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how can we find distance between two image blocks?

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angel
angel 2013-5-3
评论： Image Analyst 2018-10-21
i've divided the image into overlapping blocks.... i've calculated the correlation of these blocks with each other..
now i want two calculate the distance between these blocks like
distance between block 2 ans block 3.
block2=[24 42;107 110];
block3=[25 24; 55 56];
i've used the formula as:
distance=norm(block2-block3);
i got the following error
Undefined function 'norm' for input arguments of type 'uint8'.
how this type of error can be eliminated?
plz help me

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Image Analyst
Image Analyst 2013-5-3
Cast both to double first. You need to do that anyway, because uint8 does not allow negative numbers, while a subtraction requires it.

更多回答（1 个）

HABTE TADESSE LIKASSA
编辑：Image Analyst 2018-10-21
norm_two = 8*norm(Y, 2)
Undefined function 'norm' for input arguments of type 'uint8'
How can I solve this please?

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