Quote:
Originally Posted by ProDigit
Right! It was 2AM when I wrote that, and all the time I just couldn't find the word! lol
Thanks!
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You arrange the main color tree as:
WR|GB|WR
GB|WR|GB or something similar. The resultant resolution for a 600x800 screen is 300x400 which is bad but not as bad as you indicated. Dithering can help as you say to make a more effective use of color. You can certainly get 256 colors if you use RGB color scheme but as you say using a four pixel array reduces that somewhat.
If you consider a 6 bit array of RGB you get 64 colors 2**6. Adding whilte provided additional shades of those 64 colors which is an additional color to the extent that White lightens the color. So if we consider the 4 values of white with the other two bits we end up with 4*64 which is still the full 256 colors. Using 2 bits per pixel takes advantage of the sub-pixel capability of a display as shown at:
http://www.eink.com/technology/howitworks.html
Dale