Is there anyway I can preserve image georeferencing information after processing or converting the image via IrfanView? I have a couple of .png files with spatial reference and I'm trying to save them as ecw images. Unfortunately this process destroys the spatial reference vital for using the images in GIS software. If there was a way around this problem it would be a great help. Thanks.
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You'd be better served using a different Stack site. This site is all about code. Check out Geo Info Systems https://gis.stackexchange.com/ – Gray Nov 09 '21 at 11:03
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I would recommend using gdal_translate to handle all your geospatial translation needs.
Assuming that you have a PNG with a world file associated then you can easily convert to ecw (providing that the propitiatory ecw driver is compiled in).
Ian Turton
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Sorry for the late answer, and thanks for your answer. I will have a look at gdal_translate. – Arthur Nov 12 '21 at 07:39
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I've tried a couple of things, but I can't find a good way to compile the ECW driver into my GDAL installation. Do you have any suggestions? – Arthur Nov 12 '21 at 12:15
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