I want to extract the image without the axes

I can only use 'axis off' to hidden the axis,but it still has white area.I can not deal with image one by one because I need to deal with many date in the same code.

[Jan]

Which prolem do you want to solve?

[neal paze]

I make a image with the function of imagesc.I only want to the image without the axies and backgroud.But the axis can only off,can not delete.

[neal paze]

In a word ,how to do this

Answer 1

[Jan]

img = getframe(AxesHandle)

[neal paze]

It still does not work.It tells "Unrecognized function or variable 'AxesHandle'."