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non linear quantization

Started by mousecatz August 7, 2007
Hi there!

Can anyone help or give reference about this problem: 

what quantification scheme will be used and how will it be implemented
when i try to render an image in a cellphone screen considering a certain
correction intensity of a square function f(x)=255*sqrt(x/255) and x
ranging from 0 to 255 which represents image intensity? 

i really do appreciate any input.

thanks much,
mousecatz