Color Appearance Models

Color Appearance

Color Appearance attempts to identify perceptual quantities that identify what we see in a solid color patch in some well defined environment. A good appearance model takes into account eye adaptation to background, field of view background, and surrounding field, among other things.

There has been a significant amount of work on color appearance (see work by R.W.G. Hunt, Ronnie Luo, Mark Fairchild, etc), and in 1997 a new standard was formed.

CIECAM 97

CIECAM 97 was agreed upon in May of 1997 at a CIE meeting in Kyoto. Since that time, some documentation on this standard has been written, and one public implementation (in IDL) was made available (see Mark Fairchild's site).

Our goal in this project has been to produce a comparable Matlab implementation, and work on some tools to help visualize appearance coordinates, and demonstrate usefulness of the model.