WO2017113619A1 - 显示界面的亮度调整方法及装置 - Google Patents

显示界面的亮度调整方法及装置 Download PDF

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Publication number
WO2017113619A1
WO2017113619A1 PCT/CN2016/085262 CN2016085262W WO2017113619A1 WO 2017113619 A1 WO2017113619 A1 WO 2017113619A1 CN 2016085262 W CN2016085262 W CN 2016085262W WO 2017113619 A1 WO2017113619 A1 WO 2017113619A1
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Prior art keywords
frame image
brightness
display interface
same
value
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PCT/CN2016/085262
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English (en)
French (fr)
Inventor
高允沛
杨杰
康君平
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深圳Tcl数字技术有限公司
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Publication of WO2017113619A1 publication Critical patent/WO2017113619A1/zh

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10Intensity circuits
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406Control of illumination source
    • G09G3/3413Details of control of colour illumination sources

Definitions

  • the present invention relates to the field of multimedia technologies, and in particular, to a method and an apparatus for adjusting brightness of a display interface.
  • the existing display device adjusts the brightness of the backlight, generally by adjusting the brightness of the environment to adjust the display brightness of the display interface, and the brightness adjustment mode is only mechanically adjusting the brightness in the display interface according to the ambient brightness, that is, In an environment where the display interface is in a dimly lit environment, the display brightness of the display interface is higher than in a brightly lit environment, but when the display interface is in a static picture, that is, when the display content in the display interface does not change, the user may not be using it. If the display device is kept at a high level, the display device will consume a large amount of power. Obviously, the display brightness adjustment method is less intelligent.
  • the main object of the present invention is to provide a brightness adjustment method and device for a display interface, which aims to solve the technical problem of the conventional display brightness adjustment mode and low intelligence.
  • the present invention provides a brightness adjustment method for a display interface, and the brightness adjustment method of the display interface includes the following steps:
  • the first frame image is different from the display content in the second frame image, adjusting the brightness in the display interface to the first brightness
  • the present invention further provides a brightness adjustment method for a display interface, and the brightness adjustment method of the display interface includes the following steps:
  • the first frame image is different from the display content in the second frame image, adjusting the brightness in the display interface to the first brightness
  • the first frame image is the same as the display content in the second frame image, adjusting the brightness in the display interface to a second brightness, wherein the brightness value of the first brightness is greater than the second The brightness value of the brightness.
  • the present invention further provides a brightness adjustment device for a display interface, where the brightness adjustment device of the display interface includes:
  • An acquisition module configured to collect an image displayed in the display interface at a preset time interval
  • the comparison module is configured to compare the currently acquired first frame image with the last acquired second frame image
  • a determining module configured to determine whether the display content in the first frame image and the second frame image is the same
  • a first adjustment module configured to adjust a brightness in the display interface to a first brightness if the first frame image is different from the display content in the second frame image
  • a second adjustment module configured to display content in the first frame image and the second frame image Similarly, the brightness in the display interface is adjusted to a second brightness, wherein the brightness value of the first brightness is greater than the brightness value of the second brightness.
  • the method and device for adjusting the brightness of the display interface collects the image displayed in the display interface at a preset time interval, compares the currently acquired first frame image with the second frame image collected last time, and compares the current Comparing the acquired first frame image with the last acquired second frame image, if the first frame image is different from the display content in the second frame image, adjusting the brightness in the display interface to a first brightness, if the first frame image is the same as the display content in the second frame image, adjusting the brightness in the display interface to the second brightness instead of mechanically according to the ambient brightness in the display interface The brightness is adjusted.
  • the present invention adjusts the display brightness of the display interface by comparing the display contents of the two frames of images in the display interface, thereby improving the intelligence of brightness adjustment in the display interface.
  • FIG. 1 is a schematic flow chart of a preferred embodiment of a method for adjusting brightness of a display interface according to the present invention
  • FIG. 2 is a schematic flowchart of a preferred embodiment of determining whether the display content in the first frame image and the second frame image are the same according to the present invention
  • FIG. 3 is a schematic flow chart of a preferred embodiment for calculating gray values of respective pixels in the first frame image and the second frame image according to the present invention
  • FIG. 4 is a schematic flow chart of a preferred embodiment of adjusting brightness in the display interface to a second brightness according to the present invention
  • FIG. 5 is a schematic diagram of functional modules of a preferred embodiment of a brightness adjustment device for a display interface according to the present invention.
  • FIG. 6 is a schematic diagram of a refinement function module of the judging module in FIG. 5;
  • FIG. 7 is a schematic diagram of a refinement function module of the first computing sub-module of FIG. 6;
  • FIG. 8 is a schematic diagram of a refinement function module of the second adjustment module in FIG. 5.
  • the invention provides a brightness adjustment method of a display interface.
  • FIG. 1 is a schematic flow chart of a first embodiment of a method for adjusting brightness of a display interface according to the present invention.
  • the embodiment provides a brightness adjustment method of the display interface, and the brightness adjustment method of the display interface includes:
  • Step S10 collecting an image displayed in the display interface at a preset time interval
  • Step S20 comparing the currently acquired first frame image with the last acquired second frame image
  • the image displayed in the display interface is collected at predetermined time intervals, and then the currently acquired first frame image is compared with the last acquired second frame image.
  • Capture images can be captured by screenshots or screenshots.
  • the image is acquired at a preset time interval, and the preset time interval is set according to a specific situation, such as setting one frame image every 5 s.
  • each frame of the image is collected at a preset time interval, and the image of each frame is not collected in real time, so that the image collection is not used too frequently. If the image is collected too frequently, most of the collected images will be the same.
  • the image causes the processing of the processor to be too frequent, which wastes energy. Therefore, in this embodiment, two frames of images are collected at preset time intervals, which reduces the power consumption of the processor.
  • Step S30 determining whether the display content in the first frame image and the second frame image is the same;
  • the collected first frame image is compared with the display content of the second frame image to determine Whether the first frame image and the display content in the second frame image are the same, and the manner of determining whether the first frame image and the display content in the second frame image are the same includes:
  • Method 1 dividing the first frame image and the second frame image into equal small regions, respectively, and then respectively displaying the display content in each small region in the first frame image with the first
  • the display contents in the respective small areas of the same position in the first frame image and the second frame image reaches a preset similarity such as 90 %, determining that the first frame image and the two small regions of the same position in the second frame image are the same, and the same small region in the first frame image and the second frame image
  • a preset similarity such as 90 %
  • the second method is: calculating a gray value of each pixel in the first frame image and the second frame image, and using a gray value of each pixel in the first frame image and the second frame The gray values of each pixel in the same position in the image are subtracted to obtain respective gray difference values, and an average value of the absolute values of the respective gray difference values is calculated, and it is determined whether the average value is smaller than the preset threshold.
  • a value that is, comparing the average value with a preset threshold value, and determining, according to the comparison result, whether the first frame image and the second frame image are the same, wherein the average value is less than or equal to Determining, when the threshold value is determined, that the first frame image is the same as the display content in the second frame image, and when the average value is greater than the threshold value, determining the first frame image and the second frame The display content in the frame image is different.
  • Step S40 if the first frame image is different from the display content in the second frame image, adjusting the brightness in the display interface to the first brightness;
  • Step S50 if the first frame image and the display content in the second frame image are the same, the brightness in the display interface is adjusted to a second brightness, wherein the brightness value of the first brightness is greater than The brightness value of the second brightness is described.
  • the first frame image is different from the display content in the second frame image
  • the first frame image is different from the second frame image
  • the two frames are compared to the display content.
  • a change occurs, which is equivalent to displaying a dynamic picture in the display interface.
  • the brightness of the display interface is adjusted to the first brightness; if the display content of the first frame image and the second frame image is the same, The first frame image and the second frame image are not different, and the two frames of images have no change compared to the display content, which is equivalent to displaying a static image in the display interface, and the brightness in the display interface can be directly adjusted to a second brightness, wherein the brightness value of the first brightness is greater than the brightness value of the second brightness, that is, when the display content of the first frame image and the second frame image is the same, the display interface is displayed The brightness in the dark is dimmed, which reduces energy consumption.
  • a preferred application scenario is: when the display device is a monitoring device, the monitoring device first collects a second frame image, and stores the second frame image, and then collects the current first frame in the display interface. And comparing the display content in the first frame image with the display content in the second frame image according to the comparison between the first frame image and the display content in the second frame image.
  • the brightness of the display interface is adjusted accordingly, and when the two images in the display interface are the same image, the brightness of the display interface is dimmed, that is, when the display screen in the display interface does not change, the display screen is equivalent to
  • the static picture at this time, keeps the dark screen mode, and the two frames of the image in the display interface are different images, that is, when the display interface is a dynamic picture, the brightness of the display interface is brightened for the user to view the monitoring.
  • the monitoring screen of the device does not need to maintain a bright display state at all times, and dims the brightness when the display screen is a static screen, which reduces the power consumption of the display device
  • the image displayed in the display interface is collected at a preset time interval, and the currently collected first frame image is compared with the last frame image collected last time, and the current collection is performed. Comparing the first frame image with the last acquired second frame image, if the first frame image is different from the display content in the second frame image, adjusting the brightness in the display interface to a brightness, if the first frame image is the same as the display content in the second frame image, adjusting the brightness in the display interface to the second brightness instead of mechanically depending on the ambient brightness on the display interface The brightness is adjusted.
  • the present invention adjusts the display brightness of the display interface by comparing the display contents of the two frames of images in the display interface, thereby improving the intelligence of brightness adjustment in the display interface.
  • the step S30 includes:
  • Step S31 calculating gray values of respective pixels in the first frame image and the second frame image
  • Step S32 calculating a gradation difference value of each pixel point in the first frame image and the second frame image in the same position
  • Step S33 calculating an average value of the absolute values of the gradation difference values
  • gray values of respective pixels in the first frame image and the second frame image are respectively calculated, and the calculation is performed.
  • the first A specific embodiment of a gray value of each pixel in the image of the second frame and the second frame is hereinafter described in detail, and gray values of respective pixels in the first frame image and the second frame image are obtained.
  • the difference between the first frame image and the second frame image can be known according to the average value.
  • Step S34 determining whether the average value is less than a preset threshold value, wherein when the average value is less than or equal to the threshold value, determining display content in the first frame image and the second frame image the same.
  • the average value is compared with a preset threshold value, and if the average value is less than or equal to the threshold value, the first frame image and the second frame image are illustrated.
  • the difference between the first frame image and the second frame image is not the same, and the first frame image is determined to be the same as the display content in the second frame image;
  • the threshold is The first frame image and the second frame image are different from each other, and the first frame image is different from the second frame image, and the first frame image and the second frame are determined.
  • the display content in the image is different.
  • the gray value of each pixel in the first frame image and the second frame image is calculated, and according to the first frame image and each pixel point in the second frame image. Calculating an average value of the gray value of the first frame image and the second frame image, and finally determining a difference between the first frame image and the second frame image according to the calculated average value Determining whether the display content in the first frame image and the second frame image is the same by using the average value, and determining whether the display content in the first frame image and the second frame image is the same accuracy.
  • the step S31 includes:
  • Step S311 acquiring each pixel point in the first frame image and the second frame image
  • Step S312 acquiring each pixel point in the first frame image and the second frame image
  • the calculating the gray value of each pixel in the first frame image and the second frame image is: first acquiring the first frame image and the second frame image Each pixel point, and then determining a color value of each of the three primary colors corresponding to each pixel point in the first frame image and the second frame image, it is understood that the color of each of the three primary colors
  • the value is a color value corresponding to each of the three colors of RGB (red R, green G, and blue B), that is, a red pixel value, a blue pixel value, and a green pixel value.
  • Step S313 weighting and averaging the color values of each of the three primary colors of the respective pixel points and the weight coefficients corresponding to each of the preset three primary colors to obtain gray values of the respective pixel points.
  • each pixel When each pixel is acquired, the color values of each of the three primary colors of each pixel are determined, and then the color values of each of the three primary colors of each pixel are respectively determined according to the weight coefficients corresponding to each of the three primary colors.
  • Performing weighted averaging on the weight coefficients corresponding to each of the preset three primary colors to obtain a gray value of each pixel for example, various color values corresponding to the pixel points have red pixel values, blue pixel values, Green pixel value, at this time, determine a red pixel value, a blue pixel value, a green pixel value, and then obtain a weight coefficient corresponding to each primary color, for example, a red corresponding weight coefficient is 0.3, a blue corresponding weight coefficient is 0.59, green The corresponding weight coefficient is 0.11, and the three primary colors are determined.
  • the weight coefficients corresponding to the plurality of primary colors After the weight coefficients corresponding to the plurality of primary colors, the weight coefficients corresponding to each of the three primary colors of the pixel and the color values of each of the three primary colors of each pixel are weighted and averaged to obtain a
  • the gray value of each pixel is calculated by the color value of each of the three primary colors of each pixel, and the weight coefficient corresponding to each of the preset three primary colors, thereby realizing the display interface.
  • the color image in the image is converted into a grayscale image for processing, and the accuracy of the comparison between the display content of the first frame image and the second frame image is improved.
  • the step S50 includes:
  • Step S51 if the display content of the first frame image and the second frame image are the same, update two frames of images in the display interface for the same number of consecutive times;
  • Step S52 When two consecutive frames of images in the display interface are consecutively the same number of times reaches a preset number of times, the brightness in the display interface is adjusted to a second brightness.
  • the display content in the first frame image and the second frame image is the same, and the two frames of images in the display interface are updated continuously. And the same number of times, and the brightness of the display interface is adjusted to the second brightness when the two frames of the image are consecutively the same number of times in the display interface, which is equivalent to the first in the display interface.
  • the frame image is the same as the display content in the second frame image, and the two images in the system have been the same before, and the brightness in the display interface is only when the same number of times reaches the preset number of times, such as 5 times.
  • the brightness in the display interface is adjusted to the second brightness, and both frames in the display interface are the same image, and the same number of times When the preset number of times is reached, the brightness in the display interface is adjusted to the second brightness, thereby reducing energy consumption and frequent adjustment of brightness in the display screen, so that The adjustment of the brightness in the display interface is more intelligent.
  • the invention further provides a brightness adjustment device for a display interface.
  • FIG. 5 is a functional module of a first embodiment of a brightness adjusting device for a display interface according to the present invention. schematic diagram.
  • the functional block diagram shown in FIG. 5 is merely an exemplary diagram of a preferred embodiment, and the function of the brightness adjusting device of the display interface shown in FIG. 5 by those skilled in the art.
  • the module can be easily supplemented by a new function module; the name of each function module is a custom name, and is only used to assist in understanding various program function blocks of the brightness adjustment device of the display interface, and is not used to limit the technical solution of the present invention.
  • the core of the technical solution of the invention is the function to be achieved by the functional modules of the respective defined names.
  • the embodiment provides a brightness adjustment device for the display interface, and the brightness adjustment device of the display interface includes:
  • the collecting module 10 is configured to collect an image displayed in the display interface at a preset time interval
  • the comparison module 20 is configured to compare the currently acquired first frame image with the last acquired second frame image
  • the acquisition module 10 collects images displayed in the display interface at predetermined time intervals, and then the comparison module 20 performs the currently acquired first frame image and the last acquired second frame image. Comparison.
  • the collection module 10 captures images by means of screenshots or screenshots.
  • the collecting module 10 preferably collects images at a preset time interval, and the preset time interval is set according to a specific situation, such as setting one frame image every 5 s.
  • the acquiring module 10 first saves the second frame image and the acquisition time corresponding to the second frame image, and then collects the display interface in a preset time interval.
  • the first frame image is stored in association with the acquisition time corresponding to the first frame image, and the comparison module 20 compares the first frame image with the second frame image Performing an alignment, the comparing module 20 comparing the first frame image with the second frame image is to display content in the first frame image and display content in the second frame image Compare.
  • each frame of the image is collected at a preset time interval, and the image of each frame is not collected in real time, so that the image collection is not used too frequently. If the image is collected too frequently, most of the collected images will be the same.
  • the image causes the processing of the processor to be too frequent, which wastes energy. Therefore, in this embodiment, two frames of images are collected at preset time intervals, which reduces the power consumption of the processor.
  • the determining module 30 is configured to determine whether the display content in the first frame image and the second frame image is the same;
  • the first frame image and the second frame are collected by the collecting module 10
  • the comparison module 20 compares the acquired first frame image with the display content of the second frame image, so that the determining module 30 determines the first frame image and the first Whether the display content in the two frame images is the same, and the determining module 30 determines whether the display content of the first frame image and the second frame image are the same:
  • Method 1 dividing the first frame image and the second frame image into equal small regions, respectively, and then respectively displaying the display content in each small region in the first frame image with the first
  • the display contents in the respective small areas of the same position in the first frame image and the second frame image reaches a preset similarity such as 90 %, determining that the first frame image and the two small regions of the same position in the second frame image are the same, and the same small region in the first frame image and the second frame image
  • a preset similarity such as 90 %
  • the second method is: calculating a gray value of each pixel in the first frame image and the second frame image, and using a gray value of each pixel in the first frame image and the second frame The gray values of each pixel in the same position in the image are subtracted to obtain respective gray difference values, and an average value of the absolute values of the respective gray difference values is calculated, and it is determined whether the average value is smaller than the preset threshold.
  • a value that is, comparing the average value with a preset threshold value, and determining, according to the comparison result, whether the first frame image and the second frame image are the same, wherein the average value is less than or equal to Determining, when the threshold value is determined, that the first frame image is the same as the display content in the second frame image, and when the average value is greater than the threshold value, determining the first frame image and the second frame The display content in the frame image is different.
  • the first adjustment module 40 is configured to adjust the brightness in the display interface to a first brightness if the first frame image is different from the display content in the second frame image;
  • the second adjustment module 50 is configured to adjust the brightness in the display interface to a second brightness if the first frame image is the same as the display content in the second frame image, where the first brightness is The brightness value is greater than the brightness value of the second brightness.
  • the first adjustment module 40 Adjusting the brightness of the display interface to the first brightness; if the first frame image is the same as the display content in the second frame image, indicating that the first frame image and the second frame image are not different, two frames The image is not changed in comparison with the display content, and is equivalent to displaying a static image in the display interface.
  • the second adjustment module 50 can directly adjust the brightness in the display interface to the second brightness, and the first brightness
  • the brightness value is greater than the brightness value of the second brightness, that is, when the display content of the first frame image and the second frame image is the same, the brightness in the display interface is dimmed, thereby reducing energy. Consumption.
  • a preferred application scenario is: when the display device is a monitoring device, the monitoring device first collects a second frame image, and stores the second frame image, and then collects the current first frame in the display interface. And comparing the display content in the first frame image with the display content in the second frame image according to the comparison between the first frame image and the display content in the second frame image.
  • the brightness of the display interface is adjusted accordingly, and when the two images in the display interface are the same image, the brightness of the display interface is dimmed, that is, when the display screen in the display interface does not change, the display screen is equivalent to
  • the static picture at this time, keeps the dark screen mode, and the two frames of the image in the display interface are different images, that is, when the display interface is a dynamic picture, the brightness of the display interface is brightened for the user to view the monitoring.
  • the monitoring screen of the device does not need to maintain a bright display state at all times, and dims the brightness when the display screen is a static screen, which reduces the power consumption of the display device
  • the brightness adjustment device of the display interface collects the image displayed in the display interface at a preset time interval, compares the currently acquired first frame image with the second frame image collected last time, and compares the current acquisition. Comparing the first frame image with the last acquired second frame image, if the first frame image is different from the display content in the second frame image, adjusting the brightness in the display interface to a brightness, if the first frame image is the same as the display content in the second frame image, adjusting the brightness in the display interface to the second brightness instead of mechanically depending on the ambient brightness on the display interface The brightness is adjusted.
  • the present invention adjusts the display brightness of the display interface by comparing the display contents of the two frames of images in the display interface, thereby improving the intelligence of brightness adjustment in the display interface.
  • the determination module 30 includes :
  • a first calculation sub-module 31 configured to calculate a gray value of each pixel in the first frame image and the second frame image
  • a second calculation sub-module 32 configured to calculate a gray-scale difference value of each pixel in the first frame image and the second frame image
  • a third calculation sub-module 33 configured to calculate an average value of the absolute values of the gray-scale difference values
  • the first calculating sub-module 31 respectively calculates each pixel point in the first frame image and the second frame image. a grayscale value
  • the first calculation sub-module 31 calculates a grayscale value of each pixel point in the first frame image and the second frame image, which is described in detail below, in obtaining the first
  • the second calculation sub-module 32 calculates the gray of each pixel in the first frame image and the second frame image.
  • the third calculation sub-module 33 calculates an absolute value corresponding to each gradation difference value, thereby indicating a change in the display content of the same position in the first frame image and the second frame image, and each of the calculated absolute values Calculate the average value, that is, the pair of grayscale differences
  • the absolute values are summed, and the obtained sum is divided by the number corresponding to each pixel point, and the average value of each gray difference value is obtained.
  • the first frame image and the image are obtained according to the average value.
  • the second calculation sub-module 32 calculates a gray-scale difference value of each pixel point in the first frame image and the second frame image, that is, a gray level of each pixel in the first frame image.
  • the values a 11 ... a mn are subtracted from the gray values b 11 ... b mn of each pixel at the same position in the second frame image to obtain respective gray difference values.
  • the third calculating sub-module 33 calculates an average value according to the absolute values corresponding to the respective gray-scale differences, the average value is:
  • the difference between the first frame image and the second frame image can be known according to the average value.
  • the determining sub-module 34 is configured to determine whether the average value is less than a preset threshold, where the first frame image and the second frame image are determined when the average value is less than or equal to the threshold value The display content is the same.
  • the determining sub-module 34 compares the average value with a preset threshold value, and if the average value is less than or equal to the threshold value, the first frame image is The second frame image has a small difference, and the first frame image is considered to be the same as the second frame image, and the display content of the first frame image and the second frame image is determined to be the same; If the average value is greater than the threshold value, the difference between the first frame image and the second frame image is large, and the first frame image and the second frame image are considered to be different. Determining that the first frame image is different from the display content in the second frame image.
  • the gray value of each pixel in the first frame image and the second frame image is calculated by the second calculating sub-module 32, and then calculated by the third calculating sub-module 33 according to the Calculating an average value of gray values of the first frame image and the second frame image, and determining the average value of the gray value of the first frame image and the second frame image, and finally determining the submodule Determining, by the calculated average value, a difference between the first frame image and the second frame image to determine whether the display content in the first frame image and the second frame image is the same by using the average value And improving the accuracy of determining whether the display content of the first frame image and the second frame image is the same.
  • the calculation sub-module 31 include:
  • the obtaining unit 311 is configured to acquire each pixel point in the first frame image and the second frame image;
  • a determining unit 312, configured to determine a color value of each of the three primary colors of each of the pixel points
  • the calculation sub-module 31 calculates a gray value of each pixel in the first frame image and the second frame image, where the acquiring unit 311 acquires the first frame image. And the acquiring unit 311 determines the first frame image with each pixel point in the second frame image
  • the color value of each of the three primary colors corresponding to each pixel in the second frame image is understood to be that the color values of each of the three primary colors are RGB (red R, green G, blue B) The color value corresponding to each of the three colors, that is, the red pixel value, the blue pixel value, and the green pixel value.
  • the calculating unit 313 is configured to weight average the color values of each of the three primary colors of the respective pixel points and the weight coefficients corresponding to each of the preset three primary colors to obtain gray values of the respective pixel points.
  • the determining unit 312 determines a color value of each of the three primary colors of each pixel, and the calculating unit 313 separately marks each pixel according to a weight coefficient corresponding to each of the three primary colors.
  • the color values of each of the three primary colors are weighted and averaged with the weight coefficients corresponding to each of the preset three primary colors to obtain a gray value of each pixel.
  • the color values corresponding to the pixel points are Red pixel value, blue pixel value, green pixel value, at this time, determine a red pixel value, a blue pixel value, a green pixel value, and then obtain a weight coefficient corresponding to each primary color, for example, a red corresponding weight coefficient is 0.3, blue The weight coefficient corresponding to the color is 0.59, and the weight coefficient corresponding to the green color is 0.11.
  • the gray value of each pixel is calculated by the color value of each of the three primary colors of each pixel, and the weight coefficient corresponding to each of the preset three primary colors, thereby realizing the display interface.
  • the color image in the image is converted into a grayscale image for processing, and the accuracy of the comparison between the display content of the first frame image and the second frame image is improved.
  • the second adjustment module 50 includes:
  • the update sub-module 51 is configured to update the two frames of the display interface in the same number of times if the display content of the first frame image and the second frame image are the same;
  • the adjustment sub-module 52 is further configured to adjust the brightness in the display interface to the second brightness when the two frames of the display interface reach the preset number of times consecutively the same number of times.
  • the display content in the first frame image and the second frame image is the same, and the update submodule 51 updates the display.
  • the two sub-frame images in the interface are consecutively the same number of times, and the adjustment sub-module 52 adjusts the brightness in the display interface to the second brightness when the two frames of the display interface are consecutively the same number of times in the display interface.
  • the first frame image in the display interface is the same as the display content in the second frame image, and the two frames in the system have been the same before, and the same number of times reaches the preset number of times, such as 5
  • the adjustment sub-module 52 adjusts the brightness in the display interface to the second brightness, instead of adjusting the brightness in the display interface to the second, instead of displaying the same content in the two frames of the image in the display interface.
  • Brightness when two frames in the display interface are the same image, and the same number of times reaches the preset number of times, the brightness in the display interface is adjusted to the second brightness, thereby reducing The consumption of small energy and the frequent adjustment of the brightness in the display screen make the adjustment of the brightness in the display interface more intelligent.

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Abstract

一种显示界面的亮度调整方法,相隔预设时间间隔采集显示界面中显示的图像;将当前采集的第一帧图像与上次采集的第二帧图像进行比对;判断所述第一帧图像与所述第二帧图像中的显示内容是否相同;若所述第一帧图像与所述第二帧图像中的显示内容不同,则将所述显示界面中的亮度调整为第一亮度;若所述第一帧图像与所述第二帧图像中的显示内容相同,则将所述显示界面中的亮度调整为第二亮度,其中,所述第一亮度的亮度值大于所述第二亮度的亮度值。还公开了一种显示界面的亮度调整装置。该方法及装置提高了显示界面中亮度调整的智能性。

Description

显示界面的亮度调整方法及装置 技术领域
本发明涉及多媒体技术领域,尤其涉及一种显示界面的亮度调整方法及装置。
背景技术
现有的显示设备对背光亮度调整方式,一般都是通过环境的亮度以调整显示界面的显示亮度,而这种亮度调整方式,仅仅是机械的根据环境亮度对显示界面中的亮度进行调整,即在显示界面处于光线阴暗的环境中,显示界面的显示亮度比处于光线明亮的环境中高,但是当显示界面中处于静态画面时,也就是显示界面中的显示内容没有变化时,用户可能没有在使用显示设备,此时若保持亮度较高的显示状态,会导致显示设备的耗电量大,显然,这种显示亮度调整方式智能性较低。
发明内容
本发明的主要目的在于提出一种显示界面的亮度调整方法及装置,旨在解决传统的显示亮度调整方式,智能性较低的技术问题。
为实现上述目的,本发明提供的一种显示界面的亮度调整方法,所述显示界面的亮度调整方法包括以下步骤:
相隔预设时间间隔采集显示界面中显示的图像;
将当前采集的第一帧图像与上次采集的第二帧图像进行比对;
获取所述第一帧图像与所述第二帧图像中的各个像素点;
确定各个所述像素点的三原色中每种原色的色值;
将各个所述像素点的三原色中每种原色的色值与预设的三原色中每种原色对应的权重系数进行加权平均,以得到各个像素点的灰度值;
计算所述第一帧图像与所述第二帧图像中位置相同的各个像素点的灰度差值;
计算所述灰度差值的绝对值的平均值;
判断所述平均值是否小于预设门限值,其中,所述平均值小于或等于所 述门限值时,确定所述第一帧图像与所述第二帧图像中的显示内容相同;
若所述第一帧图像与所述第二帧图像中的显示内容不同,则将所述显示界面中的亮度调整为第一亮度;
若所述第一帧图像与所述第二帧图像中的显示内容相同,则更新显示界面中两帧图像连续相同的次数;
在所述显示界面中两帧图像连续相同的次数达到预设次数时,将所述显示界面中的亮度调整为第二亮度,其中,所述第一亮度的亮度值大于所述第二亮度的亮度值。
此外,为实现上述目的,本发明还提出一种显示界面的亮度调整方法,所述显示界面的亮度调整方法包括以下步骤:
相隔预设时间间隔采集显示界面中显示的图像;
将当前采集的第一帧图像与上次采集的第二帧图像进行比对;
判断所述第一帧图像与所述第二帧图像中的显示内容是否相同;
若所述第一帧图像与所述第二帧图像中的显示内容不同,则将所述显示界面中的亮度调整为第一亮度;
若所述第一帧图像与所述第二帧图像中的显示内容相同,则将所述显示界面中的亮度调整为第二亮度,其中,所述第一亮度的亮度值大于所述第二亮度的亮度值。
此外,为实现上述目的,本发明还提出一种显示界面的亮度调整装置,所述显示界面的亮度调整装置包括:
采集模块,用于相隔预设时间间隔采集显示界面中显示的图像;
比对模块,用于将当前采集的第一帧图像与上次采集的第二帧图像进行比对;
判断模块,用于判断所述第一帧图像与所述第二帧图像中的显示内容是否相同;
第一调整模块,用于若所述第一帧图像与所述第二帧图像中的显示内容不同,则将所述显示界面中的亮度调整为第一亮度;
第二调整模块,用于若所述第一帧图像与所述第二帧图像中的显示内容 相同,则将所述显示界面中的亮度调整为第二亮度,其中,所述第一亮度的亮度值大于所述第二亮度的亮度值。
本发明提出的显示界面的亮度调整方法及装置,相隔预设时间间隔采集显示界面中显示的图像,将当前采集的第一帧图像与上次采集的第二帧图像进行比对,并将当前采集的第一帧图像与上次采集的第二帧图像进行比对,若所述第一帧图像与所述第二帧图像中的显示内容不同,则将所述显示界面中的亮度调整为第一亮度,若所述第一帧图像与所述第二帧图像中的显示内容相同,则将所述显示界面中的亮度调整为第二亮度,而不是机械的根据环境亮度对显示界面中的亮度进行调整,本发明通过比对显示界面中两帧图像的显示内容,以调整显示界面的显示亮度,提高了显示界面中亮度调整的智能性。
附图说明
图1为本发明显示界面的亮度调整方法较佳实施例的流程示意图;
图2为本发明判断所述第一帧图像与所述第二帧图像中的显示内容是否相同较佳实施例的流程示意图;
图3为本发明计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值较佳实施例的流程示意图;
图4为本发明将所述显示界面中的亮度调整为第二亮度较佳实施例的流程示意图;
图5为本发明显示界面的亮度调整装置较佳实施例的功能模块示意图;
图6为图5中判断模块的细化功能模块示意图;
图7为图6中第一计算子模块的细化功能模块示意图;
图8为图5中第二调整模块的细化功能模块示意图。
本发明目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。
具体实施方式
应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限 定本发明。
本发明提供一种显示界面的亮度调整方法。
参照图1,图1为本发明显示界面的亮度调整方法第一实施例的流程示意图。
本实施例提出一种显示界面的亮度调整方法,所述显示界面的亮度调整方法包括:
步骤S10,相隔预设时间间隔采集显示界面中显示的图像;
步骤S20,将当前采集的第一帧图像与上次采集的第二帧图像进行比对;
在本实施例中,相隔预设时间间隔采集显示界面中显示的图像,然后将当前采集到的第一帧图像与上次采集的第二帧图像进行比对。采集图像可通过屏幕截图或屏幕快照的方式进行采集。优选相隔预设时间间隔采集图像,所述预设时间间隔根据具体情况进行设置,如设置每5s采集一帧图像。在显示界面中采集第二帧图像时,先将所述第二帧图像与所述第二帧图像对应的获取时间关联保存,然后在预设时间间隔内采集所述显示界面中的第一帧图像,再将所述第一帧图像与所述第一帧图像对应的获取时间关联保存,并将所述第一帧图像与所述第二帧图像进行比对,所述将所述第一帧图像与所述第二帧图像进行比对是将所述第一帧图像中的显示内容与所述第二帧图像中的显示内容进行比对。本实施例相隔预设时间间隔采集每帧图像,而不需要实时采集每帧图像,使得图像的采集不用太过频繁,若图像的采集太多频繁,会出现采集到的图像大部分是相同的图像,而导致处理器的处理太过频繁,浪费了能耗,因此,本实施例中相隔预设时间间隔采集两帧图像,降低了处理器的功耗。
步骤S30,判断所述第一帧图像与所述第二帧图像中的显示内容是否相同;
在本实施例中,在采集到所述第一帧图像和所述第二帧图像后,将采集的所述第一帧图像与所述第二帧图像的显示内容进行比对,以判断所述第一帧图像与所述第二帧图像中的显示内容是否相同,所述判断所述第一帧图像与所述第二帧图像中的显示内容是否相同的方式包括:
1)方式一、分别将所述第一帧图像与所述第二帧图像划分为各个相等的小区域,然后分别将所述第一帧图像中的各个小区域中的显示内容与所述第 二帧图像中相同位置的各个小区域中的显示内容进行比对,在所述第一帧图像与所述第二帧图像中相同位置的两个小区域的相似度达到预设相似度如90%时,确定所述第一帧图像与所述第二帧图像中相同位置的两个小区域是相同的,而在所述第一帧图像与所述第二帧图像中相同的小区域占图像中各个小区域总数的比例达到预设比例如80%时,确定所述第一帧图像与所述第二帧图像中的显示内容相同,相反的,在所述第一帧图像与所述第二帧图像中相同的小区域占图像中各个小区域总数的比例小于预设比例如80%时,确定所述第一帧图像与所述第二帧图像中的显示内容不相同。
2)方式二、计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值,将所述第一帧图像中每个像素点的灰度值与所述第二帧图像中相同位置的每个像素点的灰度值进行相减,得到各个灰度差值,计算各个灰度差值的绝对值的平均值,判断所述平均值是否小于所述预设门限值,也就是将所述平均值与预设门限值进行比对,根据比对结果确定所述第一帧图像与所述第二帧图像是否相同,其中,所述平均值小于或等于所述门限值时,确定所述第一帧图像与所述第二帧图像中的显示内容相同,所述平均值大于所述门限值时,确定所述第一帧图像与所述第二帧图像中的显示内容不相同。
步骤S40,若所述第一帧图像与所述第二帧图像中的显示内容不同,则将所述显示界面中的亮度调整为第一亮度;
步骤S50,若所述第一帧图像与所述第二帧图像中的显示内容相同,则将所述显示界面中的亮度调整为第二亮度,其中,所述第一亮度的亮度值大于所述第二亮度的亮度值。
在本实施例中,若所述第一帧图像与所述第二帧图像中的显示内容不同,说明所述第一帧图像与所述第二帧图像有差异,两帧图像相比显示内容发生了变化,相当于显示界面中显示的是动态画面,此时,将显示界面的亮度调整为第一亮度;若所述第一帧图像与所述第二帧图像中的显示内容相同,说明所述第一帧图像与所述第二帧图像没有差异,两帧图像相比显示内容没有发生变化,相当于显示界面中显示的是静态画面,可直接将所述显示界面中的亮度调整为第二亮度,而所述第一亮度的亮度值大于所述第二亮度的亮度值,也就是说在所述第一帧图像与所述第二帧图像中的显示内容相同时,将显示界面中的亮度调暗,从而降低了能量的消耗。
在本实施例中,优选的应用场景是:当显示设备是监控设备时,所述监控设备先采集第二帧图像,并存储所述第二帧图像,再采集显示界面中当前的第一帧图像,并将所述第一帧图像中的显示内容与所述第二帧图像中的显示内容进行比对,根据所述第一帧图像与所述第二帧图像中的显示内容的比对结果相应调整显示界面的亮度,实现了在显示界面中进行比对的两帧图像是相同图像时,将显示界面的亮度调暗,也就是显示界面中的显示画面没有变化时,显示画面相当于是静态画面,此时保持暗屏模式,而在显示界面中进行比对的两帧图像是不同图像,即显示界面是动态画面时,才将显示界面的亮度调亮,以供用户查看所述监控设备的监控画面,而不需要时刻保持较亮的显示状态,在显示画面是静态画面时将亮度调暗,降低了显示设备的耗电量。
本实施例提出的显示界面的亮度调整方法,相隔预设时间间隔采集显示界面中显示的图像,将当前采集的第一帧图像与上次采集的第二帧图像进行比对,并将当前采集的第一帧图像与上次采集的第二帧图像进行比对,若所述第一帧图像与所述第二帧图像中的显示内容不同,则将所述显示界面中的亮度调整为第一亮度,若所述第一帧图像与所述第二帧图像中的显示内容相同,则将所述显示界面中的亮度调整为第二亮度,而不是机械的根据环境亮度对显示界面中的亮度进行调整,本发明通过比对显示界面中两帧图像的显示内容,以调整显示界面的显示亮度,提高了显示界面中亮度调整的智能性。
进一步地,为了提高显示界面的亮度调整的准确性,基于第一实施例提出本发明显示界面的亮度调整方法的第二实施例,在本实施例中,参照图2,所述步骤S30包括:
步骤S31,计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值;
步骤S32,计算所述第一帧图像与所述第二帧图像中位置相同的各个像素点的灰度差值;
步骤S33,计算所述灰度差值的绝对值的平均值;
在本实施例中,采集到所述第一帧图像和所述第二帧图像后,分别计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值,所述计算所述第 一帧图像与所述第二帧图像中各个像素点的灰度值的具体实施方式在下文中详述,在得到所述第一帧图像与所述第二帧图像中各个像素点的灰度值后,计算所述第一帧图像与所述第二帧图像中位置相同的各个像素点的灰度差值,也就是分别将所述第一帧图像中每个像素点的灰度值与所述第二帧图像中相同位置的每个像素点的灰度值进行相减,得到各个灰度差值,然后计算各个灰度差值对应的绝对值,以此表示第一帧图像与第二帧图像中同一位置的显示内容的变化,对计算的各个绝对值计算平均值,也就是将各个灰度差值对应的绝对值进行求和,然后将得到的总和除以各个像素点对应的个数,得到各个灰度差值的平均值,最后根据所述平均值即可得知所述第一帧图像与所述第二帧图像的差异,为更好理解本实施例,举例如下:
当所述第一帧图像中各个像素点对应的灰度值为:
Figure PCTCN2016085262-appb-000001
当所述第二帧图像中各个像素点对应的灰度值为:
Figure PCTCN2016085262-appb-000002
计算所述第一帧图像与所述第二帧图像中位置相同的各个像素点的灰度差值,即将所述第一帧图像中每个像素点的灰度值a11......amn与所述第二帧图像中相同位置的每个像素点的灰度值b11......bmn进行相减,得到各个灰度差值,然后根据各个灰度差值对应的绝对值计算平均值,所述平均值为:
Figure PCTCN2016085262-appb-000003
最后根据所述平均值即可得知所述第一帧图像与所述第二帧图像的差异。
步骤S34,判断所述平均值是否小于预设门限值,其中,所述平均值小于或等于所述门限值时,确定所述第一帧图像与所述第二帧图像中的显示内容相同。
在本实施例中,将所述平均值与预设门限值进行比对,若所述平均值小于或等于所述门限值时,说明所述第一帧图像与所述第二帧图像差异较小,可认为所述第一帧图像与所述第二帧图像无差异,此时确定所述第一帧图像与所述第二帧图像中的显示内容相同;若所述平均值大于所述门限值时,说 明所述第一帧图像与所述第二帧图像差异较大,认为所述第一帧图像与所述第二帧图像有差异,此时确定所述第一帧图像与所述第二帧图像中的显示内容不相同。
在本实施例中,通过计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值,并根据所述第一帧图像与所述第二帧图像中各个像素点的灰度差值,计算所述第一帧图像与所述第二帧图像的灰度值的平均值,最终根据计算得到的平均值确定所述第一帧图像与所述第二帧图像的差异,以通过所述平均值确定所述第一帧图像与所述第二帧图像中的显示内容是否相同,提高了确定所述第一帧图像与所述第二帧图像中显示内容是否相同的准确性。
进一步地,为了提高显示界面的亮度调整的准确性,基于第二实施例提出本发明显示界面的亮度调整方法的第三实施例,在本实施例中,参照图3,所述步骤S31包括:
步骤S311,获取所述第一帧图像与所述第二帧图像中的各个像素点;
步骤S312,获取所述第一帧图像与所述第二帧图像中的各个像素点;
在本实施例中,所述计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值的方式为:先获取所述第一帧图像与所述第二帧图像中的各个像素点,然后确定所述第一帧图像与所述第二帧图像中每个像素点对应的三原色中每种原色的色值,可以理解的是,所述三原色中每种原色的色值是RGB(红R、绿G、蓝B)三种颜色中各个颜色对应的色值、即红色像素值、蓝色像素值、绿色像素值。
步骤S313,将各个所述像素点的三原色中每种原色的色值与预设的三原色中每种原色对应的权重系数进行加权平均,以得到各个像素点的灰度值。
在获取到每个像素点时,确定每个像素点的三原色中每种原色的色值,然后根据三原色中每种原色对应的权重系数,分别将各个像素点的三原色中每种原色的色值与预设的三原色中每种原色对应的所述权重系数进行加权平均,以得到每个像素点的灰度值,例如,像素点对应的各种色值有红色像素值、蓝色像素值、绿色像素值,此时确定红色像素值、蓝色像素值、绿色像素值,然后获取每种原色对应的权重系数,例如:红色对应的权重系数为0.3、蓝色对应的权重系数为0.59、绿色对应的权重系数为0.11,在确定了三原色 中各种原色对应的权重系数后,即可将所述像素点的三原色中每种原色对应的所述权重系数与每个像素点的三原色中每种原色的色值进行加权平均,以得到所述像素点的灰度值,计算公式为:Grey=0.3*red+0.59*greed+0.11*blue,根据所述计算公式,即可计算出每个像素点对应的灰度值。
在本实施例中,通过每个像素点的三原色中每种原色的色值,以及预设的三原色中每种原色对应的权重系数计算得到每个像素点的灰度值,实现了将显示界面中的彩色图像转化为灰度图像进行处理,提高了所述第一帧图像与所述第二帧图像中显示内容比对的准确性。
进一步地,为了提高显示界面的亮度调整的灵活性,基于第一、第二和第三实施例提出本发明显示界面的亮度调整方法的第四实施例,在本实施例中,参照图4,所述步骤S50包括:
步骤S51,若所述第一帧图像与所述第二帧图像中的显示内容相同,更新显示界面中两帧图像连续相同的次数;
步骤S52,在所述显示界面中两帧图像连续相同的次数达到预设次数时,则将所述显示界面中的亮度调整为第二亮度。
在本实施例中,为了减小能量的消耗以及显示画面中亮度的频繁调整,优选在所述第一帧图像与所述第二帧图像中的显示内容相同,更新显示界面中两帧图像连续相同的次数,并在所述显示界面中两帧图像连续相同的次数达到预设次数时,才将所述显示界面中的亮度调整为第二亮度,相当于是所述显示界面中所述第一帧图像与所述第二帧图像中的显示内容相同,且***中之前已经有两帧图像都相同,且连续相同的次数达到预设次数如5次时,才将所述显示界面中的亮度调整为第二亮度,而不是在显示界面中两帧图像中的显示内容相同,就将显示界面中的亮度调整为第二亮度,通过显示界面中两帧都是相同图像,且连续相同的次数达到预设次数时,才将所述显示界面中的亮度调整为第二亮度,从而减小能量的消耗以及显示画面中亮度的频繁调整,使得显示界面中亮度的调整更加智能。
本发明进一步提供一种显示界面的亮度调整装置。
参照图5,图5为本发明显示界面的亮度调整装置第一实施例的功能模块 示意图。
需要强调的是,对本领域的技术人员来说,图5所示功能模块图仅仅是一个较佳实施例的示例图,本领域的技术人员围绕图5所示的显示界面的亮度调整装置的功能模块,可轻易进行新的功能模块的补充;各功能模块的名称是自定义名称,仅用于辅助理解该显示界面的亮度调整装置的各个程序功能块,不用于限定本发明的技术方案,本发明技术方案的核心是,各自定义名称的功能模块所要达成的功能。
本实施例提出一种显示界面的亮度调整装置,所述显示界面的亮度调整装置包括:
采集模块10,用于相隔预设时间间隔采集显示界面中显示的图像;
比对模块20,用于将当前采集的第一帧图像与上次采集的第二帧图像进行比对;
在本实施例中,所述采集模块10相隔预设时间间隔采集显示界面中显示的图像,然后所述比对模块20将当前采集到的第一帧图像与上次采集的第二帧图像进行比对。所述采集模块10采集图像可通过屏幕截图或屏幕快照的方式进行采集。所述采集模块10优选相隔预设时间间隔采集图像,所述预设时间间隔根据具体情况进行设置,如设置每5s采集一帧图像。所述采集模块10在显示界面中采集第二帧图像时,先将所述第二帧图像与所述第二帧图像对应的获取时间关联保存,然后在预设时间间隔内采集所述显示界面中的第一帧图像,再将所述第一帧图像与所述第一帧图像对应的获取时间关联保存,并且所述比对模块20将所述第一帧图像与所述第二帧图像进行比对,所述比对模块20将所述第一帧图像与所述第二帧图像进行比对是将所述第一帧图像中的显示内容与所述第二帧图像中的显示内容进行比对。本实施例相隔预设时间间隔采集每帧图像,而不需要实时采集每帧图像,使得图像的采集不用太过频繁,若图像的采集太多频繁,会出现采集到的图像大部分是相同的图像,而导致处理器的处理太过频繁,浪费了能耗,因此,本实施例中相隔预设时间间隔采集两帧图像,降低了处理器的功耗。
判断模块30,用于判断所述第一帧图像与所述第二帧图像中的显示内容是否相同;
在本实施例中,在所述采集模块10采集到所述第一帧图像和所述第二帧 图像后,所述比对模块20将采集的所述第一帧图像与所述第二帧图像的显示内容进行比对,以供所述判断模块30判断所述第一帧图像与所述第二帧图像中的显示内容是否相同,所述判断模块30判断所述第一帧图像与所述第二帧图像中的显示内容是否相同的方式包括:
1)方式一、分别将所述第一帧图像与所述第二帧图像划分为各个相等的小区域,然后分别将所述第一帧图像中的各个小区域中的显示内容与所述第二帧图像中相同位置的各个小区域中的显示内容进行比对,在所述第一帧图像与所述第二帧图像中相同位置的两个小区域的相似度达到预设相似度如90%时,确定所述第一帧图像与所述第二帧图像中相同位置的两个小区域是相同的,而在所述第一帧图像与所述第二帧图像中相同的小区域占图像中各个小区域总数的比例达到预设比例如80%时,确定所述第一帧图像与所述第二帧图像中的显示内容相同,相反的,在所述第一帧图像与所述第二帧图像中相同的小区域占图像中各个小区域总数的比例小于预设比例如80%时,确定所述第一帧图像与所述第二帧图像中的显示内容不相同。
2)方式二、计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值,将所述第一帧图像中每个像素点的灰度值与所述第二帧图像中相同位置的每个像素点的灰度值进行相减,得到各个灰度差值,计算各个灰度差值的绝对值的平均值,判断所述平均值是否小于所述预设门限值,也就是将所述平均值与预设门限值进行比对,根据比对结果确定所述第一帧图像与所述第二帧图像是否相同,其中,所述平均值小于或等于所述门限值时,确定所述第一帧图像与所述第二帧图像中的显示内容相同,所述平均值大于所述门限值时,确定所述第一帧图像与所述第二帧图像中的显示内容不相同。
第一调整模块40,用于若所述第一帧图像与所述第二帧图像中的显示内容不同,则将所述显示界面中的亮度调整为第一亮度;
第二调整模块50,用于若所述第一帧图像与所述第二帧图像中的显示内容相同,则将所述显示界面中的亮度调整为第二亮度,其中,所述第一亮度的亮度值大于所述第二亮度的亮度值。
在本实施例中,若所述第一帧图像与所述第二帧图像中的显示内容不同,说明所述第一帧图像与所述第二帧图像有差异,两帧图像相比显示内容发生了变化,相当于显示界面中显示的是动态画面,此时,所述第一调整模块40 将显示界面的亮度调整为第一亮度;若所述第一帧图像与所述第二帧图像中的显示内容相同,说明所述第一帧图像与所述第二帧图像没有差异,两帧图像相比显示内容没有发生变化,相当于显示界面中显示的是静态画面,所述第二调整模块50可直接将所述显示界面中的亮度调整为第二亮度,而所述第一亮度的亮度值大于所述第二亮度的亮度值,也就是说在所述第一帧图像与所述第二帧图像中的显示内容相同时,将显示界面中的亮度调暗,从而降低了能量的消耗。
在本实施例中,优选的应用场景是:当显示设备是监控设备时,所述监控设备先采集第二帧图像,并存储所述第二帧图像,再采集显示界面中当前的第一帧图像,并将所述第一帧图像中的显示内容与所述第二帧图像中的显示内容进行比对,根据所述第一帧图像与所述第二帧图像中的显示内容的比对结果相应调整显示界面的亮度,实现了在显示界面中进行比对的两帧图像是相同图像时,将显示界面的亮度调暗,也就是显示界面中的显示画面没有变化时,显示画面相当于是静态画面,此时保持暗屏模式,而在显示界面中进行比对的两帧图像是不同图像,即显示界面是动态画面时,才将显示界面的亮度调亮,以供用户查看所述监控设备的监控画面,而不需要时刻保持较亮的显示状态,在显示画面是静态画面时将亮度调暗,降低了显示设备的耗电量。
本实施例提出的显示界面的亮度调整装置,相隔预设时间间隔采集显示界面中显示的图像,将当前采集的第一帧图像与上次采集的第二帧图像进行比对,并将当前采集的第一帧图像与上次采集的第二帧图像进行比对,若所述第一帧图像与所述第二帧图像中的显示内容不同,则将所述显示界面中的亮度调整为第一亮度,若所述第一帧图像与所述第二帧图像中的显示内容相同,则将所述显示界面中的亮度调整为第二亮度,而不是机械的根据环境亮度对显示界面中的亮度进行调整,本发明通过比对显示界面中两帧图像的显示内容,以调整显示界面的显示亮度,提高了显示界面中亮度调整的智能性。
进一步地,为了提高显示界面的亮度调整的准确性,基于第一实施例提出本发明显示界面的亮度调整装置的第二实施例,在本实施例中,参照图6,所述判断模块30包括:
第一计算子模块31,用于计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值;
第二计算子模块32,用于计算所述第一帧图像与所述第二帧图像中位置相同的各个像素点的灰度差值;
第三计算子模块33,用于计算所述灰度差值的绝对值的平均值;
在本实施例中,采集到所述第一帧图像和所述第二帧图像后,所述第一计算子模块31分别计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值,所述第一计算子模块31计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值的具体实施方式在下文中详述,在得到所述第一帧图像与所述第二帧图像中各个像素点的灰度值后,所述第二计算子模块32计算所述第一帧图像与所述第二帧图像中位置相同的各个像素点的灰度差值,也就是分别将所述第一帧图像中每个像素点的灰度值与所述第二帧图像中相同位置的每个像素点的灰度值进行相减,得到各个灰度差值,然后所述第三计算子模块33计算各个灰度差值对应的绝对值,以此表示第一帧图像与第二帧图像中同一位置的显示内容的变化,对计算的各个绝对值计算平均值,也就是将各个灰度差值对应的绝对值进行求和,然后将得到的总和除以各个像素点对应的个数,得到各个灰度差值的平均值,最后根据所述平均值即可得知所述第一帧图像与所述第二帧图像的差异,为更好理解本实施例,举例如下:
当所述第一帧图像中各个像素点对应的灰度值为:
Figure PCTCN2016085262-appb-000004
当所述第二帧图像中各个像素点对应的灰度值为:
Figure PCTCN2016085262-appb-000005
所述第二计算子模块32计算所述第一帧图像与所述第二帧图像中位置相同的各个像素点的灰度差值,即将所述第一帧图像中每个像素点的灰度值a11......amn与所述第二帧图像中相同位置的每个像素点的灰度值b11......bmn进行相减,得到各个灰度差值,然后所述第三计算子模块33根据各个灰度差值对应的绝对值计算平均值,所述平均值为:
Figure PCTCN2016085262-appb-000006
最后根据所述平均值即可得知所述第一帧图像与所述第二帧图像的差异。
判断子模块34,用于判断所述平均值是否小于预设门限值,其中,所述平均值小于或等于所述门限值时,确定所述第一帧图像与所述第二帧图像中的显示内容相同。
在本实施例中,所述判断子模块34将所述平均值与预设门限值进行比对,若所述平均值小于或等于所述门限值时,说明所述第一帧图像与所述第二帧图像差异较小,可认为所述第一帧图像与所述第二帧图像无差异,此时确定所述第一帧图像与所述第二帧图像中的显示内容相同;若所述平均值大于所述门限值时,说明所述第一帧图像与所述第二帧图像差异较大,认为所述第一帧图像与所述第二帧图像有差异,此时确定所述第一帧图像与所述第二帧图像中的显示内容不相同。
在本实施例中,通过所述第二计算子模块32计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值,再由所述第三计算子模块33根据所述第一帧图像与所述第二帧图像中各个像素点的灰度差值,计算所述第一帧图像与所述第二帧图像的灰度值的平均值,最终所述判断子模块34根据计算得到的平均值确定所述第一帧图像与所述第二帧图像的差异,以通过所述平均值确定所述第一帧图像与所述第二帧图像中的显示内容是否相同,提高了确定所述第一帧图像与所述第二帧图像中显示内容是否相同的准确性。
进一步地,为了提高显示界面的亮度调整的准确性,基于第二实施例提出本发明显示界面的亮度调整装置的第三实施例,在本实施例中,参照图7,所述计算子模块31包括:
获取单元311,用于获取所述第一帧图像与所述第二帧图像中的各个像素点;
确定单元312,用于确定各个所述像素点的三原色中每种原色的色值;
在本实施例中,所述计算子模块31计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值的方式为:所述获取单元311获取所述第一帧图像与所述第二帧图像中的各个像素点,所述获取单元311确定所述第一帧图像 与所述第二帧图像中每个像素点对应的三原色中每种原色的色值,可以理解的是,所述三原色中每种原色的色值是RGB(红R、绿G、蓝B)三种颜色中各个颜色对应的色值、即红色像素值、蓝色像素值、绿色像素值。
计算单元313,用于将各个所述像素点的三原色中每种原色的色值与预设的三原色中每种原色对应的权重系数进行加权平均,以得到各个像素点的灰度值。
在获取到每个像素点时,所述确定单元312确定每个像素点的三原色中每种原色的色值,所述计算单元313根据三原色中每种原色对应的权重系数,分别将各个像素点的三原色中每种原色的色值与预设的三原色中每种原色对应的所述权重系数进行加权平均,以得到每个像素点的灰度值,例如,像素点对应的各种色值有红色像素值、蓝色像素值、绿色像素值,此时确定红色像素值、蓝色像素值、绿色像素值,然后获取每种原色对应的权重系数,例如:红色对应的权重系数为0.3、蓝色对应的权重系数为0.59、绿色对应的权重系数为0.11,在确定了三原色中各种原色对应的权重系数后,即可将所述像素点的三原色中每种原色对应的所述权重系数与每个像素点的三原色中每种原色的色值进行加权平均,以得到所述像素点的灰度值,计算公式为:Grey=0.3*red+0.59*greed+0.11*blue,根据所述计算公式,即可计算出每个像素点对应的灰度值。
在本实施例中,通过每个像素点的三原色中每种原色的色值,以及预设的三原色中每种原色对应的权重系数计算得到每个像素点的灰度值,实现了将显示界面中的彩色图像转化为灰度图像进行处理,提高了所述第一帧图像与所述第二帧图像中显示内容比对的准确性。
进一步地,为了提高显示界面的亮度调整的灵活性,基于第一、第二和第三实施例提出本发明显示界面的亮度调整装置的第四实施例,在本实施例中,参照图8,所述第二调整模块50包括:
更新子模块51,用于若所述第一帧图像与所述第二帧图像中的显示内容相同,则更新显示界面中两帧图像连续相同的次数;
调整子模块52,还用于在所述显示界面中两帧图像连续相同的次数达到预设次数时,将所述显示界面中的亮度调整为第二亮度。
在本实施例中,为了减小能量的消耗以及显示画面中亮度的频繁调整,优选在所述第一帧图像与所述第二帧图像中的显示内容相同,所述更新子模块51更新显示界面中两帧图像连续相同的次数,并在所述显示界面中两帧图像连续相同的次数达到预设次数时,所述调整子模块52才将所述显示界面中的亮度调整为第二亮度,相当于是所述显示界面中所述第一帧图像与所述第二帧图像中的显示内容相同,且***中之前已经有两帧图像都相同,且连续相同的次数达到预设次数如5次时,所述调整子模块52才将所述显示界面中的亮度调整为第二亮度,而不是在显示界面中两帧图像中的显示内容相同,就将显示界面中的亮度调整为第二亮度,通过显示界面中两帧都是相同图像,且连续相同的次数达到预设次数时,才将所述显示界面中的亮度调整为第二亮度,从而减小能量的消耗以及显示画面中亮度的频繁调整,使得显示界面中亮度的调整更加智能。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其它变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其它要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个......”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上述本发明实施例序号仅仅为了描述,不代表实施例的优劣。
以上仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其它相关的技术领域,均同理包括在本发明的专利保护范围内。

Claims (11)

  1. 一种显示界面的亮度调整方法,其特征在于,所述显示界面的亮度调整方法包括以下步骤:
    相隔预设时间间隔采集显示界面中显示的图像;
    将当前采集的第一帧图像与上次采集的第二帧图像进行比对;
    获取所述第一帧图像与所述第二帧图像中的各个像素点;
    确定各个所述像素点的三原色中每种原色的色值;
    将各个所述像素点的三原色中每种原色的色值与预设的三原色中每种原色对应的权重系数进行加权平均,以得到各个像素点的灰度值;
    计算所述第一帧图像与所述第二帧图像中位置相同的各个像素点的灰度差值;
    计算所述灰度差值的绝对值的平均值;
    判断所述平均值是否小于预设门限值,其中,所述平均值小于或等于所述门限值时,确定所述第一帧图像与所述第二帧图像中的显示内容相同;
    若所述第一帧图像与所述第二帧图像中的显示内容不同,则将所述显示界面中的亮度调整为第一亮度;
    若所述第一帧图像与所述第二帧图像中的显示内容相同,则更新显示界面中两帧图像连续相同的次数;
    在所述显示界面中两帧图像连续相同的次数达到预设次数时,将所述显示界面中的亮度调整为第二亮度,其中,所述第一亮度的亮度值大于所述第二亮度的亮度值。
  2. 一种显示界面的亮度调整方法,其特征在于,所述显示界面的亮度调整方法包括以下步骤:
    相隔预设时间间隔采集显示界面中显示的图像;
    将当前采集的第一帧图像与上次采集的第二帧图像进行比对;
    判断所述第一帧图像与所述第二帧图像中的显示内容是否相同;
    若所述第一帧图像与所述第二帧图像中的显示内容不同,则将所述显示界面中的亮度调整为第一亮度;
    若所述第一帧图像与所述第二帧图像中的显示内容相同,则将所述显示界面中的亮度调整为第二亮度,其中,所述第一亮度的亮度值大于所述第二亮度的亮度值。
  3. 如权利要求2所述的显示界面的亮度调整方法,其特征在于,所述判断所述第一帧图像与所述第二帧图像中的显示内容是否相同的步骤包括:
    计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值;
    计算所述第一帧图像与所述第二帧图像中位置相同的各个像素点的灰度差值;
    计算所述灰度差值的绝对值的平均值;
    判断所述平均值是否小于预设门限值,其中,所述平均值小于或等于所述门限值时,确定所述第一帧图像与所述第二帧图像中的显示内容相同。
  4. 如权利要求3所述的显示界面的亮度调整方法,其特征在于,所述计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值的步骤包括:
    获取所述第一帧图像与所述第二帧图像中的各个像素点;
    确定各个所述像素点的三原色中每种原色的色值;
    将各个所述像素点的三原色中每种原色的色值与预设的三原色中每种原色对应的权重系数进行加权平均,以得到各个像素点的灰度值。
  5. 如权利要求2所述的显示界面的亮度调整方法,其特征在于,所述若所述第一帧图像与所述第二帧图像中的显示内容相同,则将所述显示界面中的亮度调整为第二亮度的步骤包括:
    若所述第一帧图像与所述第二帧图像中的显示内容相同,则更新显示界面中两帧图像连续相同的次数;
    在所述显示界面中两帧图像连续相同的次数达到预设次数时,将所述显示界面中的亮度调整为第二亮度。
  6. 如权利要求3所述的显示界面的亮度调整方法,其特征在于,所述若所述第一帧图像与所述第二帧图像中的显示内容相同,则将所述显示界面中 的亮度调整为第二亮度的步骤包括:
    若所述第一帧图像与所述第二帧图像中的显示内容相同,则更新显示界面中两帧图像连续相同的次数;
    在所述显示界面中两帧图像连续相同的次数达到预设次数时,将所述显示界面中的亮度调整为第二亮度。
  7. 一种显示界面的亮度调整装置,其特征在于,所述显示界面的亮度调整装置包括:
    采集模块,用于相隔预设时间间隔采集显示界面中显示的图像;
    比对模块,用于将当前采集的第一帧图像与上次采集的第二帧图像进行比对;
    判断模块,用于判断所述第一帧图像与所述第二帧图像中的显示内容是否相同;
    第一调整模块,用于若所述第一帧图像与所述第二帧图像中的显示内容不同,则将所述显示界面中的亮度调整为第一亮度;
    第二调整模块,用于若所述第一帧图像与所述第二帧图像中的显示内容相同,则将所述显示界面中的亮度调整为第二亮度,其中,所述第一亮度的亮度值大于所述第二亮度的亮度值。
  8. 如权利要求7所述的显示界面的亮度调整装置,其特征在于,所述判断模块包括:
    第一计算子模块,用于计算所述第一帧图像与所述第二帧图像中各个像素点的灰度值;
    第二计算子模块,用于计算所述第一帧图像与所述第二帧图像中位置相同的各个像素点的灰度差值;
    第三计算子模块,用于计算所述灰度差值的绝对值的平均值;
    判断子模块,用于判断所述平均值是否小于预设门限值,其中,所述平均值小于或等于所述门限值时,确定所述第一帧图像与所述第二帧图像中的显示内容相同。
  9. 如权利要求8所述的显示界面的亮度调整装置,其特征在于,所述第一计算子模块包括:
    获取单元,用于获取所述第一帧图像与所述第二帧图像中的各个像素点;
    确定单元,用于确定各个所述像素点的三原色中每种原色的色值;
    计算单元,用于将各个所述像素点的三原色中每种原色的色值与预设的三原色中每种原色对应的权重系数进行加权平均,以得到各个像素点的灰度值。
  10. 如权利要求7所述的显示界面的亮度调整装置,其特征在于,所述第二调整模块包括:
    更新子模块,用于若所述第一帧图像与所述第二帧图像中的显示内容相同,则更新显示界面中两帧图像连续相同的次数;
    调整子模块,还用于在所述显示界面中两帧图像连续相同的次数达到预设次数时,将所述显示界面中的亮度调整为第二亮度。
  11. 如权利要求8所述的显示界面的亮度调整装置,其特征在于,所述第二调整模块包括:
    更新子模块,用于若所述第一帧图像与所述第二帧图像中的显示内容相同,则更新显示界面中两帧图像连续相同的次数;
    调整子模块,还用于在所述显示界面中两帧图像连续相同的次数达到预设次数时,将所述显示界面中的亮度调整为第二亮度。
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