I am experimenting with Tesseract 4.1.1 using C# to extract text from black 
and white or greyscale TIF images of semi structured forms that are 300 
dpi. 

The results are really promising except when some of the text is inverted 
(ie white on black). In these cases the results are poor. Can anyone 
suggest ways tackle this? All the discussions I have seen are for when the 
whole image is inverted, but here it is only some of the text?

Regards,

Chris

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