How to detect a specific area on image

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Mohamed Elbeialy on 24 Apr 2020

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Answered: darova on 25 Apr 2020

How to detect the blue are only without white area and numbers?

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darova on 24 Apr 2020

Is this correct?

darova on 25 Apr 2020

You want to select it by color? Did you try imcrop?

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darova on 25 Apr 2020

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binarize image

remove small object like numers (bwareaopen)

use find to get indices of corners you want

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