how to get odd rows and columns,even rows and columns
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A1 is the lena image
A is to the first row
similarly how to get the even rows ,even columns,odd rows,odd columns
A1 = imread('lena1.jpg');
A=A1(:,1);
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Birdman
2018-3-13
Consider you have number of rows and columns which is an even number,
Odd rows:
A1(1:2:end-1,:)
Even rows:
A1(2:2:end,:)
Odd columns:
A1(:,1:2:end-1)
Even columns:
A1(:,2:2:end)
3 个评论
Jos (10584)
2018-3-14
By substracting one, you discard the last odd row (column) when the number of rows (columns) of the array is odd. When this number is even, it does not matter, so just to be flexible, do not subtract one :)
Birdman
2018-3-14
Yes you are right Jos, therefore at the beginning of the question, I stated that:
Consider you have number of rows and columns which is an even number
:)
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