in logs from one user, there was an assertion error from the segmentation functions that the third axis of the thumbnail array did not have 3 items. it could have been an RGBA or some other type of image... let's make sure we make it RGB, because that's what we expect.
https://github.com/SBU-BMI/wsinfer/blob/270308ff1d15602465fdb850a35277b22de60a8c/wsinfer/patchlib/__init__.py#L123
in logs from one user, there was an assertion error from the segmentation functions that the third axis of the thumbnail array did not have 3 items. it could have been an RGBA or some other type of image... let's make sure we make it RGB, because that's what we expect.