[gdal-dev] [GDAL_TRANSLATE]Problem with colorimetry

Chaitanya kumar CH chaitanya.ch at gmail.com
Tue Aug 3 10:35:44 EDT 2010


Tacot,

If the red pixels are shaped like a block, it could be a missing tif image.
Otherwise, there may be a discrepancy in the nodata values.
A screenshot of your data can help.

On Tue, Aug 3, 2010 at 5:48 PM, Tacot <cfab13 at hotmail.fr> wrote:

>
> Hi,
>
> I try  to assemblez several TIF to make a unique picture.
> I use this command:
>
>    C:\GDAL\SCAN25_SCOT>gdalbuildvrt truc.vrt C:\GDAL\SCAN25_SCOT\*.tif
> -srcnodata "0 0 0"
>    0...10...20...30...40...50...60...70...80...90...100 - done.
>
>    C:\GDAL\SCAN25_SCOT>gdal_translate -of GTiff
> C:\GDAL\SCAN25_SCOT\truc.vrt C:\GDAL\SCAN25_SCOT\truc.tif
>
>
> But a part of the picture gets a lots of red pixels.
>
> Does someone know why?
>
> Thanks
> Tacot
> --
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-- 
Best regards,
Chaitanya kumar CH.
/tʃaɪθənjə/ /kʊmɑr/
+91-9494447584
17.2416N 80.1426E
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