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Questions tagged [ocr]

Questions relating to optical character recognition (OCR) software.

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75 votes
12 answers
38k views

Free OCR software that makes a PDF searchable (with searchable text at the right place)

Is there any freeware OCR software (for Linux and/or Windows) that can take a PDF scanned document as input and output a Searchable PDF like Adobe Acrobat does? With searchable PDF I meant that the ...
Cornelius's user avatar
  • 4,758
28 votes
6 answers
3k views

Tool for optical character recognition (OCR)

Is there a tool that can recognise text in a scanned document (PNG, JPG) and convert it into a regular text file (DOC, TXT)? It should Work on Ubuntu and Mac OS X Be free Work with most common ...
Qwertie's user avatar
  • 1,127
20 votes
2 answers
12k views

Looking for OCR API on mobile platform

I'm looking for an OCR library that runs on Android, iOS & Windows Phone. My app scans the image to find certain information on it. For example, scan a parking ticket to get time information on ...
Ethan's user avatar
  • 301
19 votes
3 answers
10k views

Android app to convert handwritten math equations to LaTeX code

I found some programs to convert handwritten math equations into latex code such as: MyScript Mathpad (only iOS) InLage (only Windows) But I didn't find any app for android. Is there any app for ...
DerJFK's user avatar
  • 291
17 votes
2 answers
1k views

Create searchable PDF files using OCR from scanned PDFs in bulk

The goal is to automatically convert all scanned documents into searchable PDF files instead of just images. The scanned documents are automatically uploaded by the scanner to a share on a Linux ...
user avatar
15 votes
1 answer
4k views

Android Open Source Business Card Reader

What open source business card reader applications are available for Android? I would like to be able to snap a picture of the card or scan it and import it into my contacts/address book. I would ...
Ryan Gates's user avatar
14 votes
2 answers
2k views

Are there other products than Adobe's that support ClearScan or similiar?

Starting with Acrobat 9, Adobe engineers added a new flavor of OCR called ClearScan. The advantages of the ClearScan over Searchable Image OCR are both in size and clarity. The biggest innovation ...
Eduard Florinescu's user avatar
14 votes
2 answers
414 views

Document scanning software with OCR that takes advantage of multiple CPUs

At the moment I use the software that came with my CanoScan flatbed scanners. My major complaint about the bundled software: no possibility to define scan profiles, too slow (not capable of using ...
user291737's user avatar
13 votes
3 answers
19k views

Program to generate a CSV file from an image containing a table

I'm looking for a program that can generate a CSV file from a scanned image or PDF containing a table E.g. if the input is the ouput would be the corresponding CSV file: AIDS Behav, 9712133, ...
Franck Dernoncourt's user avatar
12 votes
1 answer
2k views

Handwriting to computer code

I have a nerve injury where handwriting is far better for me than typing. I would like to be able to hand-write computer code (in C++ or Python or something like that) and be able to convert the ...
William McCloskey's user avatar
11 votes
2 answers
1k views

OCR for PDF files on iPad

I am looking for an app to make the scanned PDF files on my iPad searchable. The problem is that there is a large number of apps which are supposed to do this, but they all have rather mixed ratings. ...
user avatar
10 votes
1 answer
11k views

OCR for sheet music

I have photos and scanned images of music notation (in JPG format, but I could create any other format as well, if needed). Now I need a program that examines the music on the picture generates a "...
minseong's user avatar
  • 227
10 votes
2 answers
2k views

Open source Hebrew OCR

Is there any good free Hebrew OCR for Linux? Hocr doesn't count, as it's off such poor quality. I send computer generated text (not scanned, just saved as a gif) through it and it can't pick up ...
ocr's user avatar
  • 101
10 votes
2 answers
602 views

Offline Android OCR receipt scanner

I have been looking for an Android receipt scanner that does NOT upload data to the providers servers. I'm looking for a solution that will process photos of receipts and use OCR to extract data ...
user avatar
9 votes
2 answers
2k views

Receipt OCR & Personal Finance Management app for Android?

Is there and app (preferably for Android or Linux) that would support receipt OCR, so I could just take photos of receipts after shopping? (preferably with option to collaborate with other people, ...
Grzegorz Wierzowiecki's user avatar
9 votes
2 answers
619 views

Self-hosted wiki with strong search (including OCR)

I'm looking for a wiki software that: Must have: Strong search capabilities (include search text on images) Paste images directly from clipboard (no need for intermediate file) Must not require ...
Fawix's user avatar
  • 186
8 votes
2 answers
9k views

PHP OCR library

Looking for a OCR Library to integrate into a PHP/JS/HTML5 Web Application. PHP is preferred however any language can be made to work via exec so if a non-PHP option is faster or high quality I'd like ...
Nick Dickinson-Wilde's user avatar
8 votes
2 answers
9k views

Program that can extract subtitles from hard-subbed videos?

I am looking for a program that can extract/create subtitles from a video that has been hard-subbed rather than a video that has been soft-subbed where it is rather quite easy to extract these ...
Izumi-reiLuLu's user avatar
8 votes
1 answer
134 views

Need program to help remove information from scanned documents

I have about 200 PDF scans that need to have information systematically removed. This information to remove includes a set of digits that may vary in length. The current plan is to print each ...
thequantumguy01's user avatar
8 votes
1 answer
156 views

OCR with GUI for correcting mistakes?

I've used SimpleOCR, which has a nice GUI for correcting mistakes. Unfortunately, it makes a lot of mistakes! (and suffers other bugs and limitations) On the other hand, Tesseract is more accurate ...
Hugh Allen's user avatar
7 votes
1 answer
93 views

OCR of vehicle registrations from blurred video footage

I have a large volume of video from cameras set up to record vehicles registrations. Unfortunately it was necessary to carry out much of the observation during hours of darkness and a large proportion ...
Tim Harper's user avatar
7 votes
4 answers
225 views

Fast online OCR tool

One of my co-workers just posted a draft of something he's writing... As an image! This is annoying. I can't do my usual "keep track of what I'm reading by selecting bits of text" thing. How can I ...
Bullwinkle's user avatar
6 votes
3 answers
17k views

Most accurate open-source OCR for Japanese?

From your experience, what is the most accurate open-source Optical Character Recognition (OCR) library/software to read Japanese text? I just tried nhocr, its mistake rate is over 2% even on an ...
Nicolas Raoul's user avatar
  • 19.5k
6 votes
2 answers
2k views

OCR+translate software for older printed script text found in 1700s - 1800s texts

I am looking for an OCR software that does OK on older printed script text found in 1700s - 1800s texts and after recognition can store the original text and optionally translate it. Currently I've ...
CRSouser's user avatar
  • 359
6 votes
2 answers
874 views

Scan a receipt and recognize text/numeric data on it

I'm looking for a software that can scan a receipt to retrieve data of total price, product's name and price, receipt date and receipt number. Some important criteria: The software can be created as ...
HelloWorld1's user avatar
6 votes
0 answers
102 views

Business card storage/search for Android, works offline

I need to store business cards and find them later by search. Requirements: Take picture (sometimes two-sides) Save picture at appropriate resolution/compression (kilobytes rather than megabytes) ...
Nicolas Raoul's user avatar
  • 19.5k
6 votes
0 answers
195 views

Program to generate a LaTeX table from an image containing a table

I'm looking for a program that can: generate a LaTeX table from a scanned page containing a table E.g. if the input is the ouput would be the corresponding LaTeX code: \begin{tabular}{|r|l|} \...
Franck Dernoncourt's user avatar
6 votes
1 answer
477 views

Software to convert pictures of lectures from a blackboard to text

Most of my subjects allows taking a picture of our lecture from a blackboard, because of this I took advantage of it and take a picture of all the lectures that we have. Yesterday my professor said ...
Cary Bondoc's user avatar
5 votes
1 answer
183 views

Free OCR for youtube and screen

I'm looking for a downloadable freeware (gratis) that works similarly to Windows Snipping Tool. You create a rectangle around the required text and the software transforms it into regular text. If it ...
Avi's user avatar
  • 217
5 votes
4 answers
7k views

Software to batch OCR multiple image files to multiple text files using Tesseract?

I am currently using tesseract to OCR some jpeg files to txt files (Ubuntu 16.04). Typically this is ~500 files in one directory. I know I can do this by making a text file with all the file names (...
user3169's user avatar
  • 208
5 votes
1 answer
78 views

Tool for indexing, processing and generally managing digitalized documents

I'm currently trying to switch from archiving and storing my documents in a physical form to a digitalized one. I've scanned all of my documents. The scan itself is stored as a 300dpi JPG image file. ...
user avatar
5 votes
2 answers
203 views

OCR tool which can recognize tables

I have a couple of PDFs which are scanned documents with lots of tables. Take the following image as an example: I would like to get the tables from the images. Desired output A HTML file with <...
Martin Thoma's user avatar
  • 2,579
5 votes
2 answers
4k views

Open Source OMR optical mark recognition solution

I work for an institution that has to process a very large number of multiple-choice answer forms on a regular basis. We have adopted a commercial solution that is very expensive, plus we've begun ...
Simon Kuang's user avatar
5 votes
2 answers
210 views

Linux desktop search tool that OCRs PDF/TIFF files

I want a Linux GUI application in which I can search my home folder for all documents that contain a particular word/sentence. Obviously, it must work with text files. It must also work with MS ...
Nicolas Raoul's user avatar
  • 19.5k
5 votes
1 answer
101 views

Free, Blazing Speed OCR Software for integration with programs

I need to do optical character recognition in given places on a certain window in order to make an add-on for that application. The application is a C family game made with HGE compiled to executable. ...
Menasheh's user avatar
  • 261
5 votes
1 answer
232 views

High-accuracy digit OCR from a mobile screen shot

Question Is there an OCR solution that would run natively on a recent iPhone with better accuracy than Tesseract? It need only recognize enough to recover dollar amounts. Objective To scrape a ...
Fritz Anderson's user avatar
5 votes
0 answers
110 views

iOS app to scan and recognize receipts

We have an older neat receipts scanner that is starting to fail. One of the problems I've had with Neat Receipts is that the software isn't magical enough. Seems to me that you should be able to ...
Sherwood Botsford's user avatar
5 votes
0 answers
171 views

PDF to DjVu converter that keeps the OCR layer

I need a quality PDF to DjVu converter that keeps the OCR layer, and that runs on Windows/linux.
Eduard Florinescu's user avatar
4 votes
2 answers
2k views

PDF reader with OCR [duplicate]

Is there a PDF reader where I can select unselectable text to copy it? I use the FireShot plugin/extension for page capturing in PDF. Unfortunately, it generates the PDF as "image", so no way to ...
Asme Just's user avatar
  • 306
4 votes
2 answers
3k views

Python & PDF parsing: any modern, powerful, well-maintained open-source libraries out there?

I'm looking for well-maintained and well-documented powerful PDF parsing libraries for Python (mainly to extract and parse data from various types of PDFs with different/unpredictable structures, ...
Jean Monet's user avatar
4 votes
2 answers
2k views

Java OCR library

I'm looking for some open optical character recognition (OCR) raw libraries that I can use to create a Java application that compares them. Anywhere I search I find just applications to OCR.
noscatheme's user avatar
4 votes
1 answer
232 views

Text recognition (OCR) for screenshots

I find text recognition (OCR) has gotten quite well for scanned papers. Such software needs to deal with tilting, noise, dust and dirt, but the high resolution of the scans (150 dpi or more) seems to ...
Thomas Weller's user avatar
4 votes
1 answer
1k views

Tool to search text or content inside images in Windows 10

I had seen this answer. Agent Ransack is used to search inside the files. Such as pdf, txt, doc and etc. But I have many images with texts, I want to search the keywords inside the images too. There ...
test team's user avatar
  • 141
4 votes
2 answers
949 views

OCR software for Linux

I am looking for OCR software to digitalize scans. Some are prints, some are hand-written (like this). I want to have an easier time finding documents. So I want to generate one text file for each ...
Martin Thoma's user avatar
  • 2,579
4 votes
1 answer
291 views

OCR Resume Scanning Software

Is there a good software option to take physical resumes, at say a job fair, and scan them using OCR technology, which will then enter the scanned and readable resumes into an accompanied resume ...
rawberry's user avatar
4 votes
3 answers
6k views

PDF invoice to UBL/XML invoice convertor tool

I have allot of PDF files which I need to get into my accounting software. The accounting software supports UBL/XML invoices (sample). I am looking for a tool (software, script etc.) or service to ...
Akif's user avatar
  • 153
4 votes
0 answers
74 views

Software for Passport ID OCR

Can you recommend open source software for recognizing passport numbers in photographs? Or some other tool that can be used to solve this problem. We have data on which we can train software. ...
datafile4's user avatar
4 votes
0 answers
79 views

Better picture->ASCII art converter, that takes character shapes into account

Typical picture to AA converter just treats all output characters as pixels, considering only it's overall boldness. I want Image -> Ascii Art converter that uses OCR technologies and choses ...
Vi.'s user avatar
  • 1,035
4 votes
0 answers
95 views

Recommended software to scan and OCR documents and receipts on PC [duplicate]

I'm trying to keep my receipts and other important documents in digital form (as searchable PDFs). For many years I've been using an old copy of Acrobat CS2 which came with my iMac many moons ago and ...
user avatar
4 votes
0 answers
167 views

OCR software for recognizing product prices in print catalog

Is there any software (preferably backed by open-source components) for extracting textual product information from scanned retailer's product catalogs (i.e. bitmaps). And what is the name of the ...
Drux's user avatar
  • 161