MATLAB: How to find min and max gray level value in GUI

Question

I making GUI to find min and max gray level value. i do not know how to implement the function into the GUI.

<<

>>

Answer 1

Try this in your callback after the imshow() call:

minGL = min(X(:));
maxGL = max(X(:));
message = sprintf('The min gray level = %d.\nThe max gray level = %d.', minGL, maxGL);
uiwait(helpdlg(message));