what is mean by image gradient? what is mean by gradient filter ?

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kavya p
kavya p 2015-2-8
回答： Erik S. 2015-2-8
During fuzzy logic based edge detection we are considering image gradient I would like to know wat is image gradient

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回答（2 个）

Jan
Jan 2015-2-8
You will find the definitions, if you search in the internet. What about http://en.wikipedia.org/wiki/Image_gradient ?
Erik S.
Erik S. 2015-2-8
I agree with Mr Simon, look online. But to summarize image gradients are commonly used to detect edges in images. Look on wikipedia for Edge detection and Sobel filter for exampels.

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