How to remove this known background for better ocr?

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davidng
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Joined: 2015-05-08T18:16:41-07:00
Authentication code: 6789

How to remove this known background for better ocr?

Post by davidng »

original image
Image

known background
Image

question:
how to separate them without the hole inside the character for better ocr? (can use multiple command)

convert img0.png bg.png -compose ChangeMask -composite img1.png
Image
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fmw42
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Joined: 2007-07-02T17:14:51-07:00
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Location: Sunnyvale, California, USA

Re: How to remove this known background for better ocr?

Post by fmw42 »

Are you are trying to break a captcha? Most people here will not help you do that.
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davidng
Posts: 2
Joined: 2015-05-08T18:16:41-07:00
Authentication code: 6789

Re: How to remove this known background for better ocr?

Post by davidng »

well this is more like a imagemagick question, then a captcha question.
don't you find this question challenging?
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