How can I select a rectangular ROI from an image automatically?

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Sudipto Chaki 2018-10-3

评论： Sudipto Chaki 2018-10-3

I need to extract the rectangular area automatically. It would be appreciated if anybody help me in this regard.

Image Analyst 2018-10-3

Look at the links on the right side of this page if it's really the numbers that you want, instead of a box.

Sudipto Chaki 2018-10-3

I need the box with digits for my ROI image

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