Abstract: A system and method for color retargeting of an image includes applying a color appearance model to the image to be displayed based in part on a first luminance level. The color appearance model outputs a first set of color responses representing a simulated version of the image at the first luminance level. A color compensation model is further applied to the first set of color responses based in part on a second luminance level. The color compensation model outputs a second set of color responses representing a compensated version of the image. The compensated version of the image may be displayed on a display device set at the second luminance level. At least one of the color appearance model and the color compensation model applies rod-intrusion correction.
Type:
Grant
Filed:
May 19, 2016
Date of Patent:
March 31, 2020
Assignee:
Irystec Software Inc.
Inventors:
Tara Akhavan, Mehdi Rezagholizadeh, Afsoon Soudi
Abstract: The following provides a system and method to display images on a display screen (e.g. via a display panel or by projection) and the processing of image data therefor. In one aspect, the system implements a luminance retargeting method for altering the perceived contrast and/or colors of an image to match their appearance under different luminance levels. In another aspect, the system may provide a method for transforming an image locally within a sub-area of an image to adjust image contrast for display by a display device. In yet another aspect, the system may provide a method for transforming an image of a first luminance to adjust a perceived color hue thereof for display by a display device according to a second luminance. In yet another aspect, the system may provide a method for transforming an image having a first luminance to adjust a color saturation thereof for display by a display device having a second luminance.