I am using Tesseract to recognize some values from the photo which is taken via camera of a phone. My problem is that I cannot recognize numbers which are written in gray color. I know that tesseract performs binarization on the input image. I manually performed the binarization and I realized that all gray texts disappear after binarization. As you can see in the binarized image, there are not any values appeared infront of sollwert and pos/neg toleranz. I can manually set a high threshold to keep my gray colored text,but I need a automatic way in my app. Beside that, the high threshold returns a mostly black image which it also lost some of information. Do you have any suggestions on how to keep my gray color text after binarization?
Thanks in advance
Issue with binarization of gray colored text of Tesseract
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