Clip4: Variation of color proportion and brightness over time (Apr. 15, 2003) clip1, clip2, clip3

- In some bright colors like 'white', there is a clipping on brightness. (See the square 5 and 6)
- It would be good to see the plots of the weighted color deviations from the nearest codeword.
- There are multiple light sources.  We made shadow by blocking one light source with a moving object.  The shadow affects color proportions.