uniform color uniformity and consistency of the whole spliced wall in the visual field of audiences in all angle directions can be improved. The adjustment efficiency of color information uniformity adjustment is improved to a great extent, and manpower, material resources and time resources consumed in the adjustment process are saved. Meanwhile, the reference chromatic value, the reference brightness value, the adjustment target chromatic value and the adjustment target brightness value of each display area of the target display screen, which are obtained through the formula, can effectively improve the uniformity, consistency and balance between the chromatic value and the brightness value of each target display screen of the spliced wall after adjustment under the condition that the spliced wall is in a structure taking a plurality of reference display screens as reference, so that the color information with high uniformity and consistency can be embodied no matter at which angle each display screen of the spliced wall is watched.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such 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 such modifications and variations.
Claims (7)
1. The camera-based spliced wall color uniformity and consistency control method is characterized by comprising the following steps:
according to a reference display screen determining rule, acquiring a reference display screen from a plurality of display screens of the spliced wall, and taking other display screens except the reference display screen in the spliced wall as target display screens;
dividing the reference display screen into a plurality of equally divided display areas, and dividing the target display screen into a plurality of equally divided display areas; the number of the equal division display areas obtained by dividing the reference display screen is larger than that of the equal division display areas obtained by dividing the target display screen;
aiming at the reference display screen, acquiring color information of each equally divided display area in the reference display screen;
determining a chromatic value and a brightness value of each display area in the target display screen according to the chromatic value and the brightness value of each equally divided display area in the reference display screen;
aiming at the reference display screen, acquiring color information of each equally divided display area in the reference display screen, wherein the color information comprises the following steps:
aiming at the reference display screen, acquiring a chromatic value of each equally divided display area in the reference display screen;
aiming at the reference display screen, acquiring the brightness value of each equally divided display area in the reference display screen;
determining a chromatic value and a brightness value of each display area in the target display screen according to the chromatic value and the brightness value of each equally divided display area in the reference display screen;
when the reference display screen is one display screen, adjusting the colorimetric value and the brightness value of each display area in the target display screen by taking the colorimetric value and the brightness value of each equally divided display area of the reference display screen as a standard;
when the reference display screen is a plurality of display screens, adjusting the colorimetric value and the brightness value of each display area in the target display screen by using the colorimetric value and the brightness value of each equant display area in each reference display screen;
when the reference display screen is a display screen, adjusting the colorimetric value and the brightness value of each display area in the target display screen by taking the colorimetric value and the brightness value of each equally divided display area of the reference display screen as a standard, including:
respectively carrying out digital sequential marking on 4 multiplied by 4 equally divided display areas in the reference display screen to obtain a reference display screen matrix as follows:
wherein, C11……C44The number mark corresponding to each equal division area in the reference display screen is marked;
respectively carrying out digital sequential marking on 3 multiplied by 3 equally divided display areas in a target display screen to obtain a target display screen matrix as follows:
wherein M is11……M33Marking the number corresponding to each equally divided area in the target display screen;
determining a corresponding relation between each equally divided display area of the target display screen and each equally divided display area in the reference display screen, wherein the corresponding number ratio of each equally divided display area of the target display screen to each equally divided display area in the reference display screen is as follows: 1: 4;
calculating and acquiring a chromatic value and a brightness value of each equally divided display area corresponding to each target display screen by utilizing a first chromatic value determination model and a first brightness value determination model according to the corresponding relation between each equally divided display area of the target display screen and each equally divided display area in a reference display screen, wherein the first chromatic value determination model and the first brightness value determination model are as follows:
wherein S isa1Representing a colorimetric value obtained by the first colorimetric value determination model; siExpressing the colorimetric values of ith display areas corresponding to four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen; smaxRepresenting the maximum value of the chromatic values in four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen; sminRepresenting the minimum value of the chromatic values in four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen; alpha is alpha1Representing the adjustment coefficient of the chromaticity value, alpha1The value range of (A) is 0.52-0.61;
wherein L isa1Representing a luminance value obtained by the first colorimetric value determination model; l isiThe brightness value of the ith display area corresponding to four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen is represented; l ismaxThe maximum value of the brightness values in four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen is represented; l isminRepresenting the minimum value of the brightness values in four equally divided display areas in the reference display screen corresponding to each equally divided display area of the target display screen; beta is a1Representing the adjustment coefficient of the chromaticity value, beta1The value range of (A) is 0.63-0.79;
and respectively adjusting the brightness value and the chroma value of each equal display area in the target display screen in real time by taking the chroma value and the brightness value respectively obtained by the first chroma value determination model and the first brightness value determination model as a target chroma value and a target brightness value, so that the brightness value and the chroma value of each equal display area in the target display screen are consistent with the target chroma value and the target brightness value.
2. The method of claim 1, wherein determining the rule with reference to the display screen comprises:
when the spliced wall is formed by splicing a plurality of display screens in a line, determining that the first display screen above the spliced wall is a reference display screen from top to bottom;
when the spliced wall is formed by splicing a row of a plurality of display screens, determining that the first display screen on the left side is a reference display screen according to the sequence from left to right;
when the spliced wall is formed by splicing 2 multiplied by 2 display screens, determining a first display screen in a first row as a reference display screen;
when the spliced wall is formed by splicing a plurality of columns and a plurality of rows of display screens of which the number of the rows and the columns is more than 2, the reference display screen is determined according to the center principle.
3. The method of claim 2, wherein the central principle comprises:
when the number of the display screens of the spliced wall is odd rows multiplied by odd columns, determining the display screen at the central position as a reference display screen;
when the number of the display screens of the spliced wall is even rows multiplied by even columns, 2 multiplied by 2 display screens at the central position are taken as reference display screens;
when the number of the display screens of the spliced wall is even rows multiplied by odd columns, taking 1 multiplied by 2 display screens at the central position as a reference display screen;
when the number of the display screens of the spliced wall is odd columns multiplied by even rows, 2 multiplied by 1 display screens at the center position are taken as reference display screens.
4. The method of claim 1, wherein the reference display screen is divided into 4 x 4 display segments and the target display screen is divided into 3 x 3 display segments.
5. The method of claim 1, wherein each of the aliquot display areas of the target display screen corresponds to each of the aliquot display areas of the reference display screen by:
M11corresponds to C11、C12、C21And C22；M12Corresponds to C12、C13、C22And C23；M13Corresponds to C13、C14、C23And C24；
M21Corresponds to C21、C22、C31And C32；M22Corresponds to C22、C23、C32And C33；M23Corresponds to C23、C24、C33And C34；
M31Corresponds to C31、C32、C41And C42；M32Corresponds to C32、C33、C42And C43；M33Corresponds to C33、C34、C43And C44。
6. The method of claim 5, wherein when the reference display screen is a plurality of display screens, adjusting the chroma value and the brightness value of each display area in the target display screen by using the chroma value and the brightness value of each equally divided display area in each reference display screen comprises:
when the reference display screen is a plurality of display screens, acquiring a chromatic value and a brightness value of each equally divided display area in each reference display screen;
obtaining a reference colorimetric value and a reference brightness value through a reference calculation model according to the colorimetric value and the brightness value of each equally divided display area in each reference display screen, wherein the reference colorimetric value and the reference brightness value respectively correspond to the equally divided display areas of the reference display screen, and the reference calculation model is as follows:
wherein S iscRepresenting a reference colorimetric value corresponding to the position of a display area corresponding to the digital mark of the reference display screen matrix in each reference display screen obtained by the reference calculation model; l iscThe reference brightness value corresponding to the position of the display area corresponding to the digital mark of the reference display screen matrix in each reference display screen obtained by the reference calculation model is represented; skExpressing the colorimetric values corresponding to the display area positions corresponding to the numerical marks of the reference display screen matrix of the kth reference display screen; l iskThe corresponding brightness value of the display area position corresponding to the number mark of the reference display screen matrix of the kth reference display screen is represented; n represents the number of reference display screens; smax1The maximum chromaticity value of a display position corresponding to the number mark of the same reference display screen matrix in the n reference display screens is represented; l ismax1The maximum brightness value of the display position corresponding to the number mark of the matrix of the same reference display screen in the n reference display screens is represented; smin1Representing the chromaticity minimum value of a display position corresponding to the number mark of the same reference display screen matrix in the n reference display screens; l ismin1The minimum brightness value of the display position corresponding to the number mark of the matrix of the same reference display screen in the n reference display screens is represented;
obtaining a reference parameter matrix A according to the reference luminance value and the reference chromatic value, wherein the reference parameter matrix A is as follows:
wherein A is11……A44The digital mark is used for indicating the reference colorimetric value and the reference brightness value which are obtained correspondingly by each equally divided display area of each reference display screen and obtained by utilizing a plurality of reference display screens;
determining the corresponding relation between each equally divided display area of the target display screen and the number labels of the reference colorimetric values and the reference brightness values in the reference parameter matrix A by using the reference parameter matrix A, wherein the corresponding number ratio of each equally divided display area of the target display screen to the reference colorimetric values and the reference brightness values is as follows: 1: 4;
calculating and obtaining the colorimetric value and the brightness value of each equal division display area corresponding to each target display screen by utilizing a second colorimetric value determination model and a second brightness value determination model according to the corresponding relation between each equal division display area of the target display screen and the reference colorimetric value and the number label of the reference brightness value in the reference parameter matrix A;
and respectively adjusting the brightness value and the chroma value of each equal display area in the target display screen in real time by taking the chroma value and the brightness value respectively obtained by the second chroma value determination model and the second brightness value determination model as a target chroma value and a target brightness value, so that the brightness value and the chroma value of each equal display area in the target display screen are consistent with the target chroma value and the target brightness value.
7. The method of claim 6, wherein the second chrominance value determining model and the second luminance value determining model are as follows:
wherein S isa2Representing a colorimetric value obtained by the second colorimetric value determination model; smRepresenting the colorimetric value of the mth reference colorimetric value corresponding to the four reference colorimetric values corresponding to each equally divided display area of the target display screen; sm-maxRepresenting the maximum value of the chromatic value in the four reference chromatic values corresponding to each equally divided display area of the target display screen; sm-minRepresenting the minimum value of the colorimetric values in the four reference colorimetric values corresponding to each equally divided display area of the target display screen; alpha is alpha2Representing the second chrominance value adjustment coefficient, alpha2The value range of (A) is 0.62-0.78;
wherein L isa2Representing a luminance value obtained by the second colorimetric value determination model; l ismThe luminance value of the mth reference luminance value corresponding to the four reference colorimetric values corresponding to each equally divided display area of the target display screen is represented; l ism-maxRepresenting the maximum value of the brightness values in the four reference brightness values corresponding to each equally divided display area of the target display screen; l ism-minRepresenting the minimum value of the brightness values in the four reference brightness values corresponding to each equally divided display area of the target display screen; beta is a2Indicating a second luminance value adjustment coefficient, beta2The value range of (A) is 0.74-0.83.
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Citations (2)
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|---|---|---|---|---|
| CN102097082A (en) * | 2010-12-06 | 2011-06-15 | 广东威创视讯科技股份有限公司 | Color regulation method for multi-play unit spliced display system and system thereof |
| CN109637434A (en) * | 2018-12-29 | 2019-04-16 | 深圳市奥拓电子股份有限公司 | Bearing calibration, correction system and the machine readable storage medium of mosaic display screen |
Family Cites Families (7)
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| CN102982786B (en) * | 2012-12-18 | 2015-06-24 | 广东威创视讯科技股份有限公司 | Method and device for color consistency adjustment of multiple display screens |
| CN103531175B (en) * | 2013-10-31 | 2016-08-17 | 广东威创视讯科技股份有限公司 | Splicing display device screen intensity uniformity tuning method and system |
| CN103680469B (en) * | 2013-12-23 | 2015-12-30 | 深圳市华星光电技术有限公司 | The method of adjustment of the brightness and contrast of a kind of liquid crystal display and liquid crystal display thereof |
| CN105336286A (en) * | 2014-07-29 | 2016-02-17 | 杭州海康威视数字技术股份有限公司 | Spliced screen color adjusting method and device |
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| CN109637434A (en) * | 2018-12-29 | 2019-04-16 | 深圳市奥拓电子股份有限公司 | Bearing calibration, correction system and the machine readable storage medium of mosaic display screen |
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