[FWTools] Background Color Dataset problem

[Vincent Neuilly]

Hi,

First, sorry for my english.

With gdalbuildvrt, I create a vrt (mosaic of all my images). If I use
gdal_translate in order to create a .ecw, with -srcnodata (in gdalbuildvrt)
and -a_nodata (in gdal_translate), I can create a .ecw with the background
color I want. Good.
But, if I use gdalwarp (after gdalbuildvrt and before gdal_translate), I
can't create a .ecw with the background I want. For one mosaic, the
background is pink, for another it's grey... I don't know how to use the
options (-srcnodata ? or vrtnodata ? or dstnodata ?...) to choose myself the
background color I want.
What's the solution ?

I hope I was understandable !
Thanks.
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