function?R=gray2rgb（img1img2）
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%　This?Program?converts?a?gray?image?ro?RGB?image?based?on?the?colors?of?the?destination?image.?The　better?the?destination?image?match?with?the?source?gray?image?the?better?the?coloring?will?be.?The?program?takes?some?time??as?the?searching?time?is?high.?You?can?decrease?the?searching?time?by?taking　only?samples?from?the?used?color?image?but?quality?may?decrease.?U?can?use?jittered?sampling?for?improving?running?speed.?%?
%??You?can?use?also?use?the?attahed?test?images?Use?the?following?combinations?for?better?result　nature1.jpg（as?img1）?and?nature2.jpg（as?img2）?or?test1.jpg（as?img1）?and?test2.jpg?（as?img2）　%
%　Usage:?gray2rgb（‘nature1.jpg‘‘nature2.jpg‘）;??%

%??Authors?:?Jeny　Rajan??Chandrashekar　P.S?%
%??鄙人做了一點(diǎn)微小的優(yōu)化。????????????????P.S?%
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%?img1?-?Source?Image??（gray?image）???
%?img2?-?Selected?color?image?for?coloring?the?gray?image.?

%%?導(dǎo)入
?tic;clc;
?warning?off;
?imG=imread（img1）;
?imR=imread（img2）;
?[txtytz]=size（imG）;
?[sxsysz]=size（imR）;
?
?if?tz~=1
?????imG=rgb2gray（imG）;
?end
?imG（::2）=imG（::1）;