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Ask HN: Recommended OCR?
I'm OCRing a bunch of TIFF files with tesseract, and while it works to some degree, it's nowhere near as accurate as I'd like it to be. Perhaps I'm doing something wrong and I could tune it to my liking, but I can't find too many resources on tesseract. Am I missing something?
Any other recommendations for OCRs? Ideally it would be free, but I'm willing to pay if it's not too pricey.
I've been trying out the trial version of FineReader, and it seems to work pretty well, so I may go with that.
Any help is greatly appreciated.
- hebz0rl 16y agowhat about gocr? its opensource see http://jocr.sourceforge.net/ http://jocr.sourceforge.net/
- hijimayor 16y agotesseract is way better than gocr, and is also open source
- MaxGabriel 16y agoI've had really great success with finereader. I tried out every free OCR tool I could find and after poor results went for finereader. Spend some time on their website so you get the right product, they have multiple prices for the same products, too. I got the latest Finereader (after a coupon code I found on google) for between 130-150. (I'm mostly scanning books)
- ig1 16y agoFinereader is what Project Gutenberg has been using for the last decade or so.
- hijimayor 16y agoOne thing that improves Tesseract's performance dramatically is giving it grayscale tif images. Do mogrify -type Grayscale *.tif and run them through tesseract to see the difference. No idea why no one mentions this in the documentation.
- mgedmin 16y agoI've found that Tesseract's accuracy was much improved when I converted my grayscale images to bitmaps with GIMP's Threshold tool. (Those pictures were not-very-hight quality snaps of a few pages of a book taken with a 3.2 Mpix digital camera.)
- hijimayor 16y agoTesseract really wasn't made for camera pics, but it could use some help with the thresholding :)
- usermac 16y agoFujitsu ScanSnap