Get the position of specifed pixels

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nghia nguyen
nghia nguyen el 19 de Abr. de 2011
Hi! I have a problem.I have I picture with a rectangle in it.I can draw the boundary (edge detection) of that rectangle but how can I get the position of one of its corners because I want to use that point as the origin of a coordinate system.Please tell me how can I do that and thanks a lot.

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Walter Roberson
Walter Roberson el 19 de Abr. de 2011
convert the image to black and white, "label" the image, and use regionprops() to find the bounding box of the object.

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