[gdal-dev] Masking

[Patrick Cannon]

Hello,

Has anyone used the GDAL mask feature?

I would like to mark part of an image as transparent.  The area is defined 
as a polygon.

I have been trying to find documentation or examples on how to use the mask 
feature but, so far no luck.

Could someone please point me in the right direction?

Many thanks for your help.

Best regards,
Patrick Cannon
Barco Software LLC