How can we apply the standard deviation?

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wissa amer
wissa amer 2014-3-17
回答： Dishant Arora 2014-3-18
In the following code image was divided into 8 * 8 blocks
Image=rgb2gray(imread('1.jpg')); [m n]=size(Image);
Nbrx = floor(m./8); Nbry = floor(n./8); Nd=1;
for i=1:Nbrx
for j=1:Nbry
Mat=Image((i-1)*8+1:i*8,(j-1)*8+1:j*8);
subplot(Nbrx,Nbry,Nd); imshow(Mat)
Nd=Nd+1;
end
end
How can we apply the standard deviation on each block

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回答（1 个）

Dishant Arora
Dishant Arora 2014-3-18
doc blockproc
It operates given function on an image block by block, so will get rid of the code you wrote above to partition the image. And std gives standard deviation.

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