idamnjanovic@1: function y = imnormalize(x)
idamnjanovic@1: %IMNORMALIZE Normalize image values.
idamnjanovic@1: %  Y = IMNORMALIZE(X) linearly transforms the intensity values of the image
idamnjanovic@1: %  X to tightly cover the range [0,1]. If X has more than one channel, the
idamnjanovic@1: %  channels are handled as one and normalized using the same transform.
idamnjanovic@1: 
idamnjanovic@1: 
idamnjanovic@1: %  Ron Rubinstein
idamnjanovic@1: %  Computer Science Department
idamnjanovic@1: %  Technion, Haifa 32000 Israel
idamnjanovic@1: %  ronrubin@cs
idamnjanovic@1: %
idamnjanovic@1: %  May 2004
idamnjanovic@1: 
idamnjanovic@1: 
idamnjanovic@1: maxval = max(x(:));
idamnjanovic@1: minval = min(x(:));
idamnjanovic@1: 
idamnjanovic@1: y = (x-minval) / (maxval-minval);