Color and luminance contrast sensitivity function of people with anomalous color vision

Kristian Samu; Klara Wenzel; Karoly Ladunga

doi:10.1117/12.464652

6 June 2002 Color and luminance contrast sensitivity function of people with anomalous color vision

Kristian Samu, Klara Wenzel, Karoly Ladunga

Proceedings Volume 4421, 9th Congress of the International Colour Association; (2002) https://doi.org/10.1117/12.464652
Event: 9th Congress of the International Color Association, 2001, Rochester, NY, United States

Abstract

The experience of a colored picture is formed of the multitude of spots of different colors and shapes projected on the retina of the eye. The more spots we can distinguish the more details we can see and the more information we can get. It can be observed that people of anomalous color vision are at a disadvantage not only from the point of view of the correct recognition of colors but also from that of seeing less detailed than do that of normal trichromats. It is rather difficult to measure the detail of colored pictures formed by seeing. It is practical to carry out the measuring with simplified geometry and in limited colors. The most simple test picture is the grating and it is best to limit the colors to two and to their additive mixtures respectively. The color contrast sensitivity function (CCFS) can be well used to prove that people of anomalous color vision can distinguish less details than those of normal trichromats. Besides this the effect improving color vision (e.g. by color vision correction filters) can also be proved. Several examinations can be made by gratings created with two colors and by changing their various parameters . We have got appreciable data by changing space frequency and contrast, and redefining colored gratings to the CCSF already known in the examination of sight testing. Thereby we succeeded in demonstrating the difference between normal and anomalous trichromats.

Citation Download Citation

Kristian Samu, Klara Wenzel, and Karoly Ladunga "Color and luminance contrast sensitivity function of people with anomalous color vision", Proc. SPIE 4421, 9th Congress of the International Colour Association, (6 June 2002); https://doi.org/10.1117/12.464652

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