How can I use the image data stored in setappdata twice in my code?

I stored an image data using setappdata in this function. I would like to use this image data twice in 2 separate functions. How can this be done?

Answer 1

[Walter Roberson]

Either use nested functions and shared variables, or getappdata() in both functions where you need the data.

[Gee Cheng Mun]

I used getappdata(), but GUI did not display the image data I needed. It worked for the first function, but for another function when I tried to retrieve the same image data, it did not show at all.

[Walter Roberson]

getappdata() does not display data; you need to imshow() or image() or imagesc() the retrieved data.

And of course the retrieval has to be after the data has been stored; in your second case your flow of routines might not have stored it yet.

[Gee Cheng Mun]

yes! I got it, thank you so much for all your help!:)