How do i implement OCR text recognition in unity?

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@Bunny83 @Eric5h5 @robertbu @Aurore @whydoidoit @fafase Hi, I am working in Text recognition. I need to recognize hand written texts or printed texts. I have tried vuforia for this and it worked but i don’t want to spend that much money on it. I have tried the following,

Tesseract
Google cloud vision API.

Tesseract - I can’t able to complete it. I have searched in google and am doing.

Google cloud vision - I am getting 403 forbidden error. I have to check this.

Does anyone help me on this? i have struggling in this for past 2 weeks. i desperately in need of your help.

Thanks.

Answer 1

Answer by $$anonymous$$ · Jun 09, 2017 at 02:29 PM

@MuraliVenkat I was able to get Tesseract to compile but as I remember there were also many dependent libraries like Leptonica and Libtiff that also had to be successfully compiled and linked as well. I found a version of these libraries somewhere on the net and added those to my project. My app successfully recognized text at about 300 dpi. You could create a Unity plugin that then calls this OCR function. There is a sample plugin project in the Unity Documentation.

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MuraliVenkat · Jul 26, 2017 at 07:23 AM 0

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@$$anonymous$$ : Thanks for your reply. Can you share any POC for it so that i will move forward to complete this one. I am stuck on it. Thank you.

$$anonymous$$ · Jul 26, 2017 at 09:10 AM 0

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@$$anonymous$$uraliVenkat Here is the line of code in my xCode project that interfaces with Tesseract to perform the OCR:

text = tess->TesseractRect((const unsigned char*)imageData, (int)([imageRep bitsPerPixel]/8), bytes_per_line, 0, 0, imageSize.width, imageSize.height);

Answer 2

Answer by G9host · Aug 12, 2017 at 07:10 AM

@digland2000 Can please post the link of the sample Plugin Project (which i couldn't find any where even documentations)..Thank you...

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$$anonymous$$ · Aug 12, 2017 at 07:29 AM 0

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@G9host Go to this page:

https://docs.unity3d.com/$$anonymous$$anual/PluginsForDesktop.html

Look under the section titled Examples and there is a small link you can click under the heading Simplest Plugin. It was a very basic project but helped a lot.

How do i implement OCR text recognition in unity?

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