function?retimg?=?bialteral（img?N?sigma）
%%?colorspace?transformation
???img?=?rgb2hsv（img）;%convert?rgb?to?hsv?colorspace?in?order?to?process

%%?pre-computer?domain?filtering
sigma_d?=?sigma（1）;
sigma_r?=?sigma（2）;
[XY]?=?meshgrid（-N:N-N:N）;%generate?two?matrix?
D?=?exp（-（X.^2+Y.^2）/（2*sigma_d^2））;%domain?weights?with?Euclidean?distance

%%?create?waitbar
h?=?waitbar（0‘illumination?retinex?algorithm……‘）;
set（h‘Name‘‘Illumination?Retinex‘）;

%%?rang?filtering?in?v?layer
dim?=?size（img）;%dim=[heightlength3]
B?=?zeros（dim）;%create?an?image?B?with?the?same?size?and?dimension?with?the?zero?value.
for?i?=?1:dim（1）
????for?j?=?1:dim（2）
????????iMin?=?max（i-N1）;
????????iMax?=?min（i+Ndim（1））;
????????jMin?=?max（j-N1）;
????????jMax?=?min（j+Ndim（2））;
????????L?=?img（iMin:iMaxjMin:jMax3）;%extract?the?local?region
????????
????????d?=?L-img（ij3）;%the?dissimilarity?between?the?surroud?and?center
??????????
????????R?=?exp（-（d.^2）/（2*sigma_r^2））;%range?filter?weights
????????????????
????????F?=?R.*D（（iMin:iMax）-i+N+1（jMin:jMax）-j+N+1）;%its?row?is?from?iMin-i+N+1?to?iMax-i+N+1and?so?as?line
????????for?m?=?1:iMax-iMin+1
????????????for?n?=?1:jMax-jMin+1
????????????????if?d（mn）?????????????????????F（mn）?=?0;
????????????????end
????????????end
????????end
????????norm_F?=?sum（F（:））;
????????B（ij3）?=?sum（sum（F.*L））/norm_F;

????????retimg（ij1）?=?img（ij1）;
????????retimg（ij2）?=?img（ij2）;
????????retimg（ij3）?=?B（ij3）;
????end
????waitbar（i/dim（1））;
end
close（h）;%close?the?bar

%%?display?colorspace?transformation
img?=?hsv2rgb（img）;
retimg?=?hsv2rgb（retimg）;

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2010-07-15?10:06??hsv\
?????文件?????1970126??2010-07-15?09:39??hsv\2005.bmp
?????文件??????915894??2010-07-12?18:52??hsv\5.bmp
?????文件????????1660??2010-07-15?10:27??hsv\bialteral.m
?????文件????????1196??2010-07-15?10:28??hsv\bialteral2.m
?????文件?????1962090??2010-07-15?10:19??hsv\boy.bmp
?????文件????????1674??2010-07-15?10:13??hsv\demo.m
?????文件?????1969902??2010-07-15?10:19??hsv\girl.bmp
?????文件?????2963789??2013-03-20?18:45??PPT_Retinex?by?Two?Bilateral?Filters.pdf
?????文件?????2516867??2013-03-20?18:21??Retinex?by?Two?Bilateral?Filters.pdf
?????文件??????649988??2018-07-05?08:55??hsv\21.jpg
?????文件??????609142??2018-07-05?08:56??hsv\22.jpg
?????文件??????660655??2018-07-05?08:56??hsv\23.jpg
?????文件??????619138??2018-07-05?08:56??hsv\24.jpg
?????文件??????791326??2018-07-05?08:57??hsv\25.jpg
?????文件??????477529??2014-08-19?10:03??hsv\DSC_0021.jpg
?????文件??????458033??2014-08-19?10:03??hsv\DSC_0022.jpg
?????文件??????621790??2014-08-19?10:03??hsv\DSC_0023.jpg
?????文件??????508904??2014-08-19?10:03??hsv\DSC_0024.jpg
?????文件??????641872??2014-08-19?10:03??hsv\DSC_0025.jpg