how i can put a rectangular around forground ?

2015 12 24
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更新时间：2015 12 30
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in regionprob, bounding box put a rectangular a round each object but i need just one rectangular around my forground which is in the center of my image .i mean i need a perim around my object that have rectangular form.

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Walter Roberson
Walter Roberson 2015-12-24
How can you determine which is foreground and which is background?
mari ahmad
mari ahmad 2015-12-25
编辑：Image Analyst 2015-12-26
It's clear. I have an image that consists of 2 objects. If I use regionnprops boundingbox the result is a lot of rectangles around each of the two objects. In fact i need to extract the area of jut 2 object and put a rectangle around it.

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Image Analyst
Image Analyst 2015-12-26

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Call bwconvhull() before you call bwlabel() or bwconncomp(). That will join the two blobs and create just one giant blob, which, of course, will have just one bounding box.
binaryImage = bwconvhull(binaryImage);
labeledImage = bwlabel(binaryImage);
measurements = regionprops(labeledImage, 'BoundingBox');
boundingBox = measurements.BoundingBox;

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