MATLAB: How can i choose the folder from the files in system by using matlab code..

folder

In system we will have different folders.i want to browse the folder by matlab comment..

doc uigetdir
doc uigetfile  % and friends
help uitools

to see the builtin Matlab user interface stuff and select as needed/desired.

source_dir   = uigetdir(); %Folder with the *.tif files
cd(source_dir); %Changes folder to chosen folder
mkdir('Target');
dest_dir = [pwd '/Target'];

Consider using roipoly()

Alternately, only ginput() one value at a time, and text() a '+' into place at the returned coordinates before going on to the next.