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Zero mask in ISPRS Potsdam #1727
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@isaaccorley you added the original Potsdam data loader, can you take a look into this? |
I took a look at this and I think the dataset may have been updated or something because I have a prior version of Potsdam that doesn't seem to have this issue. |
I'll make a PR once I figure out the best way to handle this in the dataset class. |
We haven't yet found a license for it so we can't just rehost on HF 😢 |
The download times for their server are awful for me. It hosts Vaihingen as well |
Can you try reaching out to them and find out about this bug and the license? If we know the license we can likely rehost on HF. |
Description
The file
top_potsdam_4_12_label.tif
in5_Labels_all.zip
isn't actually the mask, but seemts to be the mask overlayed on the RGB image. This leads to the 8th sample in the dataset having an all-zero mask.5_Labels_for_participants.zip
does contain the proper mask. Substituting with the image from that archive seems to solve the issue.Making it so that
rgb_to_mask
gives a warning about pixels not in the colormap would be good as well.Steps to reproduce
Version
0.5.0
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