Revision as of 02:19, 23 February 2021 edit Artoria2e5 (talk \| contribs) Extended confirmed users, IP block exemptions 38,960 edits No edit summary ← Previous edit		Revision as of 02:20, 23 February 2021 edit undo Artoria2e5 (talk \| contribs) Extended confirmed users, IP block exemptions 38,960 edits →CIELAB Next edit →
Line 61: One of the limitations of CIELAB is that it does not offer a full-fledged chromatic adaptation in that it performs the [[von Kries transform]] method directly in the XYZ color space (often referred to as “wrong von Kries transform”), instead of changing into the [[LMS color space]] first for more precise results. ICC profiles circumvent this shortcoming by using the [[LMS color space#CIECAM97s, LLAB\|Bradford transformation matrix]] to the LMS color space (which had first appeared in the [[#LLAB\|LLAB color appearance model]]) in conjunction with CIELAB. Due to the "wrong" transform, CIELAB is known to perform poorly when a non-reference illuminant XYZ value is used, making it a poor CAM. The wrong transform also seems responsible for its irregular blue hue, which bends towards purple as L changes, making it also a non-perfect UCS. ===Nayatani et al. model===

Color appearance model: Difference between revisions