Comments on: Basic OCR in OpenCV

By: toto

toto — Wed, 22 Feb 2012 10:21:50 +0000

Thank you very much for sharing this source code. Your code give me more information about OCR description

By: Anonymous

Anonymous — Wed, 22 Feb 2012 09:51:41 +0000

its an awesome tutorual.
i’ld like to know if i want to extract the number
i mean i have an IlpImage and i want to get char from it so which function should i use?

By: damiles

damiles — Wed, 14 Dec 2011 08:33:19 +0000

Yes, you have reason, but in my code works correct because my images are same size for with and height.

By: damiles

damiles — Wed, 14 Dec 2011 08:32:37 +0000

What is the log of VC++

By: khaled

khaled — Wed, 14 Dec 2011 03:57:38 +0000

i can’t compile the project with VC++ ?? please help mee !!

By: David Fernandes

David Fernandes — Tue, 13 Dec 2011 01:11:31 +0000

Great work damiles, thank you

I have two questions about the code:

In findX shouldn’t we do:
CvScalar maxVal=cvRealScalar(imgSrc->height * 255);
instead of
CvScalar maxVal=cvRealScalar(imgSrc->width * 255);

and in findBB
aux=cvRect(xmin, ymin, xmax-xmin+1, ymax-ymin+1);
instead of
aux=cvRect(xmin, ymin, xmax-xmin, ymax-ymin);

Thank you again for this great article
David

By: Mohammed

Mohammed — Wed, 30 Nov 2011 11:38:26 +0000

thanks for your response.

Can i develop for the real-time application !!! my objectif is to use the GPU but on my MacBook i have ATI card and not the NVIDIA !! so i don’t know if it’s possible to use GPU with OpenCV?

Thanks.

By: damiles

damiles — Wed, 30 Nov 2011 11:16:28 +0000

Hi, I don’t have now any svm tutorial

And you can use OpenCV in your mac, i use mac and i never have problems to compile and use opencv, i only recomend you use cmake for script compilation.

By: Mohammed

Mohammed — Wed, 30 Nov 2011 07:52:37 +0000

Hi, thanks you for this good blog. Have you a good tutoriel for SVM classifier ?

another question : i hope to develop on my MacBook laptop but i don’t know if i can found all the necessary for using OpenCV ?

thanks.

By: damiles

damiles — Mon, 28 Nov 2011 16:58:56 +0000

Hi, this respond is dificult, sure you have better improvement, but you go to recive bad results when you change font or size.

It’s no easy improve a pattern recognition system, i sugest you create diferent dataset, diferent features for training and evaluate the result errors and select the best.