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What does Automatic Levels Do?
Posted: Sat Feb 03, 2007 5:51 pm
by JohnFredC
Sounds like a newbie question, but sometimes auto-levels does what I expect and sometimes it doesn't.
What adjustments are made by autolevels and how does it decide the values?
Posted: Sat Feb 03, 2007 10:30 pm
by XnTriq
Hi John!
xnview ([url=http://newsgroup.xnview.com/viewtopic.php?t=3616]Image correction[/url]) wrote:geometra wrote:Hi Pierre:
Can you explain how do you apply auto levels transformation?
I know how Photoshop does it because it is explained at its help. They cut the histogram at the tails by 0.5% of the values previous to the expansion. Are you making any of this? It is important to me to know if I will loos some values if I apply auto-levels and how many.
Congratulations for your work!
Yes i cut histogram too