annotate util/ksvd utils/imnormalize.m @ 70:c3eca463202d

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author idamnjanovic
date Wed, 16 Mar 2011 14:16:57 +0000
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idamnjanovic@70 1 function y = imnormalize(x)
idamnjanovic@70 2 %IMNORMALIZE Normalize image values.
idamnjanovic@70 3 % Y = IMNORMALIZE(X) linearly transforms the intensity values of the image
idamnjanovic@70 4 % X to tightly cover the range [0,1]. If X has more than one channel, the
idamnjanovic@70 5 % channels are handled as one and normalized using the same transform.
idamnjanovic@70 6
idamnjanovic@70 7
idamnjanovic@70 8 % Ron Rubinstein
idamnjanovic@70 9 % Computer Science Department
idamnjanovic@70 10 % Technion, Haifa 32000 Israel
idamnjanovic@70 11 % ronrubin@cs
idamnjanovic@70 12 %
idamnjanovic@70 13 % May 2004
idamnjanovic@70 14
idamnjanovic@70 15
idamnjanovic@70 16 maxval = max(x(:));
idamnjanovic@70 17 minval = min(x(:));
idamnjanovic@70 18
idamnjanovic@70 19 y = (x-minval) / (maxval-minval);