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Sir plz help me to rectify this error

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kaavya subramani
kaavya subramani 2016-8-6
评论： kaavya subramani 2016-8-11
X=reshape(x,size(Y));
where x=1; and Y=256 * 256 uint8
I got the error like this
"To RESHAPE the number of elements must not change."

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Image Analyst
Image Analyst 2016-8-6
Since x=1, you can use ones():
X = ones(size(Y)); % X is a double
If x is not one, but some other scalar, then you can use.
X = x * ones(size(Y)); % X is a double
If you want X to also be uint8, pass that class in:
X = ones(size(Y), 'uint8'); % Now X will also be uint8

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Walter Roberson
Walter Roberson 2016-8-6
You cannot reshape a scalar into a 256 by 256 matrix. reshape() cannot create new data.
Perhaps you want
X = repmat(x, size(Y));

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