Is there any OCR SDK for c++ builder?

Question

I'd like to add character recognition functionality to my application that's why asking you what's the best available and affordable OCR SDK . I looked at ABBY FineReader Engine 10.0 but haven't got trial version yet as I requested from the official site!

I've downloaded Asprise OCR SDK but it's doesn't recognize Cyrillic symbols..

How to implement character recognition on my application ? By using what kind of libs, SDKs, APIs and so on..

Answer 1

There's Cunieform and Google's Tesseract OCR, both of which are free. Personally I've used Tesseract, the SDK was giving a lot of trouble so finally decided to simply call the command line interface of Tesseract with arguments from within my C program using the system() function.

Lots of people face difficulties with the Tesseract installation, so here's a short summary (version 2 works for me, insert appropriate version if necessary):

1. Download the following from the svn: tesseract-2.00.tar.gz, tesseract-2.00.exe6.tar.gz, tesseract-2.00.eng.tar.gz

2. Unzip tesseract-2.00.tar.gz to a folder

3. Unzip tesseract-2.00.exe6.tar.gz and move to where tesseract-2.00.tar.gz was unzipped. A few files will be replaced this way

4. Similarly unzip tesseract-2.00.eng.tar.gz and move to tesseract-2.00.tar.gz where tessdata folder will be replaced.

   After all this is done, open the tesseract.dsw workspace, select All Files and do "Rebuild All." This'll take a while with loads of warnings but hopefully no errors.

   The command using DOS shell is tesseract picture.tif textfile -l eng. So basically save your image as a TIFF file, run the command from within your program and then read in the OCR output strings from the text file.

Answer 2

I can recommend you Crystal OCR if you don't need to recognize a very complex documents, they sent me C++ Builder sample by request. IMHO, Tesseract is still buggy, though it's the best free OCR of course.

Answer 3

You can try KSAI-Toolkits. It has a completely ocr application, which include C++ API, OCR model, benchmark and test data. And it supports different platforms.