CN115691388A - Color management method for display equipment - Google Patents
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Abstract
The invention provides a color management method of a display device, which comprises the following steps: measuring display parameters of the display equipment by using color management software and a colorimeter to obtain target measurement data; processing the target measurement data by using an LUT processing model based on the display screen international standard to generate LUT processing data; and editing the LUT processing data by using LUT application tool software to realize the adjustment of the display parameters of the display equipment. The invention can control the display parameters of the display equipment within the standard range, avoid the occurrence of display color difference and help users with certain requirements on color.
Description
Technical Field
The invention relates to the technical field of color control of display equipment, in particular to a color management method of the display equipment.
Background
Most of the existing display equipment does not perform color management on the display screen, and because the color standards of the existing display equipment are different, the display effect of the same section of material on each piece of display equipment is different, the displayed color is different from that of different screens for black and white display; at present, some high-end brands or high-end product lines can manage factory colors of display equipment, but only manage white balance, but along with the influence of factors such as the service time and the service environment of the display equipment, the colors of the display equipment can be gradually attenuated to influence the color accuracy; therefore, the accuracy of delivery is not enough, and daily color management is also needed; a display device color management method is needed.
Disclosure of Invention
The invention provides a color management method of display equipment, which can control the display parameters of the display equipment within a standard range, avoid the occurrence of display color difference and play a reference role for users with certain requirements on colors.
The invention provides a color management method of a display device, which comprises the following steps:
s1: measuring display parameters of the display equipment by using color management software and a colorimeter to obtain target measurement data;
s2: processing the target measurement data by using an LUT processing model based on the display screen international standard to generate LUT processing data;
s3: and editing the LUT processing data by using LUT application tool software to realize the adjustment of the display parameters of the display equipment.
Further, S1 includes:
s101: acquiring the starting-up time of the display equipment; when the starting-up time is longer than a preset time threshold, testing the display parameters of the standard color block of the display equipment by using a colorimeter according to a preset period T;
s102: comparing a first difference between the first display parameter obtained in the period T and the second display parameter obtained in the period T-1; when the first difference is smaller than a preset first difference threshold value, ending the test, and taking the first display parameter obtained in the period T as target measurement data;
s103: and obtaining historical average display parameters of the display equipment under the same test condition on the same day, comparing a second difference value between the first display parameter and the historical average display parameter, and taking the historical average display parameter as target measurement data if the second difference value is greater than a preset second difference value threshold.
Further, after S103, the method further includes:
s105: carrying out interpolation processing on the target measurement data to obtain interpolation processing data;
s106: performing feature extraction and filtering on the interpolation processing data by using a least square method to obtain a target feature vector;
s107: carrying out normalization processing on the target characteristic vector to obtain normalization processing data;
s108: comparing the normalized processing data with preset reference data to obtain a data difference value, and if the data difference value is within a preset difference value threshold range, retaining target measurement data corresponding to the normalized processing data; otherwise, the target measurement data is discarded.
Further, S2 includes:
s201: acquiring color standard parameters based on the international standard of a display screen, and establishing an LUT processing model based on the color standard parameters;
s202: and processing the target measurement data by using the matrix and the LUT processing model to obtain LUT processing data.
Further, S202 includes:
s2021: acquiring RGB values in target measurement data, substituting the RGB values into a third-order matrix, and calculating to obtain three one-dimensional input vectors;
s2022: inputting the three one-dimensional input vectors into an LUT processing model to obtain three one-dimensional output vectors;
s2023: inputting the three one-dimensional output vectors into a Lab color space, and outputting to obtain a Lab color value;
s2024: generating LUT processing data according to Lab color values.
Further, S3 includes:
s301: converting the LUT processing data into linear RGB values by using matrix calculation;
s302: converting the linear RGB values into display device RGB values using a linear correction inverse curve;
s303: and converting the RGB values of the display device into new display parameters by using tool software, and applying the new display parameters to the display device.
Further, S303 further includes:
s3031: setting experimental display equipment, and simultaneously applying the new display parameters to the experimental display equipment;
s3032: and detecting whether the color spectral range of the experimental display equipment is consistent with the color spectral range on the display equipment or not based on a color gamut detection tool of the display equipment, if not, mapping the colors outside the color gamut of the display equipment on the experimental display equipment into the color gamut of the display equipment by using a color gamut mapping algorithm, and repairing the color gamut of the display equipment.
Further, the method further includes step S304, updating and adjusting the LUT processing model according to the evaluation of the display parameter adjustment result of the display, specifically including the steps of:
s304-1: acquiring factory-new measurement data of factory-new display equipment, and processing the factory-new measurement data by using an LUT processing model to obtain first LUT processing data;
s304-2: adjusting the factory-new display equipment based on the first LUT processing data to obtain a first adjustment display parameter;
s304-3: comparing the difference value between the new display parameter and the first adjustment display parameter, and checking the service time of the display equipment or checking the circuit fault of the display equipment if the difference value is greater than a preset difference value threshold value; and if the use time is less than the preset use period threshold value and the display equipment has no circuit fault, updating and adjusting the LUT processing model.
Further, S4, monitoring and adjusting the color of the display equipment according to the use object and the use time of the display equipment, and the specific steps are as follows:
s401: acquiring a plurality of using objects of the display equipment, and acquiring basic display parameters of the display equipment suitable for the using objects according to the using habits of the using objects;
s402: displaying device time according to usage of usage object
Setting an adjustment period of a display device
If the time for using the display equipment by using the object is greater than a preset first time threshold value, adjusting the period according to the corresponding adjustment period
Adjusting basic display parameters of the display equipment according to a preset adjustment range; when the display device is used by the objectAnd when the time is greater than a preset second time threshold, the display equipment is controlled to be temporarily closed or eye protection software is started, and an eye rest prompt is sent out.
Further, the method also comprises S5, the gamma value of the display device is adjusted according to the fixed use environment of the user, and the specific steps are as follows:
s501: detecting and acquiring a plurality of illumination intensities of the environment where the display equipment is located by using an optical sensor; the illumination intensity is based on a fixed time period T during the day q Detecting;
s502: analyzing the illumination intensity by utilizing photosensitive equipment to obtain environmental illumination parameter values of different time periods;
s503: constructing a matching relation table of the environmental light intensity parameter value and the gamma value of the display equipment, and storing the table in a preset display equipment processing device;
s504: setting a timing controller and setting a conversion period T r According to a time period T q Timing, when the timer period reaches T q -T r And then, acquiring a gamma value of the display equipment matched with the ambient illumination parameter value by utilizing the processing device of the display equipment, and applying the gamma value of the display equipment to the display equipment.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram illustrating a method for color management of a display device according to the present invention;
FIG. 2 is a schematic diagram illustrating the steps of a method for obtaining target measurement data according to the present invention;
fig. 3 is a schematic diagram of the method steps for obtaining LUT processing data 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 color management method of a display device, as shown in FIG. 1, comprising:
s1: measuring display parameters of the display equipment by using color management software and a colorimeter to obtain target measurement data;
s2: processing the target measurement data by using an LUT processing model based on the display screen international standard to generate LUT processing data;
s3: and editing the LUT processing data by using LUT application tool software to realize the adjustment of the display parameters of the display equipment.
The working principle of the technical scheme is as follows: measuring display parameters of the display equipment by using color management software and a colorimeter to obtain target measurement data; processing the target measurement data by using an LUT processing model based on the display screen international standard to generate LUT processing data; and editing the LUT processing data by using LUT application tool software to realize the adjustment of the display parameters of the display equipment.
The beneficial effects of the above technical scheme are: by adopting the scheme provided by the embodiment, the display parameters of the display equipment can be controlled within a standard range, the display color difference is avoided, and a reference function is played for users with certain requirements on color.
In one embodiment, as shown in fig. 2, S1 comprises:
s101: acquiring the starting-up time of the display equipment; when the starting-up time is longer than a preset time threshold, testing the display parameters of the standard color block of the display equipment by using a colorimeter according to a preset period T;
s102: comparing a first difference between the first display parameter obtained in the period T and the second display parameter obtained in the period T-1; when the first difference value is smaller than a preset first difference value threshold value, ending the test, and taking the first display parameter obtained in the period T as target measurement data;
s103: and obtaining historical average display parameters of the display equipment under the same test condition on the same day, comparing a second difference value between the first display parameter and the historical average display parameter, and taking the historical average display parameter as target measurement data if the second difference value is greater than a preset second difference value threshold.
The working principle of the technical scheme is as follows: s101: acquiring the starting-up time of the display equipment; when the starting-up time is longer than a preset time threshold, testing the display parameters of the standard color block of the display equipment by using a colorimeter according to a preset period T;
s102: comparing a first difference between the first display parameter obtained in the period T and the second display parameter obtained in the period T-1; when the first difference is smaller than a preset first difference threshold value, ending the test, and taking the first display parameter obtained in the period T as target measurement data;
s103: and obtaining historical average display parameters of the display equipment under the same test condition on the same day, comparing a second difference value between the first display parameter and the historical average display parameter, and taking the historical average display parameter as target measurement data if the second difference value is greater than a preset second difference value threshold.
The beneficial effects of the above technical scheme are: by adopting the scheme provided by the embodiment, the accuracy of the acquired target measurement data can be ensured by monitoring the display equipment according to a fixed period and acquiring the historical average display parameters.
In one embodiment, after S103, further comprising:
s105: carrying out interpolation processing on the target measurement data to obtain interpolation processing data;
s106: performing feature extraction and filtering on the interpolation processing data by using a least square method to obtain a target feature vector;
s107: carrying out normalization processing on the target characteristic vector to obtain normalization processing data;
s108: comparing the normalization processing data with preset reference data to obtain a data difference value, and if the data difference value is within a preset difference value threshold range, retaining target measurement data corresponding to the normalization processing data; otherwise, the target measurement data is discarded.
The working principle of the technical scheme is as follows: after S103, further comprising:
s105: carrying out interpolation processing on the target measurement data to obtain interpolation processing data;
s106: performing feature extraction and filtering on the interpolation processing data by using a least square method to obtain a target feature vector;
s107: carrying out normalization processing on the target characteristic vector to obtain normalization processing data;
s108: comparing the normalized processing data with preset reference data to obtain a data difference value, and if the data difference value is within a preset difference value threshold range, retaining target measurement data corresponding to the normalized processing data; otherwise, the target measurement data is discarded.
The beneficial effects of the above technical scheme are: by adopting the scheme provided by the embodiment, the accuracy of screening the target measurement data can be ensured by utilizing the least square method and processing the interpolation data.
In one embodiment, as shown in fig. 3, S2 includes:
s201: acquiring color standard parameters based on the international standard of a display screen, and establishing an LUT processing model based on the color standard parameters;
s202: and processing the target measurement data by using the matrix and the LUT processing model to obtain LUT processing data.
The working principle of the technical scheme is as follows: s2 comprises the following steps:
s201: acquiring color standard parameters based on the international standard of a display screen, and establishing an LUT processing model based on the color standard parameters;
s202: and processing the target measurement data by using the matrix and the LUT processing model to obtain LUT processing data.
The beneficial effects of the above technical scheme are: by adopting the scheme provided by the embodiment, the processing efficiency of the target measurement data can be ensured by establishing the LUT processing model.
In one embodiment, S202 includes:
s2021: acquiring RGB values in target measurement data, substituting the RGB values into a third-order matrix, and calculating to obtain three one-dimensional input vectors;
s2022: inputting the three one-dimensional input vectors into an LUT processing model to obtain three one-dimensional output vectors;
s2023: inputting the three one-dimensional output vectors into a Lab color space, and outputting to obtain a Lab color value;
s2024: generating LUT processing data according to Lab color values.
The working principle of the technical scheme is as follows: s202 comprises the following steps:
s2021: acquiring RGB values in target measurement data, substituting the RGB values into a third-order matrix, and calculating to obtain three one-dimensional input vectors;
s2022: inputting the three one-dimensional input vectors into an LUT processing model to obtain three one-dimensional output vectors;
s2023: inputting the three one-dimensional output vectors into a Lab color space, and outputting to obtain a Lab color value;
s2024: generating LUT processing data according to Lab color values.
The beneficial effects of the above technical scheme are: by adopting the scheme provided by the embodiment, the adaptive LUT processing data can be ensured to be obtained by converting the RGB values
In one embodiment, S3 comprises:
s301: converting the LUT processing data into linear RGB values by using matrix calculation;
s302: converting the linear RGB values into display device RGB values using a linear correction inverse curve;
s303: and converting the RGB values of the display device into new display parameters by using tool software, and applying the new display parameters to the display device.
The working principle of the technical scheme is as follows: s3 comprises the following steps:
s301: converting the LUT processing data into linear RGB values by using matrix calculation;
s302: converting the linear RGB values into display device RGB values using a linear correction inverse curve;
s303: and converting the RGB values of the display device into new display parameters by using tool software, and applying the new display parameters to the display device.
The beneficial effects of the above technical scheme are: by adopting the scheme provided by the embodiment, the RGB values can be effectively converted into the display parameters of the new display equipment.
In one embodiment, S303 further comprises:
s3031: setting experimental display equipment, and simultaneously applying the new display parameters to the experimental display equipment;
s3032: and detecting whether the color spectral range of the experimental display equipment is consistent with the color spectral range on the display equipment or not based on a color gamut detection tool of the display equipment, if not, mapping the colors outside the color gamut of the display equipment on the experimental display equipment into the color gamut of the display equipment by using a color gamut mapping algorithm, and repairing the color gamut of the display equipment.
The working principle of the technical scheme is as follows: s303 further includes:
s3031: setting experimental display equipment, and simultaneously applying the new display parameters to the experimental display equipment;
s3032: and detecting whether the color spectral range of the experimental display equipment is consistent with the color spectral range on the display equipment or not based on a color gamut detection tool of the display equipment, if not, mapping the colors outside the color gamut of the display equipment on the experimental display equipment into the color gamut of the display equipment by using a color gamut mapping algorithm, and repairing the color gamut of the display equipment.
The beneficial effects of the above technical scheme are: by adopting the scheme provided by the embodiment, the display equipment can be ensured to obtain a clear and complete color gamut by using the color gamut detection tool.
In one embodiment, the method further includes step S304, updating and adjusting the LUT processing model according to the evaluation of the display parameter adjustment result of the display, and includes the specific steps of:
s304-1: acquiring factory-new measurement data of factory-new display equipment, and processing the factory-new measurement data by using an LUT processing model to acquire first LUT processing data;
s304-2: adjusting the factory-new display equipment based on the first LUT processing data to obtain a first adjustment display parameter;
s304-3: comparing the difference value of the new display parameter and the first adjustment display parameter, and checking the service time of the display equipment or checking the circuit fault of the display equipment if the difference value is greater than a preset difference value threshold value; and if the use time is less than the preset use period threshold value and the display equipment has no circuit fault, updating and adjusting the LUT processing model.
The working principle of the technical scheme is as follows: further comprising S304, updating and adjusting the LUT processing model according to the evaluation of the display parameter adjustment result of the display, specifically comprising the steps of:
s304-1: acquiring factory-new measurement data of factory-new display equipment, and processing the factory-new measurement data by using an LUT processing model to acquire first LUT processing data;
s304-2: adjusting the factory-new display equipment based on the first LUT processing data to obtain a first adjustment display parameter;
s304-3: comparing the difference value of the new display parameter and the first adjustment display parameter, and checking the service time of the display equipment or checking the circuit fault of the display equipment if the difference value is greater than a preset difference value threshold value; and if the use time is less than the preset use period threshold value and the display equipment has no circuit fault, updating and adjusting the LUT processing model.
The beneficial effects of the above technical scheme are: by adopting the scheme provided by the embodiment, the LUT processing model is updated and adjusted by evaluating the adjustment result of the display parameter of the display, so that the use efficiency of the LUT processing model can be ensured to be exerted.
In one embodiment, the method further comprises step S4 of monitoring and adjusting the color of the display device according to the usage object and the usage time of the display device, and the specific steps are as follows:
s401: acquiring a plurality of using objects of the display equipment, and acquiring basic display parameters of the display equipment suitable for the using objects according to the using habits of the using objects;
s402: displaying device time according to use of a use object
Setting an adjustment period of a display device
If the time for using the display equipment by the object is greater than a preset first time threshold value, adjusting the period according to the corresponding adjustment period
Adjusting basic display parameters of the display equipment according to a preset adjustment range; and if the time for using the display equipment by the object is greater than the preset second time threshold, the display equipment is controlled to be temporarily closed or eye protection software is started, and an eye rest prompt is sent out.
The working principle of the technical scheme is as follows: s4, monitoring and adjusting the color of the display equipment according to the use object and the use time of the display equipment, and specifically comprising the following steps:
s401: acquiring a plurality of using objects of the display equipment, and acquiring basic display parameters of the display equipment suitable for the using objects according to the using habits of the using objects;
s402: displaying device time according to usage of usage object
Setting an adjustment period of a display device
If the time for using the display equipment by using the object is greater than a preset first time threshold value, adjusting the period according to the corresponding adjustment period
Adjusting basic display parameters of the display equipment according to a preset adjustment range; and if the time for using the display equipment by the object is greater than the preset second time threshold, the display equipment is controlled to be temporarily closed or eye protection software is started, and an eye rest prompt is sent out.
The beneficial effects of the above technical scheme are: by adopting the scheme provided by the embodiment, the color of the display equipment is monitored and adjusted according to the use object and the use time of the display equipment, so that the time of using the display equipment by using the object can be better ensured, and the effect of promoting the vision protection of the using object is achieved.
In one embodiment, the method further includes S5, adjusting the gamma value of the display device according to the fixed use environment of the user, and the specific steps are as follows:
s501: detecting and acquiring a plurality of illumination intensities of the environment where the display equipment is located by using a light sensor; the illumination intensity is based on a fixed time period T during the day q Detecting;
s502: analyzing the illumination intensity by utilizing photosensitive equipment to obtain environmental illumination parameter values of different time periods;
s503: constructing a matching relation table of the environmental light intensity parameter value and the gamma value of the display equipment, and storing the table in a preset display equipment processing device;
s504: setting a timing controller and setting a switching period T r According to a time period T q Timed when the timer period reaches T q -T r And then, acquiring a gamma value of the display equipment matched with the ambient illumination parameter value by using the display equipment processing device, and applying the gamma value of the display equipment to the display equipment.
The working principle of the technical scheme is as follows: the gamma value affects the tone of the middle value of the image or the gray level of the middle level, and the brightness value of the gray level of the middle tone of the image can be changed by adjusting the gamma value so as to increase the middle level of the image without greatly affecting the levels of the dark part and the bright part. The method comprises the following steps of adjusting the gamma value of the display equipment according to the fixed use environment of a user:
s501: detecting and acquiring a plurality of illumination intensities of the environment where the display equipment is located by using an optical sensor; the illumination intensity is based on a fixed time period T during the day q Detecting;
s502: analyzing the illumination intensity by using photosensitive equipment to obtain environmental illumination parameter values of different time periods;
s503: constructing a matching relation table of the environmental light intensity parameter value and the gamma value of the display equipment, and storing the table in a preset display equipment processing device;
s504: setting a timing controller and setting a switching period T r According to a time period T q Timing, when the timer period reaches T q -T r And then, acquiring a gamma value of the display equipment matched with the ambient illumination parameter value by using the display equipment processing device, and applying the gamma value of the display equipment to the display equipment.
In the display equipment, the gray value of the same pixel point can be different in different subframes, namely the gray value of the same pixel point can be subjected to gray processing in different subframes, so that the image in the low gray range of the display equipment has a jittering visual effect, and the fine degree of the display gray level in the low gray range of the display equipment is improved;
the brightness between white and black is called gray level or gray scale, the gamma conversion curve is the function relation between the image gray level and the actual brightness and the percentage of the maximum brightness of the display device, and the brightness of the display device is approximately linear along with the increase of the gray level through the gamma conversion curve; whereas the perceived brightness of the display device by the human eye is non-linear with increasing grey level. In order to make human eyes feel more natural when watching a display device and better present rich color levels in an image or a video, a gamma value of the display device generally has a fixed value range; if the gamma value is too large, the image looks darker on the whole, especially the contrast of the low gray scale interval is reduced, and some details of the image are lost; if the gamma value is too small, the displayed image is brighter on the whole, and the image loses the corresponding layering sense on the whole;
the pixel dithering algorithm is applied to the display equipment, the achievable gray level can be increased, the gray level fineness degree is improved, but the gray level processing is carried out on the gray level of the same pixel point in different subframes, so that the dithering visual effect can be caused, the problems of gray level hopping, uneven gray level transition and poor display effect occur, in order to weaken the flicker feeling brought to human eyes in the algorithm implementation process and improve the gray level processing effect, the gray level processing effect can be evaluated by observing the brightness fluctuation condition of the same pixel point position in different subframes, namely the brightness fluctuation value; the calculation formula of the brightness fluctuation value is as follows:
in the above formula, p 1 Is the brightness value, p, of a pixel point in the first sub-frame 2 Is the brightness value, p, of the corresponding pixel point at the same position in the second sub-frame ∈ The brightness value p of the corresponding pixel point at the same position in the e-th subframe δ Belonging to the average value of the brightness of the pixel points at the same position in the subframes, and belonging to the number of the subframes; m represents the brightness fluctuation value of the same pixel point position in different sub-frames; the smaller the brightness fluctuation value is, the better the gray scale processing effect is, and the influence of the problems of gray scale jump, uneven gray scale transition and poor display effect can be effectively reduced.
The beneficial effects of the above technical scheme are: by adopting the scheme provided by the embodiment, the gamma value of the display equipment is adjusted according to the fixed use environment of the user, so that the reasonably fixed contrast of the display equipment can be ensured to be provided for a user, and the use comfort level is provided; the effect of gray scale processing is reflected by setting the brightness fluctuation value, so that the influence of a dithering visual effect can be reduced, and the effect of gray scale fine processing is improved.
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 (10)
1. A method for color management of a display device, comprising:
s1: measuring display parameters of the display equipment by using color management software and a colorimeter to obtain target measurement data;
s2: processing the target measurement data by using an LUT processing model based on the display screen international standard to generate LUT processing data;
s3: and editing the LUT processing data by using LUT application tool software to realize the adjustment of the display parameters of the display equipment.
2. The method for color management of a display device according to claim 1, wherein S1 comprises:
s101: acquiring the starting-up time of the display equipment; when the starting-up time is longer than a preset time threshold, testing the display parameters of the standard color block of the display equipment by using a colorimeter according to a preset period T;
s102: comparing a first difference between the first display parameter obtained in the period T and the second display parameter obtained in the period T-1; when the first difference is smaller than a preset first difference threshold value, ending the test, and taking the first display parameter obtained in the period T as target measurement data;
s103: and obtaining historical average display parameters of the display equipment under the same test condition on the same day, comparing a second difference value of the first display parameter with the historical average display parameters, and taking the historical average display parameters as target measurement data if the second difference value is greater than a preset second difference value threshold value.
3. The method for color management of a display device according to claim 2, further comprising after S103:
s105: carrying out interpolation processing on the target measurement data to obtain interpolation processing data;
s106: performing feature extraction and filtering on the interpolation processing data by using a least square method to obtain a target feature vector;
s107: carrying out normalization processing on the target characteristic vector to obtain normalization processing data;
s108: comparing the normalized processing data with preset reference data to obtain a data difference value, and if the data difference value is within a preset difference value threshold range, retaining target measurement data corresponding to the normalized processing data; otherwise, the target measurement data is discarded.
4. The method for color management of a display device according to claim 1, wherein S2 comprises:
s201: acquiring color standard parameters based on the international standard of a display screen, and establishing an LUT processing model based on the color standard parameters;
s202: and processing the target measurement data by using the matrix and the LUT processing model to obtain LUT processing data.
5. The method for color management of a display device according to claim 4, wherein S202 comprises:
s2021: acquiring RGB values in target measurement data, substituting the RGB values into a third-order matrix, and calculating to obtain three one-dimensional input vectors;
s2022: inputting the three one-dimensional input vectors into an LUT processing model to obtain three one-dimensional output vectors;
s2023: inputting the three one-dimensional output vectors into a Lab color space, and outputting to obtain a Lab color value;
s2024: generating LUT processing data according to Lab color values.
6. The method for color management of a display device according to claim 1, wherein S3 comprises:
s301: converting the LUT processing data into linear RGB values by using matrix calculation;
s302: converting the linear RGB values into display device RGB values using a linear correction inverse curve;
s303: and converting the RGB value of the display equipment into new display parameters by using tool software, and applying the new display parameters to the display equipment.
7. The color management method for a display device according to claim 6, wherein S303 further comprises:
s3031: setting experimental display equipment, and simultaneously applying the new display parameters to the experimental display equipment;
s3032: and detecting whether the color spectral range of the experimental display equipment is consistent with the color spectral range on the display equipment or not based on a color gamut detection tool of the display equipment, if not, mapping the colors outside the color gamut of the display equipment on the experimental display equipment into the color gamut of the display equipment by using a color gamut mapping algorithm, and repairing the color gamut of the display equipment.
8. The method for color management of a display device according to claim 6, further comprising step S304 of updating and adjusting the LUT processing model according to the evaluation of the adjustment result of the display parameter of the display, the specific steps being:
s304-1: acquiring factory-new measurement data of factory-new display equipment, and processing the factory-new measurement data by using an LUT processing model to acquire first LUT processing data;
s304-2: adjusting the factory-new display equipment based on the first LUT processing data to obtain a first adjustment display parameter;
s304-3: comparing the difference value between the new display parameter and the first adjustment display parameter, and checking the service time of the display equipment or checking the circuit fault of the display equipment if the difference value is greater than a preset difference value threshold value; and if the use time is less than the preset use period threshold value and the display equipment has no circuit fault, updating and adjusting the LUT processing model.
9. The method for color management of display equipment according to claim 1, further comprising step S4 of monitoring and adjusting the color of the display equipment according to the usage object and the usage time of the display equipment, the steps being as follows:
s401: acquiring a plurality of using objects of the display equipment, and acquiring basic display parameters of the display equipment suitable for the using objects according to using habits of the using objects;
s402: displaying device time according to usage of usage object
Setting an adjustment period of a display device
If the time for using the display equipment by using the object is greater than a preset first time threshold value, adjusting the period according to the corresponding adjustment period
Adjusting basic display parameters of the display equipment according to a preset adjustment range; and if the time for using the display equipment by the object is greater than the preset second time threshold, the display equipment is controlled to be temporarily closed or eye protection software is started, and an eye rest prompt is sent out.
10. The method for color management of a display device according to claim 1, further comprising step S5 of adjusting the gamma value of the display device according to the fixed usage environment of the user, the steps being as follows:
s501: detecting and acquiring a plurality of illumination intensities of the environment where the display equipment is located by using an optical sensor; the illumination intensity is based on a fixed time period T during the day q Carrying out detection;
s502: analyzing the illumination intensity by utilizing photosensitive equipment to obtain environmental illumination parameter values of different time periods;
s503: constructing a matching relation table of the environmental light intensity parameter value and the gamma value of the display equipment, and storing the table in a preset display equipment processing device;
s504: setting a timing controller and setting a switching period T r According to a time period T q Timing, when the timer period reaches T q -T r And then, acquiring a gamma value of the display equipment matched with the ambient illumination parameter value by using the display equipment processing device, and applying the gamma value of the display equipment to the display equipment.
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| CN118366413A (en) * | 2024-06-20 | 2024-07-19 | 深圳市阿龙电子有限公司 | Display power consumption control method and system of intelligent watch |
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