Questions relating to Optical Character Recognition (ocr)

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0answers
13 views

Why ocrodjvu's engine not found?

I run unsuccessfully in Ubuntu 14.04 LTS, trying to have better OCR of a DjVU document ocrodjvu --in-place document.djvu but get ocrodjvu: error: OCR engine (tesseract) was not found. I found out ...
-1
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1answer
21 views

Ocr can't recognize a specific image [closed]

I am seeking to make these images , (8,0) recognized by an Ocr I am using tesseract but i don't mind if another Ocr make it
0
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0answers
19 views

Do Handheld OCR Scanners (C-Pens) Work in Ubuntu 15.10?

Do Handheld OCR Scanners, otherwise known as C-Pens, work in Ubuntu?
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1answer
46 views

OCR-Software sought

What is recommended commercially free usable OCR-Software? It should be accessible via Python or a Python library. And it should run under Linux. The one I came across myself is tesseract. Are there ...
0
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1answer
169 views

OCRopus installing problem

I'm working on a project and need to use OCRopus, I tried to install it on windows but failed, so I moved to Ubuntu. I'm not a nerdy when it comes to Ubuntu, so I'm stuck now. I have installed python ...
0
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0answers
101 views

How to install InftyReader on Linux?

I would like to install a free version of InftyReader on Linux. If there are alternatives for Linux, it would be fine too. My major problem: I would like to convert a PDF or Image to LaTeX-Code ...
1
vote
1answer
116 views

ocrfeeder doesn't detect anything

When I try to detect text on my jpeg, it shows correctly all areas where it suspects text and images, but when I export it to ODT it only creates an odt woth empty text- and imageframes. Do I have to ...
0
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1answer
71 views

Use xsane as OCR without scanner

When I start xsane, It exits with the message no decvice accessible. But I would like to use it just as OCR tool. How can I suppress the device search?
0
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0answers
122 views

unicharset_extractor command throwing segmentation fault(core dumped) error?

I am trying to train the tesseract engine with arial font while following this documentation. when i am running unicharset_extractor command it is givving me the segmentation fault(core dumped) ...
0
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0answers
64 views

How to edit your own OCR fonts?

After reading the gocr document, i realised that an OCR proccess for recognizing a character is to compare the character (detected in the image) with the characters fonts on the database engine. My ...
0
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2answers
38 views

OCR for TAN list (online banking)

I have a TAN list on paper for online banking that looks like this: 001 123456 015 123456 029 123456 043 123456 ... 002 123456 ... ... I scaned it and now I want to use OCR to get the text. ...
2
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0answers
498 views

Tesseract and hOcr on Ubuntu 14.04

I've been having a problem with tesseract and hocr2pdf output since upgrading from 13.10 to 14.04. Tesseract now creates an .hocr file rather than an .html file for ocr output, but this is not ...
8
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2answers
729 views

How to turn a pdf into a text searchable pdf?

I have a number of scanned documents in pdf and I want to be able to search them. How can I do that? Essentially I have to OCR the pdf and then blend the extracted text back into a new pdf. I have ...
0
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1answer
451 views

Is it a good idea to try to compile tesseract 3.02 on ubuntu 14.04?

I have ubuntu 14.04 on my notebook, and i am going to work with tesseract by compiling it for some computer science related research. Am i on a good path? Svn of tesseract provides only 3.02 as i ...
2
votes
2answers
1k views

Why are no OCR engines working in Gscan2pdf after upgrading to 14.04?

I recently upgraded to Ubuntu 14.04, but the OCR in gscan2pdf stopped working. I am using the latest gscan2pdf (1.2.4) with both Tesseract and Cuneiform available. When loading pdf documents in ...
2
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1answer
154 views

scan receipts with a GUI

I'm new to ubuntu, and I'm trying to find an application to scan my receipts in order to create an expense report. Is there any software available? Any help is greatly appreciated. thanks
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2answers
613 views

Install GimageReader in Kubuntu - my last step of getting rid of Windows

Hope all are doing well. I have been Windows-free for almost two weeks now. And I am not even using Wine, to use Windows software. Initially I installed Ubuntu, then I shifted to Kubuntu [I like the ...
2
votes
1answer
581 views

Help with Canon CanoScan LiDE scanned PDF Documents

I have just started working with Ubuntu for the last 10 days, with the intention to stop using Windows permanently. So far it has been awesome. I have replaced almost all my Microsoft applications ...
1
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1answer
205 views

Tesseract OCR Engine on ubuntu how to

I've installed tesseract-ocr. I was looking at the manual, but i can't see an option that i can define an image bounds (X,Y,W,H) Can someone help about it , or am asking in a wrong place ?
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2answers
196 views

Is there a good OCR-readable font

As part of my backups, I would like to be able to print and later re-scan a Base64-encoded copy of my private key. Unfortunately, neither gocr nor tesseract seems to be able to properly read any font ...
2
votes
1answer
276 views

ASCII art generator with OCR

What program can turn an image into ASCII-art, but also replace any text with the actual text with OCR. For example, for converting a comic to ASCII art.
1
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1answer
896 views

How to improve tesseract performance?

By all accounts, tesseract is superb. However, my results are dismal. I need to convert (digital, as opposed to from a book) text that I only have as a png. For instance: 2 3 academics 1 1711 2 ...
2
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0answers
402 views

Alternative to Paperwork

I am looking for an alternative to the program Paperwork as it is rather complicated to install under Ubuntu. I am specifically interested in finding a way to read dates, prices and other details from ...
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1answer
78 views

pdfsandwich - how to not change page colour

I am using pdfsandwich but it changes the colour of the pages from colour to black and white. Since I have a document with many coloured pictures how can I avoid it?
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1answer
946 views

Cannot Scan from Gscan2PDF on 13.10 or OCR with Tesseract

I am having a little bit of trouble with one of my favourite pieces of open source software. I had installed Gscan2PDF (1.0.4) from the Software Centre on my 13.10 64bit machine (clean install from ...
1
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1answer
157 views

TV channel Identification using Linux C Programming

I need to develop an application which will identify the channel name which is currently running in the Television. I am using Easy CaP Video capturing device to take the video in from the dth set top ...
2
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1answer
7k views

Optical character recognition for LibreOffice

I have a paper document. There are more pages containing a table with 3 columns (current number, name and a grade). I scanned it and got 16 jpeg documents. Each jpeg is a scanned page. Now, I need ...
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2answers
2k views

“sh: 1: cannot open /tmp/pdfsandwich4e375e.html: No such file” when using pdfsandwitch [closed]

I tried to add a textlayer to some pdf files in order to make them searchable. This technique is explained in the german Ubuntu wiki: http://wiki.ubuntuusers.de/pdfsandwich . After installing ...
3
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2answers
4k views

Abbyy fine reader like application for Ubuntu 13.04

I have a lot of images and what I want to do is to scan those images and get output in ms word file that can be edited later. For Windows, I have Abbyy fine reader. But I don't want to go back to ...
2
votes
1answer
880 views

Convertion of tiff image in Python script - OCR using tesseract

I want to convert a tiff image file to text document. My code perfectly as I expected to convert tiff images with usual font but its not working for french script font . My tiff image file contains ...
13
votes
1answer
3k views

How can instantaneously extract text from a screen area using OCR tools?

In Ubuntu 12.10, if I type gnome-screenshot -a | tesseract output it returns: ** Message: Unable to use GNOME Shell's builtin screenshot interface, resorting to fallback X11. How can I select a ...
1
vote
1answer
2k views

How to wildcard tesseract?

I want tesseract to convert all the files of a folder. I do not want to merge the files in any way as I am having trouble with programs like hocr2pdf and pdfbeads merging more than one file at a time. ...
2
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2answers
474 views

pdfbeads will only output a single page

Following the instructions from this page I take a djvu document, check it for any sign of corruption by opening it in djvulibre and it checks out fine. Copy it to my testing folder and rename it ...
0
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3answers
2k views

batch tesseract conversion

I am trying to OCR a book using tesseract however I do not want to type each individual page as it is a book near 1000 pages. How would I accomplish this I tried tesseract *.tif * which gives me this ...
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2answers
1k views

converting djvu to pdf trouble with this OCR preserving code

I want to convert djvu to pdf while preserving OCR. This page describes how to do so, but I am getting a blank html file. In /home/steven/Documents/djvu2pdf/1/, djvu2hocr -p 1 Intro.djvu gives me: ...
5
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1answer
2k views

How do I produce a multi-page sandwich pdf with hocr2pdf?

I used tesseract to produce the special html to use with hocr2pdf starting from a muti-page tif. I tried using hoc2pdf to produce a "sandwich pdf" (image + hidden text layer). Hocr2pdf produces a ...
6
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1answer
223 views

document management private users

i am searching for a document management system that supports: can bulk scan documents automatic OCR of scanned documents data storage on my local HD / external server of my choice automatic ...
10
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5answers
46k views

How do I edit text in a scanned .jpeg?

I need to upload a scanned image as a PDF document. After scanning the document, I have a .jpeg with small text that I want to edit before converting to PDF for the upload. I have never done this ...
12
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4answers
7k views

Adding OCR info to a PDF

I have a good quality scan of a document; such scan is in pdf format. How can I add ocr information to the pdf, so that it becomes searchable? By searchable I mean that the goal is that when viewing ...
0
votes
2answers
852 views

Error in installing GOCR

When I tried to install GOCR on Ubuntu Linux 11.10 I got the following readout in the terminal ??????????:~$ cd gocr-0.48; make install ./configure checking for gcc... gcc checking for C compiler ...
15
votes
2answers
8k views

How can I extract text from images?

How can I extract text from images? I am not talking about scanned files, but garden variety images, such as when you take a high-def picture of a blackboard at class, and it is nicely handwritten; ...
1
vote
1answer
2k views

Tesseract and OCRopus

I was wondering what relations are between Tesseract and OCRopus? Is OCRopus a wrapper of Tesseract? Or are they now developing independently? What are some advantages of one over the other? ...
3
votes
0answers
631 views

How to add OCRed text to original pdf in gscan2pdf? [closed]

I am new to gscan2pdf 0.9.31, and just used it to OCR a scanned pdf. After saving the pdf, the OCRed text is stored on the top left corner. However I wish each OCRed character to be added to exactly ...
5
votes
1answer
7k views

How can I specify the language to be used by Tesseract when using OCRFeeder

I'm using the OCR-utility of OCRFeeder. OCRFeeder is using the tesseract-engine. I have installed the several language-packs needed for tesseract. How can I set the language such that tesseract will ...
42
votes
5answers
41k views

What's the best, simplest OCR solution?

I'd like to scan a good amount of papers I have lying around, with the least possible hassle. I would like to convert them to images using Simple Scan, then convert them to text using OCR. Is there a ...