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Tika doesn’t do OCR, it only extracts text content from binary files. For an image it’ll only give you metadata and such. A better comparison would be against
by milesokeefe 8y ago
Tika doesn’t do OCR, it only extracts text content from binary files. For an image it’ll only give you metadata and such.
A better comparison would be against Tesseract or ABBYY FineReader.
EDIT: I wasn't aware that Tika now embeds Tesseract.[1] Still, it's a simple wrapper so the real comparison is against Tesseract.
[1] https://wiki.apache.org/tika/TikaOCR https://wiki.apache.org/tika/TikaOCR
- dunham 8y agoFor the use-case of search, you can "cheat" and provide multiple answers for each word that you find in the image. Evernote does this. (It has 2-3 options for each word in its ocr results.) I don't know if tesseract supports this mode of operation, nor if Dropbox is doing this.
- zawerf 8y agoI think they already tried commercial off the shelf OCR software (which they didn't name but I would assume it's ABBYY) before they decided to build their own solution: https://blogs.dropbox.com/tech/2017/04/creating-a-modern-ocr-pipeline-using-computer-vision-and-deep-learning/ https://blogs.dropbox.com/tech/2017/04/creating-a-modern-ocr...
- mehrdadn 8y agoABBYY hasn't been all that amazing in my experience. I compared it with Neat Scanner software a few months ago and the latter seemed to do a noticeably better job.