Border Noise Removal

[Everest]

Hello I am working on a project dealing with document image. What I want to handle now is to remove the border noise from a whole scanned colored image. 'Cause I didn't get a document about this project, could anyone provide me with a explanation about how to apply a  method to get the expected text area from a original image or binarized image? Thank you very much!

[Sachin Garg]

A very good intro is here:

http://www.danvk.org/2015/01/07/finding-blocks-of-text-in-an-image-using-python-opencv-and-numpy.html

However, in my case the "-n" option to "ocropus-nlbin" (as in
http://www.danvk.org/2015/01/09/extracting-text-from-an-image-using-ocropus.html)
did not work.

I have a similar problem: vertical text around the borders that needs to
be ignored ...

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Sachin Garg <sga...@masonlive.gmu.edu>
Doctoral Student
School of Policy, Government & Intl. Affairs
George Mason University
3351 Fairfax Drive MS3B1, Arlington, VA 22201, USA
Phone: +1-703-993-3787 Cell: +1-571-222-3216

[Everest]

Thank you very much, Sachin! I will try that, what I want to do is to dewarp the text in pic like this. Currently I got no good result with the border noise, since my algorithm isn't sensitive enough to it. Do you think I could either physically detect and cut off the border noise or use a filter pipe to get ride of this edge noise content. 

and that's what I got from you ocrpus-nlbin -n function. 

Any suggestion would be appreciated. Thank you very much!

 

在 2015年6月16日星期二 UTC-4下午6:03:00，Sachin Garg写道：

[Zura Isakadze]

Hi Everest, I ended up using ScanTailor for this job, plus I noticed that in my case without using any options, ScanTailor performs better binarization. 

[Everest]

Hi Zura, I got a lot of pics for this process, and I want it to be automatic. Do you know there is some software that can handle this? Thank you very much!

在 2015年6月20日星期六 UTC-4上午9:30:22，Zura Isakadze写道：