LabelImg is now part of the Label Studio community. The popular image annotation tool created by Tzutalin is no longer actively being developed, but you can check out Label Studio, the open source data labeling tool for images, text, hypertext, audio, video and time-series data.
Opening some TIFF files but not others, I get a dialog saying "Error opening file, Make sure is a valid image file, OK." STDERR on the terminal says "TIFFReadDirectory: Warning, Unknown field with tag 347 (0x15b) encountered. \n foo: JPEG compression support is not configured. \n foo: Sorry, requested compression method is not configured."
Opening some TIFF files but not others, I get a dialog saying "Error opening file, Make sure is a valid image file, OK." STDERR on the terminal says "TIFFReadDirectory: Warning, Unknown field with tag 347 (0x15b) encountered. \n foo: JPEG compression support is not configured. \n foo: Sorry, requested compression method is not configured."