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Image cropping help (Crop image at boundary)

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Shawn Castelino
Shawn Castelino 2016-5-26
回答： John BG 2016-5-26
Hello!
I need some help cropping certain shapes individually out of a binary image. Below is an example image.
.
I know an easy way of cropping automatically would be using using regionprops() ('BoundingBox') and using those coordinates and lengths with imcrop(). But that gives me the white part inside a bounding box still surrounded by black.
Is there a way of cropping only the white out, say, using the boundary coordinates found with bwboundaries, or conncomps? Is it possible to crop out the object at the boundary coordinates?
Any help is greatly appreciated, thank you!

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John BG
John BG 2016-5-26
In the file exchange there are these 2 solutions: 1.- http://uk.mathworks.com/matlabcentral/fileexchange/17460-cropping-an-image-with-draggable-rectangle?s_tid=srchtitle
2.- http://uk.mathworks.com/matlabcentral/fileexchange/21178-cropping-an-image-with-resizable-and-draggable-rectangle?s_tid=srchtitle
3.- and from Image Analyst, an accepted answer:
http://uk.mathworks.com/matlabcentral/answers/215142-how-to-crop-image?s_tid=srchtitle
croppedImage = imcrop(yourImage, [1 1 200 300]);
where [xmin ymin width height] is [xmin ymin width height]
If you find this answer of any help solving your question,
please click on the thumbs-up vote link, or mark is accepted answer
thanks in advance
John
jgb2012@sky.com

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