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advanced image enhancement
| advanced image enhancement [message #32484] |
Mon, 14 October 2002 07:20 |
David Oesch
Messages: 31
Registered: October 2000
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Hi outthere,
Is there any other possibility to enhance the content of an bytarr
image? I tried BYTSCL and HIST_EQUAL, but ?m actually lokking for a Root
enhancement, also known as a logarithmic transform, which particularly
effective with images whose grey level distribution exhibits right
skewness. The root enhancement stretches the dynamic range of the low
end of the image while compressing its high end. It tends to lend an
overall brightening to the resultant image.Has anyone implemented such
an enhancement in IDL?
Dave
--
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David Oesch - Remote Sensing Research Group
Department of Geography
University of Bern Tel : +41 (0)31 631 8020
Hallerstr. 12 Fax : +49 (0)89 2443 43780
CH - 3012 Bern Mail: David.Oesch@giub.unibe.ch
Switzerland http://www.giub.unibe.ch/remsen
Remote Sensing is...
Staying as far away from the problem as possible.
- G. Archer, World Bank
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