Do not do
handles.axes1;
hImage = image( zeros(vidRes(2), vidRes(1), nBands) );
as that is not reliable. Use
hImage = image( zeros(vidRes(2), vidRes(1), nBands), 'Parent', handles.axes1 );
Similarly instead of
axes(handles.axes7);
imshow(myImage);
use
imshow(myImage, 'Parent', handles.axes7);
Better yet would be to use
image(myImage, 'Parent', handles.axes7);
because imshow() changes a number of settings, and can trigger the deletion of axes (although that cannot happen in your circumstances, it is safer to get used to using image() instead of having to worry about whether you might encounter those circumstances.)
