How to rotate an image in a button?

Good night,

I wanted to ask for help regarding the matlab for image processing.

I have a problem, I have a picture but it is turning evil.

They told me to put a variable to 0 where 0 is the initial angle.

RotateCounter = 0;

handles.image = imrotate (handles.image, RotateCounter, 'crop');

RotateCounter RotateCounter = -20;

imageRot = imrotate (handles.image, RotateCounter, 'crop');

imshow (imageRot 'Parent', handles.axes2);

But I do not get ...

[Image Analyst]

You do not get what ? What are you expecting?