[FWTools] Wrong pixels with nearblack

[Vincent Neuilly]

Hi,

This message follows this one
http://lists.maptools.org/pipermail/fwtools/2010-February/001734.html

In fact, my problem was that the whites weren't all white (254, 252,...).
So, I used nearblack (-near 20), and -srcnodata 255 (in gdalbuildvrt). And
the result is perfect.
Result here : http://img39.imageshack.us/img39/8784/final2lm.jpg


Perfect, except that :
http://img714.imageshack.us/img714/1011/erreur.jpg

I don't know why, these pixels nearly white in the original image become
pink or green or black...

How to fix that ?

Please answer, thanks a lot.
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