[Gdal-dev] Gettting Image Resolution

Frank Warmerdam warmerdam at pobox.com
Sun Mar 2 12:21:35 EST 2003

Ayman Kamal wrote:
> How can I get the resolution of the image using GDAL?


I assume you are wanting the size of a pixel in georeferenced coordinates?
If so, use the GetGeoTransform() method on the GDALDataset. It fills in a
six parameter double array.  geotransform[1] is normally the width of a
pixel, and geotransform[5] is usually the height of a pixel negated.
If the image is rotated things are more complicated.

Best regards,

I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent

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