WO2019085299A1 - 一种图像处理方法及其设备 - Google Patents

一种图像处理方法及其设备 Download PDF

Info

Publication number
WO2019085299A1
WO2019085299A1 PCT/CN2018/074611 CN2018074611W WO2019085299A1 WO 2019085299 A1 WO2019085299 A1 WO 2019085299A1 CN 2018074611 W CN2018074611 W CN 2018074611W WO 2019085299 A1 WO2019085299 A1 WO 2019085299A1
Authority
WO
WIPO (PCT)
Prior art keywords
image
ratio
current frame
frame picture
color
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/074611
Other languages
English (en)
French (fr)
Inventor
崔小鹃
杨翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US15/996,808 priority Critical patent/US10497321B2/en
Publication of WO2019085299A1 publication Critical patent/WO2019085299A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed

Definitions

  • the present invention relates to the field of electronic technologies, and in particular, to an image processing method and an apparatus therefor.
  • terminals such as mobile phones and tablet computers have become an indispensable part of people's lives. People can not only use these terminals for communication, but also video playback, file transfer, and video recording. Play games and more.
  • the Red Green Blue White (RGBW) system algorithm came into being, that is, the original Red Green Blue (RGB) sub-pixel system became the RGBW sub-pixel system;
  • the received image data is converted from the gray-scale domain to the luminance domain, so as to improve the calculation precision, and then the received RGB data is converted into the RGBW domain; then the Sub Pixel Rendering (SPR) technology and the specific mapping are performed.
  • SPR Sub Pixel Rendering
  • the embodiment of the invention provides an image processing method and a device thereof, which can improve the brightness of the saturated color display, reduce the brightness deviation of the unsaturated color and the saturated color, and improve the display effect of the terminal.
  • a first aspect of the embodiments of the present invention provides an image processing method, which may include:
  • PWM Pulse Width Modulation
  • a second aspect of the embodiments of the present invention provides an image processing apparatus, which may include:
  • An image detecting unit configured to detect a saturated color ratio of a current frame picture in the acquired target image
  • a duty ratio acquiring unit configured to acquire a pulse width modulation PWM duty ratio of a backlight circuit for displaying the current frame picture according to the saturated color ratio
  • a gain coefficient acquisition unit configured to acquire a gain coefficient for performing image format conversion on the current frame picture according to the saturated color ratio
  • An image display unit configured to convert the current frame picture from a first image format to a second image format based on an image conversion algorithm and using the gain coefficient, and control the backlight circuit to correspond to the PWM duty cycle
  • the backlight brightness displays the current frame picture of the second image format.
  • a third aspect of the embodiments of the present invention provides an electronic device, including: a housing, a processor, a memory, a circuit board, and a power supply circuit, wherein the circuit board is disposed inside a space enclosed by the housing, The processor and the memory are disposed on the circuit board; the power supply circuit is configured to supply power to each circuit or device of the electronic device; the memory is configured to store executable program code; Executing executable program code stored in the memory to execute a program corresponding to the executable program code for performing the following steps:
  • the pulse width modulation PWM duty ratio of the backlight circuit for displaying the current frame picture is obtained according to the saturated color ratio and the current
  • the frame picture is used to convert the gain coefficient of the image format.
  • the current frame picture is converted from the first image format to the second image format, and the backlight brightness corresponding to the PWM duty ratio is controlled.
  • the current frame picture of the second image format is displayed.
  • the corresponding PWM duty ratio and gain coefficient are obtained, and the backlight brightness of the display screen can be intelligently controlled, and the gain coefficient in the process of intelligently controlling the format conversion can be solved in the screen.
  • the saturated color is darker than the unsaturated color, which improves the display effect of the terminal.
  • FIG. 1 is a schematic flowchart of an image processing method according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of another image processing method according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of an image processing apparatus according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of an image detecting unit according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an image display unit according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
  • the image processing method provided by the embodiment of the present invention can be applied to a video image display format conversion of a mobile terminal, including a video captured by a mobile terminal, a video downloaded from a network, or a graphic interchange format (GIF) dynamic image.
  • a saturation color ratio of a current frame picture in the acquired target image detecting a saturation color ratio of a current frame picture in the acquired target image, acquiring a PWM duty ratio of a backlight circuit for displaying a current frame picture according to a saturated color ratio, and acquiring a current frame picture according to a saturated color ratio Performing a gain conversion coefficient of the image format conversion; converting the current frame picture from the first image format to the second image format based on the image conversion algorithm and using the gain coefficient, and controlling the backlight brightness corresponding to the PWM circuit to the second image
  • the current frame picture of the format is displayed. Therefore, the problem that the saturation color is darker than the saturated color when the screen with a relatively high saturation color is displayed is improved, and the display effect of the terminal is improved.
  • the image processing device may include: a tablet device, a smart phone, a personal computer (PC), a notebook computer, a palmtop computer, and a mobile Internet device (MID), and the like.
  • a tablet device a smart phone
  • PC personal computer
  • a notebook computer a palmtop computer
  • MID mobile Internet device
  • FIG. 1 is a schematic flowchart diagram of an image processing method according to an embodiment of the present invention. As shown in FIG. 1, the method of the embodiment of the present invention may include the following steps S101 to S104.
  • the image processing device may detect a saturated color ratio of the current frame image in the acquired target image.
  • the target image includes an image video and a dynamic video of multiple images, for example, image processing apparatus.
  • a video or a GIF dynamic image downloaded by the video processing device from the terminal;
  • the current frame picture may be a frame picture of a certain time specified by the user, or a default first frame picture of the device, for example, the image processing device plays the image video.
  • the default is to start playing from the first frame, or start from the time specified by the user;
  • the saturated color is a color with a certain brightness without variegated gray, and the solid color is generally used as a saturated color;
  • the image processing device receives an instruction to play a video or a GIF dynamic image, acquires a current frame image in the target image, and detects a proportion of a solid color in the image.
  • the image processing device may obtain a pulse width modulation PWM duty ratio of the backlight circuit for displaying the current frame picture according to the saturation color ratio. It may be understood that the backlight circuit displays the current frame picture.
  • the PWM duty cycle is the proportion of the entire period of a high level in a pulse period.
  • the digital output of the microprocessor is used to control the analog circuit for controlling the brightness of the backlight circuit; the image processing device obtains the saturated color. After the ratio, according to the relationship between the saturation color ratio and the PWM duty ratio, the brightness of the PWM duty control backlight circuit is obtained to display the current frame picture.
  • the image processing device may acquire a gain coefficient for performing image format conversion on the current frame picture according to the saturated color ratio.
  • the image display format includes an RGB image, an RGBW image, and an RGBA image, for example, RGB.
  • the image is converted into an RGBW image by adding a white channel to the original red, green and blue color channels, the gain coefficient is used for the conversion of the picture image format; after the image processing device obtains the saturated color ratio, the image is occupied according to the saturated color.
  • the relationship between the ratio and the gain coefficient is obtained by acquiring a gain coefficient to perform image format conversion on the current frame picture.
  • the image processing device may convert the current frame picture from the first image format to the second image format based on the image conversion algorithm and adopt the gain coefficient, and control the backlight circuit to correspond to the PWM duty ratio.
  • the backlight brightness is displayed on the current frame picture of the second image format. It can be understood that the current frame picture is format-converted according to the gain coefficient by using an image conversion algorithm, and the backlight circuit is controlled according to the PWM duty ratio.
  • the image processing device acquires a gain coefficient and a PWM duty ratio, converts the RGB image with the gain coefficient, and controls the backlight circuit to occupy the PWM
  • the backlight brightness corresponding to the aspect ratio is displayed on the current frame picture of the RGBW image.
  • the pulse width modulation PWM duty ratio of the backlight circuit for displaying the current frame picture is obtained according to the saturated color ratio and the current
  • the frame picture is used to convert the gain coefficient of the image format.
  • the current frame picture is converted from the first image format to the second image format, and the backlight brightness corresponding to the PWM duty ratio is controlled.
  • the current frame picture of the second image format is displayed.
  • the corresponding PWM duty ratio and gain coefficient are obtained, and the backlight brightness of the display screen can be intelligently controlled, and the gain coefficient in the process of intelligently controlling the format conversion can be solved in the screen.
  • the saturated color is darker than the unsaturated color, which improves the display effect of the terminal.
  • FIG. 2 is a schematic flowchart diagram of an image processing method according to an embodiment of the present invention. As shown in FIG. 2, the method of the embodiment of the present invention may include the following steps S201 to S206.
  • the image processing device may separately detect the proportion of the target color and the proportion of the solid color in the current frame picture of the acquired target image, and it may be understood that the target color is greatly affected by the background color during display.
  • Color the solid color is the saturated color in the picture. For example, when the picture is displayed, the yellow color is greatly affected by the background color.
  • the image processing device acquires the current frame picture in the target image, it detects the proportion of yellow in the picture and the color of the solid color. ratio.
  • the image processing device may perform weighting processing on the proportion of the target color, and determine the ratio of the weight of the target color and the proportion of the solid color to a saturated color ratio, which is understandable
  • the weighting process is to change the proportion of the target color.
  • the target color is greatly affected by the background color when displayed.
  • the display effect of the target color area in the image is darker than that of other saturated color regions. Therefore, increasing the proportion coefficient of the target color can reduce the brightness display deviation of the target color area and other saturated color areas after the image format conversion, and the proportion of the target color and the proportion of the solid color after the weighting processing are determined as the saturated color ratio.
  • the solid color ratio is 10%
  • the yellow ratio is 1%
  • the yellow color is subjected to a 3-fold weighting treatment.
  • the weight ratio of the yellow color ratio to the solid color is 12%
  • the saturated color ratio is 12%. It is 12%.
  • the image processing device acquires, according to a first relationship function of the ratio and the duty ratio, a PWM duty ratio of the backlight circuit for displaying the current frame picture corresponding to the saturated color ratio, which is understandable,
  • a relation function is used to represent the correspondence between the saturation color ratio and the PWM duty ratio.
  • the first relationship function may be pre-stored in the device, the image processing device acquires the saturation color ratio, and the first relationship function is called to obtain the saturated color.
  • the image processing device acquires a gain coefficient for performing image format conversion on the current frame picture corresponding to the saturated color ratio based on a second relationship function of the ratio and the coefficient.
  • the second relationship function is used for Representing a correspondence between a saturation color ratio and a gain coefficient
  • the second relationship function may be pre-stored in the device, the image processing device acquires a saturated color ratio, and calls a second relationship function to obtain a saturated color ratio corresponding to the The gain coefficient of the image format conversion of the current frame picture.
  • the image processing device acquires an initial coefficient and a gradation coefficient between the gain coefficients based on the first preset step size, and adopts the gradation coefficient and the gain coefficient to switch by frame by frame according to an image conversion algorithm.
  • the current frame picture is converted from the first image format to the second image format.
  • the frame-by-frame switching mode is a method of multiple switching, and the image processing device acquires initial coefficients, and the initial coefficients are excessive.
  • the gradation coefficient is a gain coefficient after initial coefficient switching
  • the first preset step is a change amount of the initial coefficient to a gradation coefficient, based on an image conversion algorithm
  • the image processing device converts the current frame picture from the first image format to the second image format by using the gradation coefficient and the gain coefficient; for example, based on the RGBW conversion algorithm, the image processing device converts the RGB image into an RGBW image,
  • the initial coefficient is 1.1
  • the gain coefficient is 1.4
  • the first preset step size is 0.1.
  • the initial system is 1.1 Switching to a gradient coefficient of 1.2, based on the RGBW conversion algorithm, the image processing device converts the RGB image into an RGBW image with a gradient coefficient of 1.2, and then switches through frame by frame, the gradient coefficient 1.2 is switched to a gradient coefficient of 1.3, based on the RGBW conversion algorithm, The image processing device converts the RGB image into an RGBW image with a gradation coefficient of 1.3, and switches the frame factor to 1.3 with a gain coefficient of 1.4. Based on the RGBW conversion algorithm, the image processing device converts the RGB image into a gain coefficient of 1.4. RGBW image.
  • the image processing device acquires a gradient duty ratio between the initial duty ratio and the PWM duty ratio based on the second preset step size, and uses the gradient duty ratio and the PWM duty ratio to switch frame by frame.
  • the method for controlling the backlight circuit to display the current frame image of the second image format it can be understood that the manner of frame-by-frame switching is a method for multiple switching, and the image processing device obtains initial duty Ratio, the initial duty ratio is switched over a plurality of times, and finally switched to the PWM duty ratio, the faded duty ratio is a PWM duty ratio after initial duty ratio switching, and the second preset step size Switching the initial duty ratio to a change amount of the gradation duty ratio, the image processing apparatus controls the current frame picture of the second image format by the backlight circuit by using the gradation duty ratio and the PWM duty ratio Performing display; for example, based on the RGBW conversion algorithm, the image processing device converts the RGB image into an RGBW image, the initial duty ratio is 0.5, the PWM duty ratio is 0.5
  • the pulse width modulation PWM duty ratio of the backlight circuit for displaying the current frame picture is obtained according to the saturated color ratio and the current
  • the frame picture is used to convert the gain coefficient of the image format.
  • the current frame picture is converted from the first image format to the second image format, and the backlight brightness corresponding to the PWM duty ratio is controlled.
  • the current frame picture of the second image format is displayed.
  • Obtaining a corresponding PWM duty ratio and a gain coefficient by detecting a saturation color ratio of a current frame picture in the acquired target image, and using the gradation coefficient and the gain coefficient to switch the current frame picture from the first image format by frame-by-frame switching Converting to a second image format, controlling the backlight circuit to display the current frame image of the second image format by using a gradient duty ratio and a PWM duty ratio to switch from frame to frame; and capable of intelligently controlling the backlight of the display image Brightness, intelligent control of the gain coefficient during the format conversion process, can solve the problem that the saturated color is darker than the unsaturated color when the screen is displayed, and can avoid the flicker phenomenon of the screen with different saturated color ratios during switching, and improve the terminal.
  • the display effect can solve the problem that the saturated color is darker than the unsaturated color when the screen is displayed, and can avoid the flicker phenomenon of the screen with different saturated color ratios during switching, and improve the terminal.
  • FIG. 3 is a schematic structural diagram of an image processing apparatus according to an embodiment of the present invention.
  • the image processing apparatus 1 of the embodiment of the present invention may include an image detecting unit 11, a duty ratio acquiring unit 12, a coefficient acquiring unit 13, and a screen display unit 14.
  • the image detecting unit 11 is configured to detect a saturated color proportion of the current frame picture in the acquired target image
  • the image detecting unit 11 may detect a saturated color ratio of the current frame image in the acquired target image.
  • the target image includes an image video and a dynamic video of multiple images, for example, an image processing device is photographed.
  • Video or image processing device downloading video or GIF dynamic image from the terminal the current frame picture may be a frame picture of a certain time specified by the user, or a default first frame picture of the device, for example, the image processing device plays the image Video, the default is to play from the first frame, or start from the time specified by the user;
  • the saturated color is a color with a certain brightness without variegated gray, and the solid color is generally used as a saturated color;
  • the image processing device receives an instruction to play a video or a GIF dynamic image, the current frame image in the target image is acquired, and the proportion of the solid color in the image is detected.
  • the duty ratio obtaining unit 12 is configured to acquire a pulse width modulation PWM duty ratio of the backlight circuit for displaying the current frame picture according to the saturated color ratio;
  • the duty ratio obtaining unit 12 may acquire, according to a first relationship function of the ratio and the duty ratio, a PWM duty ratio of the backlight circuit for displaying the current frame picture corresponding to the saturated color ratio, which can be understood.
  • the backlight circuit is configured to display a current frame picture
  • the PWM duty ratio is a ratio of a whole period of a high level in a pulse period
  • the analog circuit is controlled by the digital output of the microprocessor for control.
  • the brightness of the backlight circuit is used to indicate the correspondence between the saturation color ratio and the PWM duty ratio, and the first relationship function may be pre-stored in the device, and the image processing device acquires the saturation color ratio, and calls the first The relation function obtains a PWM duty ratio of the backlight circuit for displaying the current frame picture corresponding to the saturation color ratio.
  • a coefficient obtaining unit 13 configured to acquire, according to the saturated color ratio, a gain coefficient for performing image format conversion on the current frame picture
  • the coefficient obtaining unit 13 may acquire, according to the second relationship function of the ratio and the coefficient, a gain coefficient that performs image format conversion on the current frame picture corresponding to the saturated color ratio.
  • the image display format includes RGB image, RGBW image and RGBA image, for example, converting RGB image into RGBW image, adding a white channel to the original red, green and blue color channels, the gain coefficient is used for the conversion of the picture image format;
  • the relationship function is used to represent the correspondence between the saturation color ratio and the gain coefficient.
  • the second relationship function may be pre-stored in the device, the image processing device acquires the saturation color ratio, and calls the second relationship function to obtain the saturated color ratio.
  • the screen display unit 14 is configured to convert the current frame picture from the first image format to the second image format based on the image conversion algorithm and using the gain coefficient, and control the backlight circuit to correspond to the PWM duty ratio The backlight brightness is displayed on the current frame picture of the second image format.
  • the screen display unit 14 may convert the current frame picture from the first image format to the second image format based on the image conversion algorithm and adopt the gain coefficient, and control the backlight circuit to use the PWM duty ratio.
  • the corresponding backlight brightness is displayed on the current frame picture of the second image format.
  • the current frame picture is format-converted according to the gain coefficient by using an image conversion algorithm, and the backlight is controlled according to the PWM duty ratio.
  • the circuit displays the format converted image, for example, converts the RGB image into an RGBW image, the image processing device acquires a gain coefficient and a PWM duty ratio, converts the RGB image with the gain coefficient, and controls the backlight circuit to the PWM
  • the backlight brightness corresponding to the duty ratio displays the current frame picture of the RGBW image.
  • FIG. 4 is a schematic structural diagram of an image detecting unit 11 according to an embodiment of the present invention.
  • the image detecting unit 11 of the embodiment of the present invention may include: a ratio detecting sub-unit 111 and a ratio determining sub-unit 112.
  • the ratio detecting sub-unit 111 is configured to respectively detect a proportion of a target color and a proportion of a solid color in a current frame picture of the acquired target image;
  • the ratio detecting sub-unit 111 can separately detect the proportion of the target color and the proportion of the solid color in the current frame picture of the acquired target image, and it can be understood that the target color is affected by the background color during display.
  • the larger color, the solid color is the saturated color in the picture. For example, when the picture is displayed, the yellow color is greatly affected by the background color.
  • the image processing device acquires the current frame picture in the target image, the yellow ratio of the picture is detected respectively. The proportion of solid color.
  • the ratio determining sub-unit 112 may perform weighting processing on the proportion of the target color, and determine the proportion of the target color in the weighting process and the proportion of the solid color as a saturated color ratio. It is understood that the weighting process is to change the proportion of the target color, and the target color is greatly affected by the background color when displaying, and the display effect of the target color region in the image is better than that of other saturated color regions when performing image format conversion. It is darker, so increasing the proportion coefficient of the target color can reduce the deviation of the brightness of the target color area and other saturated color areas after the image format conversion, and the proportion of the target color and the proportion of the solid color after the weighting processing are determined to be saturated.
  • the color ratio is, for example, 10% of the solid color ratio, 1% of the yellow color ratio, and 3 times weighting treatment for the yellow color, and the proportion of the yellow color ratio and the solid color after the weighting treatment is 12%, the saturation.
  • the color ratio is 12%.
  • FIG. 5 is a schematic structural diagram of a screen display unit 14 according to an embodiment of the present invention.
  • the picture display unit 14 of the embodiment of the present invention may include: a format conversion sub-unit 141 and a picture display sub-unit 142.
  • a format conversion sub-unit 141 configured to acquire an initial coefficient and a gradation coefficient between the gain coefficients based on a first preset step size, and adopt a manner of switching between frame-by-frame based on an image conversion algorithm and using the gradation coefficient and the gain coefficient. Converting the current frame picture from a first image format to a second image format;
  • the format conversion sub-unit 141 obtains an initial coefficient and a gradation coefficient between the gain coefficients based on the first preset step size, and adopts the gradation coefficient and the gain coefficient to switch frame by frame according to an image conversion algorithm. Converting the current frame picture from the first image format to the second image format. It can be understood that the frame-by-frame switching mode is a method of multiple switching, and the image processing device acquires initial coefficients, the initial coefficients.
  • the gradation coefficient is a gain coefficient after initial coefficient switching
  • the first preset step is a change of the initial coefficient to a gradation coefficient, based on image conversion
  • An image processing apparatus converts the current frame picture from a first image format to a second image format by using the gradation coefficient and the gain coefficient; for example, based on an RGBW conversion algorithm, the image processing device converts the RGB image into an RGBW image
  • the initial coefficient is 1.1
  • the gain coefficient is 1.4
  • the first preset step size is 0.1. After one frame-by-frame switching, the initial The coefficient 1.1 is switched to a gradation coefficient of 1.2.
  • the image processing device Based on the RGBW conversion algorithm, the image processing device converts the RGB image into an RGBW image with a gradation coefficient of 1.2, and then switches frame by frame, the gradation coefficient 1.2 is switched to a gradation coefficient of 1.3, based on the RGBW conversion algorithm.
  • the image processing device converts the RGB image into an RGBW image with a gradation coefficient of 1.3, and then switches the frame by frame to a gain coefficient of 1.4.
  • the image processing device Based on the RGBW conversion algorithm, converts the RGB image with a gain coefficient of 1.4. For RGBW images.
  • the screen display sub-unit 142 is configured to acquire a gradation duty ratio between the initial duty ratio and the PWM duty ratio based on the second preset step size, and adopt the gradation duty ratio and the PWM duty ratio to In a manner of frame switching, the backlight circuit is controlled to display the current frame picture of the second image format.
  • the screen display sub-unit 142 acquires a gradation duty ratio between the initial duty ratio and the PWM duty ratio based on the second preset step size, and adopts the gradation duty ratio and the PWM duty ratio to In the manner of frame switching, the backlight circuit is controlled to display the current frame image of the second image format.
  • the frame-by-frame switching mode is a method for multiple switching, and the image processing device obtains an initial a duty ratio, the initial duty ratio is switched over a plurality of times, and finally switched to the PWM duty ratio, the faded duty ratio is a PWM duty ratio after initial duty ratio switching, and the second preset
  • the step size is that the initial duty ratio is switched to a change amount of the gradation duty ratio, and the image processing apparatus controls the current state of the second image format by the backlight circuit by using the gradation duty ratio and the PWM duty ratio
  • the frame picture is displayed; for example, based on the RGBW conversion algorithm, the image processing device converts the RGB image into an RGBW image, the initial duty ratio is 0.5, the PWM duty ratio is 0.8, and the second preset step is 0.1.
  • the initial The space ratio 0.5 is switched to the gradation duty ratio of 0.6, and the image processing device controls the backlight circuit to display the current frame picture of the RGBW image with a gradation duty ratio of 0.6, and then performs frame-by-frame switching, the gradation duty ratio.
  • 0.6 is switched to a gradient duty ratio of 0.7, and the image processing device controls the backlight circuit to display the current frame picture of the RGBW image with a gradient duty ratio of 0.7, and then performs a frame-by-frame switching, and the gradient duty ratio is 0.7.
  • the image processing device controls the backlight circuit to display the current frame picture of the RGBW image with a PWM duty ratio of 0.8.
  • the pulse width modulation PWM duty ratio of the backlight circuit for displaying the current frame picture is obtained according to the saturated color ratio and the current
  • the frame picture is used to convert the gain coefficient of the image format.
  • the current frame picture is converted from the first image format to the second image format, and the backlight brightness corresponding to the PWM duty ratio is controlled.
  • the current frame picture of the second image format is displayed.
  • Obtaining a corresponding PWM duty ratio and a gain coefficient by detecting a saturation color ratio of a current frame picture in the acquired target image, and using the gradation coefficient and the gain coefficient to switch the current frame picture from the first image format by frame-by-frame switching Converting to a second image format, controlling the backlight circuit to display the current frame image of the second image format by using a gradient duty ratio and a PWM duty ratio to switch from frame to frame; and capable of intelligently controlling the backlight of the display image Brightness, intelligent control of the gain coefficient during the format conversion process, can solve the problem that the saturated color is darker than the unsaturated color when the screen is displayed, and can avoid the flicker phenomenon of the screen with different saturated color ratios during switching, and improve the terminal.
  • the display effect can solve the problem that the saturated color is darker than the unsaturated color when the screen is displayed, and can avoid the flicker phenomenon of the screen with different saturated color ratios during switching, and improve the terminal.
  • FIG. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
  • the electronic device of the embodiment of the present invention may include: a housing 600, a circuit board 601, a processor 602, a communication bus 603, an input device 604, an output device 605, and a memory 606, wherein the circuit board 601 Disposed within the space enclosed by the housing 600, a processor 602, a communication bus 603, a memory 606, an input device 604, and an output device 605 are disposed on the circuit board 601; the communication bus 603 is used to implement connection communication between these components.
  • the memory 606 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • the memory 606 can optionally also be at least one storage device located remotely from the aforementioned processor 602.
  • the processor 602 can store the executable program code in the memory 606 with the image processing device described in FIG. 3-5; and the processor 602 runs the executable program code by reading the executable program code stored in the memory 606.
  • the control input device 604 detects a saturated color ratio of the current frame picture in the acquired target image
  • the control input device 604 acquires a pulse width modulation PWM duty ratio of a backlight circuit for displaying the current frame picture according to the saturation color ratio;
  • the control input device 604 acquires a gain coefficient for performing image format conversion on the current frame picture according to the saturated color ratio
  • the control processor 602 converts the current frame picture from the first image format to the second image format based on the image conversion algorithm and uses the gain coefficient, and controls the backlight brightness of the backlight circuit corresponding to the PWM duty ratio Displaying the current frame picture of the second image format.
  • control processor 602 detects the saturation color ratio of the current frame picture in the acquired target image, and calls the executable program code stored in the memory 606 to perform the following operations:
  • control processor 602 performs a pulse width modulation PWM occupation of acquiring a backlight circuit for displaying the current frame picture according to the saturation color ratio and calling the executable program code stored in the memory 606. Empty ratio, do the following:
  • control processor 602 performs a gain coefficient for performing image format conversion on the current frame picture according to the saturated color ratio and calling the executable program code stored in the memory 606, specifically executing the following: operating:
  • control processor 602 performs the conversion of the current frame picture from the first image format to the second image based on an image conversion algorithm and using the gain coefficients, invoking executable program code stored in the memory 606. Formatting, and controlling the backlight circuit to display the current frame picture of the second image format with the backlight brightness corresponding to the PWM duty ratio, and specifically performing the following operations:
  • the backlight circuit displays the current frame picture of the second image format.
  • the pulse width modulation PWM duty ratio of the backlight circuit for displaying the current frame picture is obtained according to the saturated color ratio and the current
  • the frame picture is used to convert the gain coefficient of the image format.
  • the current frame picture is converted from the first image format to the second image format, and the backlight brightness corresponding to the PWM duty ratio is controlled.
  • the current frame picture of the second image format is displayed.
  • Obtaining a corresponding PWM duty ratio and a gain coefficient by detecting a saturation color ratio of a current frame picture in the acquired target image, and using the gradation coefficient and the gain coefficient to switch the current frame picture from the first image format by frame-by-frame switching Converting to a second image format, controlling the backlight circuit to display the current frame image of the second image format by using a gradient duty ratio and a PWM duty ratio to switch from frame to frame; and capable of intelligently controlling the backlight of the display image Brightness, intelligent control of the gain coefficient during the format conversion process, can solve the problem that the saturated color is darker than the unsaturated color when the screen is displayed, and can avoid the flicker phenomenon of the screen with different saturated color ratios during switching, and improve the terminal.
  • the display effect can solve the problem that the saturated color is darker than the unsaturated color when the screen is displayed, and can avoid the flicker phenomenon of the screen with different saturated color ratios during switching, and improve the terminal.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

本发明实施例公开一种图像处理方法及其设备，其中，该方法通过检测所获取的目标图像中当前帧画面的饱和色占比获取对应的PWM占空比和增益系数，能够智能控制显示画面的背光亮度和格式转换过程中的增益系数，解决在画面显示时出现饱和色相比非饱和色偏暗的问题，提高了终端的显示效果。

Description

一种图像处理方法及其设备 技术领域
本发明涉及电子技术领域，尤其涉及一种图像处理方法及其设备。
背景技术
随着电子科技的不断的开发和完善，手机和平板电脑等终端已经成为了人们生活中不可或缺的一个部分，人们不仅可以利用这些终端进行通讯，还可以进行视频播放、文件传输、摄像、玩游戏等。
随着人们对显示器在高亮节能方面的不断追求，四原色(Red Green Blue White，RGBW)系统算法应运而生，即原来三原色(Red Green Blue，RGB)子像素系统变为RGBW子像素系统；首先将接收到的图像数据由灰阶域转换到亮度域，以便提高计算精度，然后将接收到的RGB数据转换到RGBW域；再经过像素渲染技术(Sub Pixel Rendering，SPR)技术以及特定的映射关系，再经亮度域到灰阶域的转换过程将RGB图形数据转换为RGBW图形数据，但这种方法也存在有一定的问题，将图像的RGB数据转换为RGBW的过程中，由于面板制程及像素限制，饱和色实际上达到的增益要比非饱和色的增益小，这使得在画面显示时出现饱和色相比非饱和色偏暗的现象。这对于饱和色占比较高的画面，导致RGBW系统显示出的图像相比RGB系统显示的图像偏暗，对于一些对画面要求较高的情况，无法达到预期的效果，降低了终端的显示效果。
发明内容
本发明实施例提供了一种图像处理方法及其设备，可以提高饱和色显示亮度，减小非饱和色与饱和色的亮度偏差，提高终端的显示效果。
本发明实施例第一方面提供了一种图像处理方法，可包括：
检测所获取的目标图像中当前帧画面的饱和色占比；
根据所述饱和色占比获取用于显示所述当前帧画面的背光电路的脉冲宽度调制(Pulse Width Modulation，PWM)占空比；
根据所述饱和色占比获取对所述当前帧画面进行图像格式转换的增益系 数；
基于图像转换算法并采用所述增益系数，将所述当前帧画面由第一图像格式转换为第二图像格式，并控制所述背光电路以所述PWM占空比对应的背光亮度对第二图像格式的所述当前帧画面进行显示。
本发明实施例第二方面提供了一种图像处理设备，可包括：
图像检测单元，用于检测所获取的目标图像中当前帧画面的饱和色占比；
占空比获取单元，用于根据所述饱和色占比获取用于显示所述当前帧画面的背光电路的脉冲宽度调制PWM占空比；
增益系数获取单元，用于根据所述饱和色占比获取对所述当前帧画面进行图像格式转换的增益系数；
图像显示单元，用于基于图像转换算法并采用所述增益系数，将所述当前帧画面由第一图像格式转换为第二图像格式，并控制所述背光电路以所述PWM占空比对应的背光亮度对第二图像格式的所述当前帧画面进行显示。
本发明实施例第三方面提供了一种电子设备，可包括：壳体、处理器、存储器、电路板和电源电路，其中，所述电路板安置在所述壳体围成的空间内部，所述处理器和所述存储器设置在所述电路板上；所述电源电路，用于为所述电子设备的各个电路或器件供电；所述存储器用于存储可执行程序代码；所述处理器通过读取所述存储器中存储的可执行程序代码来运行与所述可执行程序代码对应的程序，以用于执行以下步骤：
检测所获取的目标图像中当前帧画面的饱和色占比；
根据所述饱和色占比获取用于显示所述当前帧画面的背光电路的脉冲宽度调制PWM占空比；
根据所述饱和色占比获取对所述当前帧画面进行图像格式转换的增益系数；
基于图像转换算法并采用所述增益系数，将所述当前帧画面由第一图像格式转换为第二图像格式，并控制所述背光电路以所述PWM占空比对应的背光亮度对第二图像格式的所述当前帧画面进行显示。
在本发明实施例中，通过检测所获取的目标图像中当前帧画面的饱和色占比，根据饱和色占比获取用于显示当前帧画面的背光电路的脉冲宽度调制 PWM占空比和对当前帧画面进行图像格式转换的增益系数，最后基于图像转换算法并采用增益系数，将当前帧画面由第一图像格式转换为第二图像格式，并控制背光电路以PWM占空比对应的背光亮度对第二图像格式的当前帧画面进行显示。通过检测所获取的目标图像中当前帧画面的饱和色占比获取对应的PWM占空比和增益系数，能够智能控制显示画面的背光亮度，智能控制格式转换过程中的增益系数，能够解决在画面显示时出现饱和色相比非饱和色偏暗的问题，提高了终端的显示效果。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的一种图像处理方法的流程示意图；
图2是本发明实施例提供的另一种图像处理方法的流程示意图；
图3是本发明实施例提供的一种图像处理设备的结构示意图；
图4是本发明实施例提供的图像检测单元的结构示意图；
图5是本发明实施例提供的图像显示单元的结构示意图；
图6是本发明实施例提供的一种电子设备的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例提供的图像处理方法可以应用于移动终端的视频图像显示格式转换的情况，包括移动终端拍摄的视频、从网络下载的视频或者图像互换格式(Graphics Interchange Format，GIF)动态图等，例如：检测所获取的目标图像中当前帧画面的饱和色占比，根据饱和色占比获取用于显示当前帧画面的背光电路的PWM占空比，根据饱和色占比获取对当前帧画面进行图像格式 转换的增益系数；基于图像转换算法并采用增益系数，将当前帧画面由第一图像格式转换为第二图像格式，并控制背光电路以PWM占空比对应的背光亮度对第二图像格式的当前帧画面进行显示。从而解决了对于饱和色占比较高的画面在显示时出现饱和色相比非饱和色偏暗的问题，提高了终端的显示效果。
本发明实施例涉及的图像处理设备可以包括：平板电脑、智能手机、个人电脑(PC)、笔记本电脑、掌上电脑以及移动互联网设备(MID)等具备视频图像播放的终端设备。
请参见图1，为本发明实施例提供了一种图像处理方法的流程示意图。如图1所示，本发明实施例的所述方法可以包括以下步骤S101-步骤S104。
S101，检测所获取的目标图像中当前帧画面的饱和色占比；
具体的，图像处理设备可以检测所获取的目标图像中当前帧画面的饱和色占比，可以理解的是，所述目标图像包括图像视频和多幅图像的动态视频，例如，图像处理设备拍摄的视频、图像处理设备从终端下载的视频或者GIF动态图；所述当前帧画面可以是用户指定的某一个时刻的帧画面，或者是设备默认的第一帧画面，例如，图像处理设备播放图像视频，默认是从第一帧画面开始播放，也可以从用户指定的时刻开始播放；所述饱和色为不含杂色不含灰的具有一定亮度的颜色，一般情况下将纯色作为饱和色；当图像处理设备收到播放视频或者GIF动态图的指令，获取目标图像中当前帧画面，并检测画面中纯色的占比。
S102，根据所述饱和色占比获取用于显示所述当前帧画面的背光电路的脉冲宽度调制PWM占空比；
具体的，图像处理设备可以根据所述饱和色占比获取用于显示所述当前帧画面的背光电路的脉冲宽度调制PWM占空比，可以理解的是，所述背光电路用显示当前帧画面，，PWM占空比是一个脉冲周期内高电平的所整个周期占的比例，利用微处理器的数字输出来对模拟电路进行控制，用于控制背光电路的亮度；图像处理设备获取饱和色占比后，根据饱和色占比与PWM占空比之间的关系，获取PWM占空比控制背光电路的亮度显示当前帧画面。
S103，根据所述饱和色占比获取对所述当前帧画面进行图像格式转换的增 益系数；
具体的，图像处理设备可以根据所述饱和色占比获取对所述当前帧画面进行图像格式转换的增益系数，可以理解的是，图像显示格式包括RGB图像、RGBW图像和RGBA图像，例如将RGB图像转换为RGBW图像，则是在原来的红绿蓝三个色彩通道上增加一个白色通道，所述增益系数用于画面图像格式的转换；图像处理设备获取饱和色占比后，根据饱和色占比与增益系数之间的关系，获取增益系数对当前帧画面进行图像格式转换。
S104，基于图像转换算法并采用所述增益系数，将所述当前帧画面由第一图像格式转换为第二图像格式，并控制所述背光电路以所述PWM占空比对应的背光亮度对第二图像格式的所述当前帧画面进行显示。
具体的，图像处理设备可以基于图像转换算法并采用所述增益系数，将所述当前帧画面由第一图像格式转换为第二图像格式，并控制所述背光电路以所述PWM占空比对应的背光亮度对第二图像格式的所述当前帧画面进行显示，可以理解的是，根据所述增益系数采用图像转换算法将当前帧画面进行格式转换，并根据所述PWM占空比控制背光电路对格式转换后的图像进行显示，例如，将RGB图像转换为RGBW图像，图像处理设备获取增益系数和PWM占空比，以所述增益系数对RGB图像进行转换，控制背光电路以所述PWM占空比对应的背光亮度对RGBW图像的当前帧画面进行显示。
在本发明实施例中，通过检测所获取的目标图像中当前帧画面的饱和色占比，根据饱和色占比获取用于显示当前帧画面的背光电路的脉冲宽度调制PWM占空比和对当前帧画面进行图像格式转换的增益系数，最后基于图像转换算法并采用增益系数，将当前帧画面由第一图像格式转换为第二图像格式，并控制背光电路以PWM占空比对应的背光亮度对第二图像格式的当前帧画面进行显示。通过检测所获取的目标图像中当前帧画面的饱和色占比获取对应的PWM占空比和增益系数，能够智能控制显示画面的背光亮度，智能控制格式转换过程中的增益系数，能够解决在画面显示时出现饱和色相比非饱和色偏暗的问题，提高了终端的显示效果。
请参见图2，为本发明实施例提供了一种图像处理方法的流程示意图。如 图2所示，本发明实施例的所述方法可以包括以下步骤S201-步骤S206。
S201，分别检测所获取的目标图像的当前帧画面中目标颜色的占比和纯色的占比；
具体的，图像处理设备可以分别检测所获取的目标图像的当前帧画面中目标颜色的占比和纯色的占比，可以理解的是，所述目标颜色为在显示时受背景色影响较大的颜色，所述纯色为画面中的饱和色，例如，画面在显示时黄色受背景色影响较大，图像处理设备获取目标图像中当前帧画面后，分别检测画面中黄色的占比和纯色的占比。
S202，对所述目标颜色的占比进行加权处理，并将加权处理后的所述目标颜色的占比和所述纯色的占比确定为饱和色占比；
具体的，图像处理设备可以对所述目标颜色的占比进行加权处理，并将加权处理后的所述目标颜色的占比和所述纯色的占比确定为饱和色占比，可以理解的是，所述加权处理是改变目标颜色的占比，目标颜色在显示时受背景色影响较大，在进行图像格式转换时，图像中目标颜色区域显示效果比其它饱和色区域的显示效果更暗，所以增加目标颜色的占比系数，可以减小在图像格式转换后目标颜色区域与其它饱和色区域的亮度显示偏差，加权处理后的目标颜色的占比和纯色的占比确定为饱和色占比，例如，所述纯色占比为10％，黄色占比为1％，对黄色进行3倍加权处理，加权处理后的黄色的占比和纯色的占比为12％，所述饱和色占比为12％。
S203，基于占比和占空比的第一关系函数获取所述饱和色占比对应的用于显示所述当前帧画面的背光电路的PWM占空比；
具体的，图像处理设备基于占比和占空比的第一关系函数获取所述饱和色占比对应的用于显示所述当前帧画面的背光电路的PWM占空比，可以理解的是，第一关系函数用于表示饱和色占比和PWM占空比之间的对应关系，第一关系函数可预先存储于设备中，图像处理设备获取饱和色占比，调用第一关系函数，获取饱和色占比对应的用于显示所述当前帧画面的背光电路的PWM占空比。
S204，基于占比和系数的第二关系函数获取所述饱和色占比对应的对所述当前帧画面进行图像格式转换的增益系数；
具体的，图像处理设备基于占比和系数的第二关系函数获取所述饱和色占比对应的对所述当前帧画面进行图像格式转换的增益系数，可以理解的是，第二关系函数用于表示饱和色占比和增益系数之间的对应关系，第二关系函数可预先存储于设备中，图像处理设备获取饱和色占比，调用第二关系函数，获取饱和色占比对应的对所述当前帧画面进行图像格式转换的增益系数。
S205，基于第一预设步长获取初始系数和所述增益系数间的渐变系数，基于图像转换算法并采用所述渐变系数和所述增益系数以逐帧切换的方式，将所述当前帧画面由第一图像格式转换为第二图像格式；
具体的，图像处理设备基于第一预设步长获取初始系数和所述增益系数间的渐变系数，基于图像转换算法并采用所述渐变系数和所述增益系数以逐帧切换的方式，将所述当前帧画面由第一图像格式转换为第二图像格式，可以理解的是，所述逐帧切换的方式是一种多次切换的方法，图像处理设备获取初始系数，所述初始系数经过多次切换，最后切换为所述增益系数，所述渐变系数为初始系数切换后的增益系数，所述第一预设步长为所述初始系数切换为渐变系数的变化量，基于图像转换算法，图像处理设备采用所述渐变系数和所述增益系数将所述当前帧画面由第一图像格式转换为第二图像格式；例如，基于RGBW转换算法，图像处理设备将RGB图像转换为RGBW图像，所述初始系数为1.1，所述增益系数为1.4，第一预设步长为0.1，经过一次逐帧切换，所述初始系数1.1切换为渐变系数1.2，基于RGBW转换算法，图像处理设备以渐变系数1.2将RGB图像转换为RGBW图像，再经过一次逐帧切换，所述渐变系数1.2切换为渐变系数1.3，基于RGBW转换算法，图像处理设备以渐变系数1.3将RGB图像转换为RGBW图像，再经过一次逐帧切换，所述渐变系数1.3切换为增益系数1.4，基于RGBW转换算法，图像处理设备以增益系数1.4将RGB图像转换为RGBW图像。
S206，基于第二预设步长获取初始占空比和所述PWM占空比间的渐变占空比，采用所述渐变占空比和所述PWM占空比以逐帧切换的方式，控制所述背光电路对第二图像格式的所述当前帧画面进行显示。
具体的，图像处理设备基于第二预设步长获取初始占空比和所述PWM占空比间的渐变占空比，采用所述渐变占空比和所述PWM占空比以逐帧切换的 方式，控制所述背光电路对第二图像格式的所述当前帧画面进行显示，可以理解的是，所述逐帧切换的方式是一种多次切换的方法，图像处理设备获取初始占空比，所述初始占空比经过多次切换，最后切换为所述PWM占空比，所述渐变占空比为初始占空比切换后的PWM占空比，所述第二预设步长为所述初始占空比切换为渐变占空比的变化量，图像处理设备采用所述渐变占空比和所述PWM占空比控制所述背光电路对第二图像格式的所述当前帧画面进行显示；例如，基于RGBW转换算法，图像处理设备将RGB图像转换为RGBW图像，所述初始占空比为0.5，所述PWM占空比为0.8，第二预设步长为0.1，经过一次逐帧切换，所述初始占空比0.5切换为渐变占空比0.6，图像处理设备以渐变占空比0.6控制所述背光电路对RGBW图像的所述当前帧画面进行显示，再经过一次逐帧切换，所述渐变占空比0.6切换为渐变占空比0.7，图像处理设备以渐变占空比0.7控制所述背光电路对RGBW图像的所述当前帧画面进行显示，再经过一次逐帧切换，所述渐变占空比0.7切换为PWM占空比0.8，图像处理设备以PWM占空比0.8控制所述背光电路对RGBW图像的所述当前帧画面进行显示。
在本发明实施例中，通过检测所获取的目标图像中当前帧画面的饱和色占比，根据饱和色占比获取用于显示当前帧画面的背光电路的脉冲宽度调制PWM占空比和对当前帧画面进行图像格式转换的增益系数，最后基于图像转换算法并采用增益系数，将当前帧画面由第一图像格式转换为第二图像格式，并控制背光电路以PWM占空比对应的背光亮度对第二图像格式的当前帧画面进行显示。通过检测所获取的目标图像中当前帧画面的饱和色占比获取对应的PWM占空比和增益系数，采用渐变系数和增益系数以逐帧切换的方式将所述当前帧画面由第一图像格式转换为第二图像格式，采用渐变占空比和PWM占空比以逐帧切换的方式，控制所述背光电路对第二图像格式的所述当前帧画面进行显示；能够智能控制显示画面的背光亮度，智能控制格式转换过程中的增益系数，能够解决在画面显示时出现饱和色相比非饱和色偏暗的问题，能够避免不同饱和色占比的画面在切换时出现的闪烁现象，提高了终端的显示效果。
请参见图3，为本发明实施例提供了一种图像处理设备的结构示意图。如图3所示，本发明实施例的所述图像处理设备1可以包括：图像检测单元11、占空比获取单元12、系数获取单元13、画面显示单元14。
图像检测单元11，用于检测所获取的目标图像中当前帧画面的饱和色占比；
具体的，图像检测单元11可以检测所获取的目标图像中当前帧画面的饱和色占比，可以理解的是，所述目标图像包括图像视频和多幅图像的动态视频，例如，图像处理设备拍摄的视频、图像处理设备从终端下载的视频或者GIF动态图；所述当前帧画面可以是用户指定的某一个时刻的帧画面，或者是设备默认的第一帧画面，例如，图像处理设备播放图像视频，默认是从第一帧画面开始播放，也可以从用户指定的时刻开始播放；所述饱和色为不含杂色不含灰的具有一定亮度的颜色，一般情况下将纯色作为饱和色；当图像处理设备收到播放视频或者GIF动态图的指令，获取目标图像中当前帧画面，并检测画面中纯色的占比。
占空比获取单元12，用于根据所述饱和色占比获取用于显示所述当前帧画面的背光电路的脉冲宽度调制PWM占空比；
具体的，占空比获取单元12可以基于占比和占空比的第一关系函数获取所述饱和色占比对应的用于显示所述当前帧画面的背光电路的PWM占空比，可以理解的是，所述背光电路用显示当前帧画面，PWM占空比是一个脉冲周期内高电平的所整个周期占的比例，利用微处理器的数字输出来对模拟电路进行控制，用于控制背光电路的亮度；第一关系函数用于表示饱和色占比和PWM占空比之间的对应关系，第一关系函数可预先存储于设备中，图像处理设备获取饱和色占比，调用第一关系函数，获取饱和色占比对应的用于显示所述当前帧画面的背光电路的PWM占空比。
系数获取单元13，用于根据所述饱和色占比获取对所述当前帧画面进行图像格式转换的增益系数；
具体的，系数获取单元13可以基于占比和系数的第二关系函数获取所述饱和色占比对应的对所述当前帧画面进行图像格式转换的增益系数，可以理解的是，图像显示格式包括RGB图像、RGBW图像和RGBA图像，例如将RGB 图像转换为RGBW图像，则是在原来的红绿蓝三个色彩通道上增加一个白色通道，所述增益系数用于画面图像格式的转换；第二关系函数用于表示饱和色占比和增益系数之间的对应关系，第二关系函数可预先存储于设备中，图像处理设备获取饱和色占比，调用第二关系函数，获取饱和色占比对应的对所述当前帧画面进行图像格式转换的增益系数。
画面显示单元14，用于基于图像转换算法并采用所述增益系数，将所述当前帧画面由第一图像格式转换为第二图像格式，并控制所述背光电路以所述PWM占空比对应的背光亮度对第二图像格式的所述当前帧画面进行显示。
具体的，画面显示单元14可以基于图像转换算法并采用所述增益系数，将所述当前帧画面由第一图像格式转换为第二图像格式，并控制所述背光电路以所述PWM占空比对应的背光亮度对第二图像格式的所述当前帧画面进行显示，可以理解的是，根据所述增益系数采用图像转换算法将当前帧画面进行格式转换，并根据所述PWM占空比控制背光电路对格式转换后的图像进行显示，例如，将RGB图像转换为RGBW图像，图像处理设备获取增益系数和PWM占空比，以所述增益系数对RGB图像进行转换，控制背光电路以所述PWM占空比对应的背光亮度对RGBW图像的当前帧画面进行显示。
具体的，请一并参见图4，为本发明实施例提供了一种图像检测单元11的结构示意图。如图4所示，本发明实施例的所述图像检测单元11可以包括：占比检测子单元111和占比确定子单元112。
占比检测子单元111，用于分别检测所获取的目标图像的当前帧画面中目标颜色的占比和纯色的占比；
具体的，占比检测子单元111可以分别检测所获取的目标图像的当前帧画面中目标颜色的占比和纯色的占比，可以理解的是，所述目标颜色为在显示时受背景色影响较大的颜色，所述纯色为画面中的饱和色，例如，画面在显示时黄色受背景色影响较大，图像处理设备获取目标图像中当前帧画面后，分别检测画面中黄色的占比和纯色的占比。
占比确定子单元112，用于对所述目标颜色的占比进行加权处理，并将加权处理后的所述目标颜色的占比和所述纯色的占比确定为饱和色占比。
具体的，占比确定子单元112可以对所述目标颜色的占比进行加权处理， 并将加权处理后的所述目标颜色的占比和所述纯色的占比确定为饱和色占比，可以理解的是，所述加权处理是改变目标颜色的占比，目标颜色在显示时受背景色影响较大，在进行图像格式转换时，图像中目标颜色区域显示效果比其它饱和色区域的显示效果更暗，所以增加目标颜色的占比系数，可以减小在图像格式转换后目标颜色区域与其它饱和色区域的亮度显示偏差，加权处理后的目标颜色的占比和纯色的占比确定为饱和色占比，例如，所述纯色占比为10％，黄色占比为1％，对黄色进行3倍加权处理，加权处理后的黄色的占比和纯色的占比为12％，所述饱和色占比为12％。
具体的，请一并参见图5，为本发明实施例提供了一种画面显示单元14的结构示意图。如图5所示，本发明实施例的所述画面显示单元14可以包括：格式转换子单元141和画面显示子单元142。
格式转换子单元141，用于基于第一预设步长获取初始系数和所述增益系数间的渐变系数，基于图像转换算法并采用所述渐变系数和所述增益系数以逐帧切换的方式，将所述当前帧画面由第一图像格式转换为第二图像格式；
具体的，格式转换子单元141基于第一预设步长获取初始系数和所述增益系数间的渐变系数，基于图像转换算法并采用所述渐变系数和所述增益系数以逐帧切换的方式，将所述当前帧画面由第一图像格式转换为第二图像格式，可以理解的是，所述逐帧切换的方式是一种多次切换的方法，图像处理设备获取初始系数，所述初始系数经过多次切换，最后切换为所述增益系数，所述渐变系数为初始系数切换后的增益系数，所述第一预设步长为所述初始系数切换为渐变系数的变化量，基于图像转换算法，图像处理设备采用所述渐变系数和所述增益系数将所述当前帧画面由第一图像格式转换为第二图像格式；例如，基于RGBW转换算法，图像处理设备将RGB图像转换为RGBW图像，所述初始系数为1.1，所述增益系数为1.4，第一预设步长为0.1，经过一次逐帧切换，所述初始系数1.1切换为渐变系数1.2，基于RGBW转换算法，图像处理设备以渐变系数1.2将RGB图像转换为RGBW图像，再经过一次逐帧切换，所述渐变系数1.2切换为渐变系数1.3，基于RGBW转换算法，图像处理设备以渐变系数1.3将RGB图像转换为RGBW图像，再经过一次逐帧切换，所述渐变系数1.3切换为增益系数1.4，基于RGBW转换算法，图像处理设备以增益系 数1.4将RGB图像转换为RGBW图像。
画面显示子单元142，用于基于第二预设步长获取初始占空比和所述PWM占空比间的渐变占空比，采用所述渐变占空比和所述PWM占空比以逐帧切换的方式，控制所述背光电路对第二图像格式的所述当前帧画面进行显示。
具体的，画面显示子单元142基于第二预设步长获取初始占空比和所述PWM占空比间的渐变占空比，采用所述渐变占空比和所述PWM占空比以逐帧切换的方式，控制所述背光电路对第二图像格式的所述当前帧画面进行显示，可以理解的是，所述逐帧切换的方式是一种多次切换的方法，图像处理设备获取初始占空比，所述初始占空比经过多次切换，最后切换为所述PWM占空比，所述渐变占空比为初始占空比切换后的PWM占空比，所述第二预设步长为所述初始占空比切换为渐变占空比的变化量，图像处理设备采用所述渐变占空比和所述PWM占空比控制所述背光电路对第二图像格式的所述当前帧画面进行显示；例如，基于RGBW转换算法，图像处理设备将RGB图像转换为RGBW图像，所述初始占空比为0.5，所述PWM占空比为0.8，第二预设步长为0.1，经过一次逐帧切换，所述初始占空比0.5切换为渐变占空比0.6，图像处理设备以渐变占空比0.6控制所述背光电路对RGBW图像的所述当前帧画面进行显示，再经过一次逐帧切换，所述渐变占空比0.6切换为渐变占空比0.7，图像处理设备以渐变占空比0.7控制所述背光电路对RGBW图像的所述当前帧画面进行显示，再经过一次逐帧切换，所述渐变占空比0.7切换为PWM占空比0.8，图像处理设备以PWM占空比0.8控制所述背光电路对RGBW图像的所述当前帧画面进行显示。
在本发明实施例中，通过检测所获取的目标图像中当前帧画面的饱和色占比，根据饱和色占比获取用于显示当前帧画面的背光电路的脉冲宽度调制PWM占空比和对当前帧画面进行图像格式转换的增益系数，最后基于图像转换算法并采用增益系数，将当前帧画面由第一图像格式转换为第二图像格式，并控制背光电路以PWM占空比对应的背光亮度对第二图像格式的当前帧画面进行显示。通过检测所获取的目标图像中当前帧画面的饱和色占比获取对应的PWM占空比和增益系数，采用渐变系数和增益系数以逐帧切换的方式将所 述当前帧画面由第一图像格式转换为第二图像格式，采用渐变占空比和PWM占空比以逐帧切换的方式，控制所述背光电路对第二图像格式的所述当前帧画面进行显示；能够智能控制显示画面的背光亮度，智能控制格式转换过程中的增益系数，能够解决在画面显示时出现饱和色相比非饱和色偏暗的问题，能够避免不同饱和色占比的画面在切换时出现的闪烁现象，提高了终端的显示效果。
请参见图6，为本发明实施例提供了一种电子设备的结构示意图。如图6所示，本发明实施例的所述电子设备可以包括：壳体600、电路板601、处理器602、通信总线603、输入设备604、输出设备605和存储器606，其中，电路板601安置在壳体600围成的空间内部，处理器602、通信总线603、存储器606、输入设备604和输出设备605设置在电路板601上；通信总线603用于实现这些组件之间的连接通信。其中，存储器606可以是高速RAM存储器，也可以是非不稳定的存储器(non-volatile memory)，例如至少一个磁盘存储器。存储器606可选的还可以是至少一个位于远离前述处理器602的存储设备。其中，处理器602可以结合图3-5所描述的图像处理设备，存储器606中存储可执行程序代码；且处理器602通过读取存储器606中存储的可执行程序代码来运行与可执行程序代码对应的程序，以用于执行以下步骤：
控制输入设备604检测所获取的目标图像中当前帧画面的饱和色占比；
控制输入设备604根据所述饱和色占比获取用于显示所述当前帧画面的背光电路的脉冲宽度调制PWM占空比；
控制输入设备604根据所述饱和色占比获取对所述当前帧画面进行图像格式转换的增益系数；
控制处理器602基于图像转换算法并采用所述增益系数，将所述当前帧画面由第一图像格式转换为第二图像格式，并控制所述背光电路以所述PWM占空比对应的背光亮度对第二图像格式的所述当前帧画面进行显示。
在可选的实施例中，控制处理器602检测所获取的目标图像中当前帧画面的饱和色占比，并调用存储器606中存储的可执行程序代码执行具体以下操作：
分别检测所获取的目标图像的当前帧画面中目标颜色的占比和纯色的占比；
对所述目标颜色的占比进行加权处理，并将加权处理后的所述目标颜色的占比和所述纯色的占比确定为饱和色占比。
在可选的实施例中，控制处理器602根据所述饱和色占比，并调用存储器606中存储的可执行程序代码执行获取用于显示所述当前帧画面的背光电路的脉冲宽度调制PWM占空比，具体执行以下操作：
基于占比和占空比的第一关系函数获取所述饱和色占比对应的用于显示所述当前帧画面的背光电路的PWM占空比。
在可选的实施例中，控制处理器602根据所述饱和色占比，并调用存储器606中存储的可执行程序代码执行获取对所述当前帧画面进行图像格式转换的增益系数，具体执行以下操作：
基于占比和系数的第二关系函数获取所述饱和色占比对应的对所述当前帧画面进行图像格式转换的增益系数。
在可选的实施例中，控制处理器602基于图像转换算法并采用所述增益系数，调用存储器606中存储的可执行程序代码执行将所述当前帧画面由第一图像格式转换为第二图像格式，并控制所述背光电路以所述PWM占空比对应的背光亮度对第二图像格式的所述当前帧画面进行显示，具体执行以下操作：
基于第一预设步长获取初始系数和所述增益系数间的渐变系数，基于图像转换算法并采用所述渐变系数和所述增益系数以逐帧切换的方式，将所述当前帧画面由第一图像格式转换为第二图像格式；
基于第二预设步长获取初始占空比和所述PWM占空比间的渐变占空比，采用所述渐变占空比和所述PWM占空比以逐帧切换的方式，控制所述背光电路对第二图像格式的所述当前帧画面进行显示。
在本发明实施例中，通过检测所获取的目标图像中当前帧画面的饱和色占比，根据饱和色占比获取用于显示当前帧画面的背光电路的脉冲宽度调制PWM占空比和对当前帧画面进行图像格式转换的增益系数，最后基于图像转换算法并采用增益系数，将当前帧画面由第一图像格式转换为第二图像格式，并控制背光电路以PWM占空比对应的背光亮度对第二图像格式的当前帧画 面进行显示。通过检测所获取的目标图像中当前帧画面的饱和色占比获取对应的PWM占空比和增益系数，采用渐变系数和增益系数以逐帧切换的方式将所述当前帧画面由第一图像格式转换为第二图像格式，采用渐变占空比和PWM占空比以逐帧切换的方式，控制所述背光电路对第二图像格式的所述当前帧画面进行显示；能够智能控制显示画面的背光亮度，智能控制格式转换过程中的增益系数，能够解决在画面显示时出现饱和色相比非饱和色偏暗的问题，能够避免不同饱和色占比的画面在切换时出现的闪烁现象，提高了终端的显示效果。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random Access Memory，RAM)等。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (10)

  1. 一种图像处理方法，其中，包括：
    检测所获取的目标图像中当前帧画面的饱和色占比；
    根据所述饱和色占比获取用于显示所述当前帧画面的背光电路的脉冲宽度调制PWM占空比；
    根据所述饱和色占比获取对所述当前帧画面进行图像格式转换的增益系数；
    基于图像转换算法并采用所述增益系数，将所述当前帧画面由第一图像格式转换为第二图像格式，并控制所述背光电路以所述PWM占空比对应的背光亮度对第二图像格式的所述当前帧画面进行显示。
  2. 根据权利要求1所述的方法，其中，所述检测所获取的目标图像中当前帧画面的饱和色占比，包括：
    分别检测所获取的目标图像的当前帧画面中目标颜色的占比和纯色的占比；
    对所述目标颜色的占比进行加权处理，并将加权处理后的所述目标颜色的占比和所述纯色的占比确定为饱和色占比。
  3. 根据权利要求1所述的方法，其中，所述根据所述饱和色占比获取用于显示所述当前帧画面的背光电路的脉冲宽度调制PWM占空比，包括：
    基于占比和占空比的第一关系函数获取所述饱和色占比对应的用于显示所述当前帧画面的背光电路的PWM占空比。
  4. 根据权利要求1所述的方法，其中，所述根据所述饱和色占比获取对所述当前帧画面进行图像格式转换的增益系数，包括：
    基于占比和系数的第二关系函数获取所述饱和色占比对应的对所述当前帧画面进行图像格式转换的增益系数。
  5. 根据权利要求1所述的方法，其中，所述基于图像转换算法并采用所述增益系数，将所述当前帧画面由第一图像格式转换为第二图像格式，并控制所述背光电路以所述PWM占空比对应的背光亮度对第二图像格式的所述当前帧画面进行显示，包括：
    基于第一预设步长获取初始系数和所述增益系数间的渐变系数，基于图像转换算法并采用所述渐变系数和所述增益系数以逐帧切换的方式，将所述当前帧画面由第一图像格式转换为第二图像格式；
    基于第二预设步长获取初始占空比和所述PWM占空比间的渐变占空比，采用所述渐变占空比和所述PWM占空比以逐帧切换的方式，控制所述背光电路对第二图像格式的所述当前帧画面进行显示。
  6. 一种图像处理设备，其中，包括：
    图像检测单元，用于检测所获取的目标图像中当前帧画面的饱和色占比；
    占空比获取单元，用于根据所述饱和色占比获取用于显示所述当前帧画面的背光电路的脉冲宽度调制PWM占空比；
    系数获取单元，用于根据所述饱和色占比获取对所述当前帧画面进行图像格式转换的增益系数；
    画面显示单元，用于基于图像转换算法并采用所述增益系数，将所述当前帧画面由第一图像格式转换为第二图像格式，并控制所述背光电路以所述PWM占空比对应的背光亮度对第二图像格式的所述当前帧画面进行显示。
  7. 根据权利要求6所述的设备，其中，所述图像检测单元包括：
    占比检测子单元，用于分别检测所获取的目标图像的当前帧画面中目标颜色的占比和纯色的占比；
    占比确定子单元，用于对所述目标颜色的占比进行加权处理，并将加权处理后的所述目标颜色的占比和所述纯色的占比确定为饱和色占比。
  8. 根据权利要求6所述的设备，其中，所述占空比获取单元具体用于基于占比和占空比的第一关系函数获取所述饱和色占比对应的用于显示所述当 前帧画面的背光电路的PWM占空比。
  9. 根据权利要求6所述的设备，其中，所述增益系数获取单元具体用于基于占比和系数的第二关系函数获取所述饱和色占比对应的对所述当前帧画面进行图像格式转换的增益系数。
  10. 根据权利要求6所述的设备，其中，所述画面显示单元包括：
    格式转换子单元，用于基于第一预设步长获取初始系数和所述增益系数间的渐变系数，基于图像转换算法并采用所述渐变系数和所述增益系数以逐帧切换的方式，将所述当前帧画面由第一图像格式转换为第二图像格式；
    画面显示子单元，用于基于第二预设步长获取初始占空比和所述PWM占空比间的渐变占空比，采用所述渐变占空比和所述PWM占空比以逐帧切换的方式，控制所述背光电路对第二图像格式的所述当前帧画面进行显示。
PCT/CN2018/074611 2017-10-31 2018-01-30 一种图像处理方法及其设备 Ceased WO2019085299A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/996,808 US10497321B2 (en) 2017-10-31 2018-06-04 Image processing method and device thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711047290.5 2017-10-31
CN201711047290.5A CN107734325A (zh) 2017-10-31 2017-10-31 一种图像处理方法及其设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/996,808 Continuation US10497321B2 (en) 2017-10-31 2018-06-04 Image processing method and device thereof

Publications (1)

Publication Number Publication Date
WO2019085299A1 true WO2019085299A1 (zh) 2019-05-09

Family

ID=61203614

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/074611 Ceased WO2019085299A1 (zh) 2017-10-31 2018-01-30 一种图像处理方法及其设备

Country Status (2)

Country Link
CN (1) CN107734325A (zh)
WO (1) WO2019085299A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109753435B (zh) * 2018-12-29 2022-02-01 北京云测信息技术有限公司 一种软件测试方法和装置
CN110599967B (zh) * 2019-09-19 2021-06-08 深圳市万普拉斯科技有限公司 图像显示方法、装置、电子设备及可读存储介质
CN112581914B (zh) * 2019-09-29 2022-03-29 上海海思技术有限公司 图像处理方法及装置
CN112085679B (zh) * 2020-09-08 2022-03-22 眸芯科技（上海）有限公司 宽度调节的边缘增强处理方法及应用

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080047723A (ko) * 2006-11-27 2008-05-30 엘지디스플레이 주식회사 액정 표시장치의 구동장치와 그 구동방법
CN102122501A (zh) * 2010-12-31 2011-07-13 福建华映显示科技有限公司 红绿蓝白光显示系统的背光调整装置及其方法
CN104077997A (zh) * 2014-07-17 2014-10-01 深圳市华星光电技术有限公司 Rgb到rgbw的颜色转换系统和方法
CN106373517A (zh) * 2016-10-31 2017-02-01 北京集创北方科技股份有限公司 显示器及显示方法
CN106652920A (zh) * 2016-12-23 2017-05-10 青岛海信电器股份有限公司 背光控制信号生成电路、方法及液晶显示设备
CN106782370A (zh) * 2016-12-20 2017-05-31 武汉华星光电技术有限公司 一种显示面板的驱动方法及驱动装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100397477C (zh) * 2005-01-17 2008-06-25 胜华科技股份有限公司 一种提高显示面板亮度与影像品质的影像处理装置与方法
CN104867471B (zh) * 2015-06-15 2018-08-07 Tcl集团股份有限公司 一种rgb转rgbw的方法、装置及rgbw显示设备
CN106128405B (zh) * 2016-09-06 2018-10-09 武汉华星光电技术有限公司 一种调整rgbw面板的纯色画面亮度的系统及方法
CN106775550A (zh) * 2016-12-21 2017-05-31 Tcl集团股份有限公司 一种图片显示方法及装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080047723A (ko) * 2006-11-27 2008-05-30 엘지디스플레이 주식회사 액정 표시장치의 구동장치와 그 구동방법
CN102122501A (zh) * 2010-12-31 2011-07-13 福建华映显示科技有限公司 红绿蓝白光显示系统的背光调整装置及其方法
CN104077997A (zh) * 2014-07-17 2014-10-01 深圳市华星光电技术有限公司 Rgb到rgbw的颜色转换系统和方法
CN106373517A (zh) * 2016-10-31 2017-02-01 北京集创北方科技股份有限公司 显示器及显示方法
CN106782370A (zh) * 2016-12-20 2017-05-31 武汉华星光电技术有限公司 一种显示面板的驱动方法及驱动装置
CN106652920A (zh) * 2016-12-23 2017-05-10 青岛海信电器股份有限公司 背光控制信号生成电路、方法及液晶显示设备

Also Published As

Publication number Publication date
CN107734325A (zh) 2018-02-23

Similar Documents

Publication Publication Date Title
US10672363B2 (en) Color rendering for images in extended dynamic range mode
CN101340510B (zh) 一种视频增强的方法及其装置
US11735147B1 (en) Foveated display burn-in statistics and burn-in compensation systems and methods
CN112055875A (zh) 电子显示器部分图像帧更新系统和方法
JP2008109669A (ja) 映像のチラつきを改善するディスプレイ装置および方法
TW201403582A (zh) 節電的顯示控制方法和裝置以及非暫時電腦可讀記錄介質
WO2019085299A1 (zh) 一种图像处理方法及其设备
CN107799093A (zh) 调节终端屏幕亮度的方法、终端及计算机可读存储介质
CN108200420B (zh) 图像调节方法、装置、可读存储介质及终端
JP2012079306A (ja) ホワイトボードの画像を調整する方法、装置及びシステム
JP2021516363A (ja) 画素コントラスト制御システム及び方法
US20230343269A1 (en) Temperature-Based Pixel Drive Compensation
US10497321B2 (en) Image processing method and device thereof
US12592177B2 (en) Foveated display burn-in statistics and burn-in compensation systems and methods
US10971079B2 (en) Multi-frame-history pixel drive compensation
CN116489377A (zh) 图像处理方法和电子设备
JP2019087844A (ja) 画像処理装置、表示装置、および画像処理方法
CN105654925B (zh) 高动态范围图像处理方法及系统
US11817063B2 (en) Perceptually improved color display in image sequences on physical displays
CN116364006A (zh) 显示方法及装置
JP2018156813A (ja) バックライト制御装置、映像表示装置及びバックライト制御方法
CN107578753B (zh) 移动终端及显示屏亮度调节处理方法、及存储介质
CN101383975A (zh) 图像处理的方法及装置及其电子装置
CN111613168B (zh) 一种影像显示处理方法、装置以及计算机可读存储介质
US12046179B2 (en) Color display in image sequences on physical displays

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18874293

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18874293

Country of ref document: EP

Kind code of ref document: A1