can anyone help me how to rotate an image using for loop

Hi, I am new to this matlab language. This is the image and I need to rotate this image by 90 without using matlab functions.can anyone help me in this regard.

Thanks in advance

[Azzi Abdelmalek]

Why you need to use loops?

[Jan]

Do you want to rotate the image on the screen, or to save a set of images with different rotation angles? Should the image be scaled or cropped, such that the size does not change?

Please provide more details.

[vetri veeran]

 This is the image which i given below, and I need to rotate this image by 90 without using matlab functions such that the size should not cropped or changed. Finally, i need to display the rotated image.can you help me in this regard.

Thank you

[Jan]

This is a homework question. So please show us, what you have tried so far and ask a specific question.

Answer 1

[Matt J]

I can't see how you would do this without at least the size() command. You need that to determine the size of your loops.

Anyway, because this is homework, I will just give an example similar to what you are asking. Below is code to transpose a matrix purely with loops. I leave it to you to modify it as needed for a 90 degree rotation.

        [m,n]=size(A);

        for i=m:-1:n
         for j=n:-1:1

           B(j,i)=A(i,j);

         end
        end