How can I remove the background of a particular image?

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char S 2014-6-20

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评论： char S 2014-6-23

I want to remove the background of the corresponding MRI image. Please suggest the coding steps.

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Image Analyst 2014-6-20

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Find the background and save it into a binary image called mask. Then define what "remove" means, keeping in mind that an image has to be rectangular - you can't have oval images. If you just want to set the background to some particular value, like 0, then:

grayImage(mask) = theValueYouWant;