Gamma and xsane

Chris Bitmead (chris.bitmead@bigfoot.com)
Fri, 21 May 1999 01:30:40 +0000

I've read a few things about what Gamma is and I think I understand it,
but I'm still not clear on what the Gamma Slider does in xsane.

Does the Gamma Slider:

a) Have no effect on the resulting scan file, it merely assists viewing
on your monitor.

b) Modify the resulting scan file to look pleasant on your monitor (and
thus render it potentially unpleasant on a different monitor).

How does all this relate to web publishing? Let's say I found a utility
to adjust the gamma of my monitor (apparently there is a windows utility
at http://www.entechtaiwan.com). Let's say I adjusted it to an ideal of
1.0. That's wonderful for me, but then if I publish it on the web, it
will look awful for everyone else.

How does it relate to archiving images? Should I leave the gamma alone
for an archived image and only adjust it for a web image?

Also, I seem to be finding (as a newbie user of xsane who's only done a
few scans) that the pics only look ok with the gamma turned right up.
What does this mean?

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