That's interesting because everything I've read about tesseract says that white/black or black/white (foreground/background) doesn't matter because it uses edge detection. (Outlines)
https://research.google.com/pubs/archive/33418.pdf "by inspection of the nesting of outlines, and the number of child and grandchild outlines, it is simple to detect inverse text and recognize it as easily as black-on-white text" -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/f3d16f69-51bf-4785-a23f-3c9dddda36c5%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.

