SATURATION VARYING COLOR SPACE

摘要

A first color component of a pixel or scene entity is modified using a color correction curve defined at least partly by a second color component of this pixel or entity. Each pixel or entity has its own separate color correction curve, independent of the color correction curves of other pixels or entities. The saturation value of a pixel or scene entity may be modified based on its luminance value. The luminance value determines a saturation gamma function curve, mapping the original saturation value of a pixel or entity to a new saturation value. The unilluminated color of a pixel or of an illuminated entity in a scene being rendered may also be taken into account. This output color may be stored in the appropriate pixel of an image or combined with colors from other portions of the scene being rendered.

主权项

1. A method of modifying the saturation of an image, the method comprising:
receiving color data for a pixel, wherein the color data includes a saturation value and at least one other value; determining a saturation correction value from the other value of the color data; and applying the saturation correction value to the saturation value of the pixel to create modified color data including a modified saturation value.