images in cross-platform stacks
tereza at califex.com
Wed May 17 00:51:10 EDT 2006
On May 16, 2006, at 10:47 PM, Richard Gaskin wrote:
> Rev doesn't alter the display of JPEGs or GIFs -- why single out
> PNGs in this way, and why try to adjust for screen gamma when the
> screen is already doing anything that needs to be done there?
and Mark Talluto wrote:
> This is a question that goes way back to the good Dr. Raney. I
> remember having a discussion with him about it. The details are
> fuzzy, but they went something like this: That is the way it is.
I seem to remember something too in the dim past. PNGs, I know,
contain gamma info in their headers in contrast to JPEGs, which may
not. The info is used by rev to display consistent gamma cross-platform.
In the present, I take advantage of it because it shows, on the Mac,
the gamma I can expect in Windows. My applications are wall-to-wall
images. I use FireWorks to make most of my images and set it to
display Windows gamma. I achieve better control over contrast because
I see what (most of) the end users will get.
It's on purpose!
Califex Software, Inc.
800 Water Street
Sauk City, WI 53583
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