US 11,869,175 B2
Perceptually accurate image rendering
Edward M. Granger, Novato, CA (US)
Filed by Edward M. Granger, Novato, CA (US)
Filed on Jun. 10, 2022, as Appl. No. 17/837,275.
Application 17/837,275 is a continuation of application No. 17/495,972, filed on Oct. 7, 2021, granted, now 11,361,413.
Application 17/495,972 is a continuation of application No. 17/483,203, filed on Sep. 23, 2021, granted, now 11,283,967, issued on Mar. 22, 2022.
Claims priority of provisional application 63/082,656, filed on Sep. 24, 2020.
Prior Publication US 2022/0309630 A1, Sep. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 1/60 (2006.01); G06T 5/00 (2006.01); G06T 7/90 (2017.01); G06T 5/50 (2006.01)
CPC G06T 5/009 (2013.01) [G06T 5/003 (2013.01); G06T 5/50 (2013.01); G06T 7/90 (2017.01); H04N 1/603 (2013.01); H04N 1/6005 (2013.01); H04N 1/6016 (2013.01); H04N 1/6058 (2013.01)] 13 Claims
OG exemplary drawing
 
5. A color management system for displaying an image comprising:
a datastore containing colorant data for a plurality of hue and saturation values;
a linear extraction module configured to extract general HSV values from image data for an image, where H is hue, S is saturation, and V is a brightness color element; and
a multidimensional EOTF module configured, for each pixel of the image data, to:
use the general HSV values to determine universal perceived brightness, Bp, and universal perceived-chroma, Cp, values for the pixel;
apply a transform to any of H, Bp, and Cp; and
scale the colorant data by the Bp and Cp values to obtain scaled colorant data;
wherein the image is displayed using the scaled colorant data for each pixel.