Good luck, and please let us know what you come up with. ![]() ![]() If these are the only scenarios, white-on-black is always solid background, and black-on-color is always seven-segment-display, then you're done. Destiny Data Systems Seven Segment Display is a JavaScript widget emulating the LED or LCD displays commonly used on electrical and electronic equipment to. If not, I suspect you could look at image color histograms to at least figure out whether your text is white-on-black or black-on-color. and I want to find these image on the target image. I have the 09 7 segment displayed number image, and each number with. If you have metadata telling you what sort of display you're dealing with, great. I am trying to recognize the number on the 7 segment display. The hard part then becomes knowing which preprocessing task to do. An easy first pass might be to do a small-radius gaussian blur, threshold at a pretty low value (you're trying to keep only black, so 15% seems right), and then invert the image. Using some image manipulation tool (I happen to like imagemagick), you need to make the images more to tesseract's satisfaction. It is not very smart about how to do this. Standard license (Free with trial) Unlimited web, social, email, mobile views. If you give it something that isn't that, it will do its best to convert it to that format. Tesseract would really prefer its images to all be white-on-black text in bitmap format. ![]() This seems like an image preprocessing task.
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