LibTiff Mailing List
TIFF and LibTiff Mailing List Archive
December 2006
Previous Thread
Next Thread
Previous by Thread
Next by Thread
Previous by Date
Next by Date
Contact
The TIFF Mailing List Homepage
This list is run by Frank Warmerdam
Archive maintained by AWare Systems
Thread
2006.12.05 18:44 "Re: Grayscale, or is it?", by Joris Van Damme
Bob, Bob Friesenhahn wrote: > > In other words, if you need to display the TIFF greyscale on an sRGB > > monitor, then you're not applying any gamma correction to it, which > > is consistent LibTiff RGBA interface implementation, and very likely > > consistent with 95% of common practice out there? > > Right. If you open a grayscale image and it looks fine on a computer > display without additional gamma correction, then it must be similar > to "sRGB" (which is in itself an attempt to describe what is > "normal"). > > > Do you agree that this most common practice violates the quoted > > remark from the spec? > > It seems to, but the specification authors should not be faulted for > not correctly predicting the future. :-) Thanks, Bob, that's clear. So it seems we have at least two people agree on the fact that greyscale is R=G=B, assuming RGB is sRGB, is the common practice, though it seems to violate a small remark in the spec, and that people would generally speaking do well to follow this common practice. So, that's option 1) in my original post... Best regards, Joris Van Damme info@awaresystems.be http://www.awaresystems.be/ Download your free TIFF tag viewer for windows here: http://www.awaresystems.be/imaging/tiff/astifftagviewer.html