%?This?function?PSNR?=?calcpsnr（fF）?will?compute?the?PSNR?of?two?given?
%?images.?The?function?accepts?as?inputs?the?2?images?where?the?first?
%?image?is?the?source?image?f（xy）?containing?N?by?M?pixels?and?the?second?
%?is?the?reconstructed?image?F（xy）.?[note?f?and?F?must?be?between?0?and?255]
%?The?function?also?calculates?the?Error?image?by?taking?the?difference
%?between?the?reconstructed?and?original?pixels.
%?The?typical?construction?of?the?error?image?multiples?the?difference?by?a
%?constant?to?increase?the?visible?difference?and?translates?the?entire
%?image?to?a?gray?level.
%?Formulas?for?these?computations?have?been?gotten?from
%?http://bmrc.berkeley.edu/courseware/cs294/fall97/assignment/psnr.html?on
%?July?26th?2007.?The?code?was?put?together?by?me?Toritseju?Okpotse?same
%?day.
%The?code?has?been?modified?on?11-11-2008?by?me?Gholamreza?Anbarjafari
%（Shahab）.



function?calcpsnr（fF）
??
???[N?M]?=?size（F）;
??
???MSE?=?sqrt（（sum（sum（（double（f）-double（F））.^2）））/（N*M））;
???PSNR?=?20*log10（255/MSE）;
???sprintf（‘The?PSNR?of?given?image?is:?%5.2fdB.‘PSNR）
???
???

?屬性????????????大小?????日期????時間???名稱
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?????文件????????1117??2009-05-20?06:12??calcpsnr.m
?????文件????????1318??2014-02-12?12:40??license.txt