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I would like to know if there is a library capable of processing a scanned image of a reply form (similar to the one used in ENEM).
I have found a software that is capable of doing this, which is the Kaptureall, but I would like to know if there is any open source solution that does something similar.
If it doesn’t exist, how best to do it, what libraries would you recommend?
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The best way to do it is to go after an OCR library (Optical Character Recognition). Here’s a great article about this.
There is also the Tesseract, OCR mechanism that is not native to . NET, but which there is an envelope for the . NET.
Or, yet, you can try a paid solution.
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There is the Opencv library, which is open source and in C++ (if I’m not mistaken), but I’ve never used, only heard of!
Here’s a tutorial with C# I found on google Opencv
See if it helps you xD
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Hello Charles. This site is not a forum, and the questions need to be more objective under a specific issue or something that can be answered with a single answer. If you have not read it yet, please read [help] and [Ask]. Anyway, maybe you can build something on your own (I don’t know if OCR helps you, because your goal is not to recognize characters but to identify patterns). A famous open source library is the Opencv. Limiarization search (which is the process of separating the response marks from the background).
– Luiz Vieira
Okay, I’ll look it up, thanks for the help
– Charles Stein