References

1. Gervautz, M. & Purgathofer, W. "A Simple Method for Color Quantization: Octree Quantization", Graphics Gems, Academic Press, 1990

2. Heckbert, P. "Color Image Quantization for Frame Buffer Display", Computer Graphics, Vol 16, #3, pp. 297-303, 1982

3. Hill, F. S. Jr. "Computer Graphics", Macmillna Publishing Co., 1990

4. Wu, Xiaolin "Color Quantization by Dynamic Programming and Principle Analysis", ACM Transactions on Graphics, Vol. 11, No. 4, pp. 348-372, 1992

5. Wu, Xiaolin "Efficient Statistical Computations for Optimal Color Quantization", Graphics Gems II, Academic Press, 1991