I am working on a flex application. In this application i am
working on applying different filters to an image.
I am applying blur,invert,sketch,noise and many more other
filters. I want to apply undo / redo functions in this application.
It means once user has converted image from color to
black&white then user can undo this change and he can also redo
So if u have any idea about this feature then plese help me