For "debug.png", I'd suggest first inverting the image, then running Tesseract in the single text line segmentation mode (7), or modes 8/10.
For "debug2.png", running Tesseract with the "-psm 7" option is enough but I advise to invert all such images because Tess often may confuse foreground and background pixels - usually foreground is black. Example command line: tesseract debug_i.png debug_i.png -psm 7 Tested with Tess executable built as of 20150203. Best regards, Dmitri Silaev www.CustomOCR.com On Thu, Nov 19, 2015 at 8:04 PM, Sean Leffler <[email protected]> wrote: > Hello! I'm new to Tesseract and I'm trying to use it to read text which > will always be similar to these three images (always in the same font and > with similar, relatively noise-free backgrounds.) I'm aware the images are > very small; however, what puzzles me is that Tesseract seems to be > perfectly fine with the image I've attached under the name "working.png". > For the other two, it fails to detect any text. Is there anything I could > do to improve this? I've tried scaling up the images and that didn't seem > to do anything. Thanks in advance! > > -- > 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 http://groups.google.com/group/tesseract-ocr. > To view this discussion on the web visit > https://groups.google.com/d/msgid/tesseract-ocr/5fe49e71-5f55-4fb2-b1af-3097ceee4bc7%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/5fe49e71-5f55-4fb2-b1af-3097ceee4bc7%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- 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 http://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/CAKzLxFPR4oiW%2BuiGd3oc1c7TWm%3DQEUZPpoXJhgM0Z_0kUhpAng%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
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