Asger K. Alstrup Nielsen wrote: > You are both using a RGB color model, but this is not relevant. > Even with a HSL or Munsell color space, the transformation would > be the same: You want the Most Significant Bits. > Why? Because you loose more information by dropping more significant > bits. > > So, you should take the upper 8 bits, and if you want to do better > than that, round according to the 7th bit.
I want to understand, so please give an answer to this: r/g or b has a range from 00000000 to 11111111 or only 6 bits for some graphic cards. converting to for example 4 bit could'nt only take the significant nibble ... Herbert -- http://www.lyx.org/help/
