On Fri, 26 Apr 2002 03:29:35 -0400, Clarence Verge wrote: <snip>
> Tell him to zip the .BMPs and rename them to .ZBM. I have heard some stories about a phenomena called "lossy compression" According to these stories it is OK to zip images in some formats, but not others. Among those formats that are supposedly OK to zip are the BMPs. If you zip a JPG and then unzip it, the resolution will not be as keen as seen in the original before it was zipped. I don't know if these stories are true and I have never taken the time to conduct any experiments to see for myself. If it is true that the phenomena called "lossy compression" does in fact exist, is the loss of resolution noticeable to the naked eye? Also, if such a phenomena does indeed exist, how can it be explained? Two other questions I have are these: 1. If there is such a thing as "lossy compression", could it be mimimized by using ARJ, ARC, DWC, LHA, TAR, or some other alternative to PKZIP? 2. Of the many image formats that we know of, and if it is true that so called "lossy compression" is a problem in the case of some image formats, which types should not be zipped? It could be that all this talk I have heard about "lossy compression" is just a bunch of bull, but I tell you that a lot of people believe it. I won't believe it unless I can find an authoritative source on the subject which confirms the existence of the reported phenomena. The truth is out there. Does anyone know the URL? Sam Heywood -- This mail was written by user of The Arachne Browser - http://arachne.cz/
