zoom in image partially in matlab GUI
support zooming several images in the same area, it's convenient to compare different pictures in the same area for writing papers or reports
for several images, you can select zoom in area in the first image only
use left mouse button to control the zoomed area
use right mouse button (or ctrl + left mouse button)to move the zoomed area
press 's' to save marked image and zoomed image
edgecolor: the edge color of marked area
rect_tag: mask the rectangle and find the rectangle object while update figure
rect_mode: square or rectangle
image: the image array
zoomed_image_size
imresize_method: like nearest
zoomed_image_save_dir
example images(original image) is downloaded from http://mridata.org/, it's in Stanford Fullysampled 3D FSE Knees project