this post was submitted on 03 Jun 2024
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I've actually just been working with OCR this week, trying to capture data off of the screen of a stupid proprietary Schneider device as that's the only way to get at it.
Long story short Tesseract stinks at this task.
The Chinese designed PaddleOCR seems significantly superior as it runs a more modern neural net and requires a lot less preprocessing. I would class it as more of a "full service AI" and not just a simple recognition system like Tesseract, it can correct for skew and do its own normalization and thresholding internally while Tesseract wants a perfect boolean raster fed to it.
Unfortunately, the barrier to entry is a lot higher due to trying to understand their text vomit website and the fact that it seems prone to random segfaulting.