Sebastian Redl wrote:
Still, it might be called a mistake in the concept foundation of the library that the independent concept of Colour is missing.
Sebastian, There are trade-offs in introducing the concept of a Color separate from that of a Pixel Value. On the one hand, it seems natural to have the concept of a color value in an imaging library, as it plays an important role. On the other hand, a Color is exactly equivalent to a Pixel Value. Introducing two concepts that are identical might confuse people - they may wonder how is one different from the other, how do you convert from one to the other, etc. That means more concepts, more explanations and longer documentation. It might be a good idea, however, to add a sentence clarifying that a pixel is used to represent a color value even outside the context of an image. It would certainly be a mistake to introduce new code in GIL to deal with colors. This may add further complexity and opportunity for performance degradation. Lubomir