adding gaussian noise to an image

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Anusha
Anusha 2012-10-2
how can i add gaussian noise to an image without using built in function imnoise....please help..

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回答（1 个）

Wayne King
Wayne King 2012-10-2
You can use randn()
X = ones(256,256)+randn(256,256);
You have to consider the datatype of your image though to make it useful.

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