Tagged Questions

Optical Character Recognition is mechanical or electronic translation of images of handwritten, typewritten or printed text into text data (a sequence of codes used to represent characters in the computer).

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1answer
39 views

Using neural networks for rotation invariant OCR

I have video with text which can be rotated in any direction. If I trained a neural network on images of each letter at all possible degrees of rotation, would it be possible to classify the ...
-1
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1answer
41 views

what are best features [closed]

I am doing OCR for Kannada and English. What are the best features in image? Please also tell me some tools to perform OCR before implementing it as code (like Rapiedminer for machine learning).
4
votes
2answers
2k views

Licence plate detection with different backgrounds

I just studied the Algorithm of ANPR (Automatic Number Plate Recognition) from the chp 5 of book Packtpub.Mastering.OpenCV.with.Practical.Computer.Vision.Projects in which they detect the vehicle ...
1
vote
1answer
61 views

Match (OCR?) a digital image of a product label to similar

Excuse my ignorance... Given a digital image of a label I'd like to Requirement: Match it to the closest pre-existing image in a datastore Optional: OCR it, if possible (only necessary if step 1 ...
2
votes
1answer
159 views

Smoothing “font characters” outlines in bitmap image

Adobe Acrobat has this as a feature called ClearScan. While doing OCR it allows image enhancement, by smoothing irregularities on font outlines. For example, this source: turns to this: Are ...
3
votes
1answer
138 views

Recognizing hand-written archaeological signs

I have 75 images of handwritten signs from which I extracted 7 Hu moments and solidity features. How can I find similarities among them to train a classifier and predict the value? I thought SVM was a ...
2
votes
1answer
631 views

What is the algorithm behind OCR?

I'm curious about the algorithm and basic principles behind Optical Character Recognition. Can anyone explain: The most basic OCR algorithm that can be fairly easily implemented from scratch? Or ...
4
votes
1answer
877 views

Nutrition facts label OCR

My team is working on a program that can read nutrition facts labels using OCR, much like NutriScanner (though by its reviews it doesn't seem like it works particularly well). I've seen other ...
8
votes
1answer
277 views

Filtering kinda “half-toned” image for OCR processing

I have a scanned PDF material to which I want to add hidden text layer, so I could index the document. I used ghostscript black and white tiff output device (tiffg4) to extract pages as tiff images, ...
5
votes
1answer
3k views

Text recognition for Android app

I´d like to use some OCR algorithm (Image to Text) into an Android app (Java). I have previously used several algorithms but for a PC (Matlab) app. Which library or algorithm should I use? ...