Greetings Everyone,
I would like to programmtically use GDAL to write a C++ program that takes
two Geotiff images and uses the first image to create a mask that will be
applied to the second image. The first image geographically contains the second
image. The mask is computed from the first image using certain criteria on the
values of its pixels. The mask is used to limit the processing of the second
image into only the areas specified by the mask. The results of the processing
is a new image that has the same projections as the second image.
A first elementray solution I was thinking of is to use
GDALCreateGenImgProjTransformer() to create the transformer between the first
and the second image. Then, loop over the pixels of the second image and call
GDALGenImgProjTransform() to find the corresponding pixel in the first image,
compute the mask, and process the pixel of the first image accordingly. The
results of the processing are written into disk using Create()
1- Any inputs on how to improve this elementray solution? Is it possible to
use GDALWrapper for that?
2- Is there an easy way for creating an output file with the same metadata
as the second image?
3- Is there any code I can look at for doing the masking?
Any help on this is very appreciated.
Thanks a lot in advance.
~Belaid...
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