Adaptive temporal dither scheme for display devices

An apparatus comprising:

• means for displaying image data including a plurality of image pixels, the displaying means including a plurality of display pixels configured to display a plurality of colors in a color space associated with the displaying means;
• and
• means for processing the image data for display by the displaying means, the processing means configured for:
• mapping the image data to the plurality of display pixels to provide data associated with each color plane in the color space associated with the displaying means, the color plane data including a color value for each display pixel in the displaying means;
• for each color plane:
• identifying display pixels having spatial frequencies below a threshold;
• for each of the identified display pixels, calculating a dither visibility score based at least in part on comparison of the color value for the display pixel and a dither visibility function for the color plane, and
• determining an accumulated dither visibility score for the color plane;
• and
• applying temporal dither to a subset of the plurality of color planes based on the determined accumulated dither visibility scores.

A method for adaptively applying temporal dithering to display an input image having reduced dither visibility on a display device having a plurality of display pixels, each display pixel configured to display a plurality of colors in a color space associated with the display device, the method comprising:

• mapping the input image to the plurality of display pixels to provide data associated with each color plane in the color space associated with the display device, the color plane data including a color value for each display pixel in the display device;
• for each color plane:
• identifying display pixels having spatial frequencies below a threshold;
• calculating a dither visibility score for each of the identified pixels, wherein the dither visibility score is based at least in part on comparison of the color value for the display pixel and a dither visibility function for the color plane;
• and
• determining an accumulated dither visibility score for the color plane;
• and
• applying temporal dither to a subset of the plurality of color planes based on the determined accumulated dither visibility scores,
• wherein the method is performed in its entirety by a physical computing device.

A non-transitory computer storage medium comprising instructions that when executed by a processor cause the processor to perform a method for adaptively applying temporal dithering to display an input image having reduced dither visibility on a display device having a plurality of display pixels, each display pixel configured to display a plurality of colors in a color space associated with the display device, the method comprising:

• mapping the input image to the plurality of display pixels to provide data associated with each color plane in the color space associated with the display device, the color plane data including a color value for each display pixel in the display device;
• for each color plane:
• identifying display pixels having spatial frequencies below a threshold;
• calculating a dither visibility score for each of the identified pixels, wherein the dither visibility score is based at least in part on comparison of the color value for the display pixel and a dither visibility function for the color plane, and
• determining an accumulated dither visibility score for the color plane;
• and
• applying temporal dither to a subset of the plurality of color planes based on the determined accumulated dither visibility scores.