Questions tagged [ocr]
OCR (Optical character recognition) is the conversion of an image of characters into a machine-readable encoded text. Use this tag to indicate questions involving this type of conversion or software that performs OCR. When possible indicate the software you use, source and target of the conversion.
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questions with no upvoted or accepted answers
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Replace Scanned Text with OCRed Text in PDF
I have a scanned book as a PDF.
When viewed in Evince, the book appears as it did when scanned, with old fashioned fonts that appear as they were scanned.
However, Evince recognises the letters as ...
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OCR high res images & combine OCR data later, after image compression?
I have a large number of .tif's coming out of ScanTailor. Is there a way that I might OCR those .tif's with tesseract, holding the OCR data separate from the images; then compress the images, and ...
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222
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MacOS-like OCR for Linux?
How can one setup the same ubiquitous OCR capabilities on Linux, in a manner similar to how one can copy text from any image in any software on MacOS and iOS?
I am using EndevourOS with Gnome DE.
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Is there software to manually OCR / teach OCR for handwriting (non-english) texts?
I had a problem that can't solve Tesseract/Abbyy Finereader etc - they can't recognize handwriting Russian as example.
So I search
OCR software for such things
or a way to manually OCR my pdfs (...
- 21
2
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264
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Convert scanned pdf to pdf with text and images
Is it possible to convert scanned pdf to an normal pdf (i.e. same pdf as if it was created from a document (with formatted text and images)) ?
I tried many OCR solutions online/offline
but they tend ...
2
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718
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Extract hardcoded subtitles
I wanted to know if there is a way to extract hardcoded subtitles via OCR, should I do some image processing after extracting the frames in order to use tesseract afterwards?
I have tried to extract ...
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2
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1
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699
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Where I can get Tesseract binaries for Debian 6 64bit?
I used apt-get to install Tesseract but it's not really working. Maybe I could just download binaries somewhere, put in a dir and use this way?
What's wrong with my Tesseract now:
tesseract --help
...
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2
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OCR that outputs probability data
I would like to convert printed books I own into audio by scanning them with OCR and then running the text through a TTS engine. These titles are not available as ebooks.
Since OCR can make small ...
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Can I transform colors of scanned pdf files and reduce the scan resolution to save memory keeping an existing text layer from OCR?
I have a pile of pdf files which have been scanned long ago and which are already searchable (i.e. they went through OCR).
However the light level and contrast settings were not optimal.
Is it ...
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395
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Using tesseract for character recongniton, result is not as expected (much worse). How to get better?
I wanted to add output of Linux boot to my question and decided to try to use optical character recognition thinking now in 2022 surely there should be decent open source options (have not tried OCR ...
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Where is ocrmypdf executable after Cygwin installation?
I followed this page to install OCRmyPDF on Cygwin. I did so from a non-administrator account, so the process ended up creating ~/.local/ for the required files. The following commands, however, do ...
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52
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What happened to Tesseract's "Math / equation detection module"?
I was able to get Tesseract to run via a Python script on my Windows machine to turn non-searchable PDFs into searchable ones. When downloading Tesseract onto windows, it asked me which languages I ...
- 101
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92
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Making badly scanned public domain books legible with OCR
I've obtained soft copies of some very old public domain books.
The illustrations are clear enough, but the text is somewhat blurry.
I've experimented with Tesseract OCR and it can recognize a ...
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How do I format texts that were processed by OCR?
Let's say that I want to connect all the paragraphs that are broken by the citations that start with (1), (2), (3), (4), (5). How would I express/automate this in bash? Keep in mind there are at most ...
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NormCap OCR via Awesome Window Manager
One of the coolest programs I've come across recently, is an Optical Character Recognition (OCR) program called NormCap. I have it tied to a hot key, and anytime I want to copy un-highlightable text ...
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