Subject 3.02: How do I display a 24 bit image in 8 bits?
[Gems I] pp. 287-293, “A Simple Method for Color Quantization: Octree Quantization” B. Kurz. Optimal Color Quantization for Color Displays. Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition, 1983, pp. 217-224. [Gems II] pp. 116-125, “Efficient Inverse Color Map Computation” This describes an efficient technique to map actual colors to a reduced color map, selected by some other technique described in the other papers. [Gems II] pp. 126-133, “Efficient Statistical Computations for Optimal Color Quantization” Xiaolin Wu. Color Quantization by Dynamic Programming and Principal Analysis. ACM Transactions on Graphics, Vol. 11, No. 4, October 1992, pp 348-372.