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Fix nodata values at source edges #38

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systemed opened this issue Jul 17, 2022 · 0 comments
Open

Fix nodata values at source edges #38

systemed opened this issue Jul 17, 2022 · 0 comments

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@systemed
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systemed commented Jul 17, 2022 •
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This is in case anyone else runs into the same issue, really.

I was having issues with artefacts at the edges of source images, caused by nodata values. Adding a call to numpy's nan_to_num in data_to_rgb (encoders.py) fixes it:

data /= interval
data = np.nan_to_num(data, True, 100000.0)
data = np.around(data / 2**round_digits) * 2**round_digits

(100000.0 is from the -b and -i values of my invocation and shouldn't be hardcoded, obviously.)
@leonardehrenfried leonardehrenfried mentioned this issue May 3, 2023
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pdrhlik added a commit to pdrhlik/rio-rgbify that referenced this issue Oct 30, 2024
@pdrhlik
Fix nodata values at source edges
ef9c766 
The original issue suggesting this is here: mapbox#38

It used to create artefacts around the extent of source tif files. This
way they do not appear anymore.
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