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Figure 5
Example medium-magnification images. Human operator-selected locations are marked in yellow. The input to the U-Net is the image without any marking for the selection locations, and the output is a map with a 1 at each pixel where a selection was made and 0 elsewhere. In rare cases (right), holes can be darker than the surrounding region.

IUCrJ
Volume 10| Part 1| January 2023| Pages 90-102
ISSN: 2052-2525
https://doi.org/10.1107/S2052252522010612