[Gdal-dev] LUT colour correction to GDAL

[Frank Warmerdam]

Jukka Rahkonen wrote:
> Hi,
> 
> After struggling quite a bit with simple LUT stretch operations on multi-channel
> images by using some high-end software I concluded that LUT colour correction in
> MapServer might do the job faster and more reliable.  However, the work flow is
> somehow complicated, especially with multi-channel images.  Would it be very
> hard to add LUT colour correction feature to GDAL? 
> Another thing is that I would like to see the NoData values respected so I could
> run mosaic process afterwards :(
> Starting 70-hour computing from beginning,

Jukka,

What sort of lut color correction are you wanting?  I have recently
introduced a new "gdalenhance" utility but for now it is really mostly
useful for applying histogram equalization to images - including as part
of a 16 to 8 bit conversion.

Are you wanting to create enhancement definitions in an external tool like
gimp?

Best regards,
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