Re: GM -normalize without clipping highlights
[email protected] Tue, 20 Jul 2010 20:54:46 +0000 (UTC)
| Newsgroups | gmane.comp.video.graphicsmagick.core |
|---|---|
| Message-ID | <930185230.176931.1279659286694.JavaMail.root@sz0023a.westchester.pa.mail.comcast.net> |
That's why I suggested -level; unlike -normalize, it applies the
same amount of stretch to all three color channels. Grey pixels
stay gray and colour balance stays ok.
In my previous message I had the order of parameters wrong:
it's
-level min/gamma/max
e.g., -level 0/1.0/50000
if you've used "identify" to find out that the maximum
value of the red, green, blue channels is 50000, and
you don't want to change the image gamma.
Glenn
----- Original Message -----
From: "Charlie De" <[email protected]>
> I don't enjoy the wrong colour balance
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