MATLAB: Clearing GUI axis difficulty

axisguiguidematlab gui

I have a GUI that has two axis. The first axis is my original image and the second axis is my filtered image where I am able to apply various filters to change the image. I have a Reset command which I want to Reset both axis's to be blank to allow the user to input another image. I used the matlab command.
arrayfun(@cla,findall(0,'type','axes'))
Which clears both axis but when I load an image it loads it into the second axis and not the first axis. Then when I apply filters it just filters the second axis image leaving the first one blank. Any ideas how to fix this? I have tried storing both axis as global variables and then using cla but this gives me the same problem as before.