I am trying to find a way to get the Geo Transformation (NW corner position, pixel size and rotation) for a given tiff image. I have a tiff which I know is using some coordinate reference system (an UTM projection using the WGS84 reference ellipsoid).

I would like to make it a geotiff using a software by associating, for example, point correspondences between the tiff image and a reference map. I would love to use something like Maptiler, but without the 10k*10k limitation on the image resolution.

For now, the solution I can think of is to downscale the input tiff, use Maptiler to get the GeoTransform, then use GDal to make this tiff a Geotiff by upscaling the pixelSizes by the inverse coefficient.

Are there any free alternatives to generate a geotiff by using correspondences?

1 Answer 1


This process of finding the geotransform or building a geotiff from a given raaster image is known as Geo-Referencing. Instead of using Maptiler, I can use QGis with the GeoReferencer plugin, which, as it is well presented netpalantir and in digital-geography, can also be used with a nice GUI.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.