HSV Color Conversion - Imaging toolkit feature Version number:
The HSV color space
Black has a V coordinate of 0. At this point the values of H and S are irrelevant. The point S=0, V=1 is white. Intermediate values of V for S=0 (on the center line) are the grays. When S=0 value of H is irrelevant (called by convention undefined). When S is not zero, H is relevant. For example pure red is at H=0, S=1, V=1.