OpenCV - Extract Regions From An Image

asked 2013-12-19 05:36:20 -0600

Damo gravatar image

updated 2013-12-19 06:11:33 -0600

Hi

I am looking through the various OpenCV algorithms to try and find a solution to a problem I am currently having. I am trying to extract regions of interest from an image of a newspaper cover. For example, in the image below, I would like to categorise the heading "Everything but equality", the image below it and the text below that as a region and extract it from the image.

Can anyone offer any advice on what techniques I should be investigating in order to solve this image description

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So, you need to identify main headlines and the picture that go with them in different newspaper pages? It is an interesting problem, mainly due to its high complexity.

Pedro Batista gravatar imagePedro Batista ( 2013-12-19 07:52:55 -0600 )edit

Yes its complex alright and I understand that no one solution would work. Would you recommend any sort of pattern or template matching?

Damo gravatar imageDamo ( 2013-12-19 08:18:08 -0600 )edit
1

Well, just from the top of my head, I would start by trying an OCR algorithm (which is basically does template matching). These algorithms can identify characters such as letters and numbers. Then you'd be able to identify head lines by size of font. As for image detection, I'd start by trying color segmentation methods. Either way, you've got a long way to go

Pedro Batista gravatar imagePedro Batista ( 2013-12-19 08:25:23 -0600 )edit
1

@Damo See this answer might be helpful...

Haris gravatar imageHaris ( 2013-12-19 08:34:04 -0600 )edit