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0
votes
1answer
231 views

Image (having text-and-numbers) to text-file matching [:alnum:] nicely with some Unix -tool?

Suppose a photograph with text and numbers. I want to manage it in my editor with tools such as grep, standard text-processing things such as Vim's block-highlighting and also more advanced things ...
3
votes
1answer
418 views

Linux equivalent of GraphClick?

Is there a piece of Linux software that does what GraphClick does in Mac OS X? That is, is there a Linux software that "is a graph digitizer software which allows to automatically retrieve the ...
1
vote
0answers
40 views

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 ...
3
votes
2answers
204 views

Create custom wordlist

I want to create a custom list of (scientific) words for purposes like spell checking and OCR based on my collection of scientific papers in pdf format. Using pdftotext I can easily create a text file ...
2
votes
1answer
284 views

How to find all images containing any text?

I got a lot of images, and I need to find, which of them contain any text in English (to delete them). Is it possible to do it automatically?
11
votes
4answers
1k views

OCR on Linux systems

I have always found OCR technology to be behind on open source systems. I've also watched the Ocropus project since its infancy. I've tried what I've heard is the best OCR engine available for ...
3
votes
1answer
121 views

De-obfuscate a picture with statistical information?

I need to get this kind of information into numbers, how? Perhaps related http://dsp.stackexchange.com/questions/1054/how-do-i-recover-the-signal-from-an-ecg-image ...
10
votes
3answers
3k views

Is there some sort of PDF to text -converter?

I need PDF files to text so I can search over them in bulk from commandline. Is there some converter for Ubuntu, OBSD or similar distro? Perhaps related post, OCR with ubuntu here.
4
votes
3answers
246 views

sed one-liner to replace word-medial capitals

I used OCR to turn some scans into plaintext, but unfortunately the letters 'fi' which are commonly joined in some fonts, got read in as capital W's. Now I need to replace all the W's with 'fi', and ...
0
votes
1answer
54 views

Writing to picture which is scanned document

I have a scanned contract and I need to change only a few names and dates in the contract. It's easy to scan the document but impossible to ocr the document and open in *.doc format. Is there an ...