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August 2004
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2004.08.12 15:23 "Re: From bmp to Tiff", by Bob Friesenhahn
On Thu, 12 Aug 2004, Joris wrote: > > ** color space ** > > Some people will dissagree, but in my opinion, 'blending' colors, or any color > calculation like the 'pixel area averaging' described above, is an operation > that only makes sense to the human eye. That is why, I think, you need a color > space that makes sense to the human eye. CIE L*a*b* is most suitable in my > experience. The further away from such a perceptually uniform color space, the > less pleasing the results. For instance, RGB might still be relatively usefull > for such algorithms, CMYK might not. For image resizing, I am one of those who disagree. Image resizing is almost always done on a planar level so color perception is usually such a minor factor that it can generally be ignored. The most important factor with quality of image resizing is how well the algorithm antialises the results (avoids "jaggies") without excessively softening or otherwise distorting the image. And of course, this topic has nothing to do with TIFF. Bob ====================================== Bob Friesenhahn bfriesen@simple.dallas.tx.us http://www.simplesystems.org/users/bfriesen