[問題] imnoise已回收
不好意思我問個問題
我現在有個gray的image y 裡頭值是double值的range 是0~255
我是這樣寫的
Noisy = imnoise(y,'gaussian', 0 , 0.05);
然後Noisy跑出來的圖片是range為0~1之間的double
在他的的help我發現這行
Note:
The mean and variance parameters for 'gaussian', 'localvar',
and 'speckle' noise types are always specified as if the
image were of class double in the range [0, 1]. If the
input image is of class uint8 or uint16,
the imnoise function converts the image to double,
adds noise according to the specified type and parameters, and then converts
the noisy image back to the same class as the input.
意思是說我必須先把原圖先用成介於[0 1]之間然後做完再轉回來嗎?
請問高手是怎樣做的
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