shifting image up by known number of pixels

Hi,

I have an image of 85*360*3. If I show it with imagesc, the Y axes will be between 0 to 85. I'd like to shift the whole image up to be with shift of 42 such that the 43 row of pixels would be 90.

Latter on I'll have to add some data on the image (in selected points) based on my analysis.

How can I do that?

Answer 1

[KSSV]

Do it by indexing.....Read about MATLAB array indexing.

[michael]

Please elaborate more on this

[KSSV]

A = magic(5) ;   % demo matrix 
A(3,3) = 0 ;    % repalce 3,3 element with 0