function?[JI?JH?JA]?=?color_histeq（I）;
%?function?J?=?color_histeq（I）;
%?Perform?a?type?of?color?histogram?equalization
%?Method?is?from?Matlab‘s?Contrast?Enhancement?Technique?Website
srgb2lab?=?makecform（‘srgb2lab‘）;
lab2srgb?=?makecform（‘lab2srgb‘）;

I?=?applycform（I?srgb2lab）;?%?convert?to?L*a*b*?color?space

%?the?values?of?luminosity?can?span?a?range?from?0?to?100;?scale?them
%?to?[0?1]?range?（appropriate?for?MATLAB（R）?intensity?images?of?class
%?double?before?applying?the?three?contrast?enhancement?techniques
max_luminosity?=?100;
IL?=?I（::1）/max_luminosity;

%?replace?the?luminosity?layer?with?the?processed?data?and?then?convert
%?the?image?back?to?the?RGB?colorspace

%?perform?imadjust?processing?to?luminosity?layer
JI?=?I;
JI（::1）?=?imadjust（IL）*max_luminosity;
JI?=?applycform（JI?lab2srgb）;

%?perform?standard?histogram?equalization?to?luminosity?layer
JH?=?I;
JH（::1）?=?histeq（IL）*max_luminosity;
JH?=?applycform（JH?lab2srgb）;

%?perform?adaptive?histogram?equalization?to?luminosity?layer
JA?=?I;
JA（::1）?=?adapthisteq（IL）*max_luminosity;
JA?=?applycform（JA?lab2srgb）;

%?convert?original?image?back?to?RGB
I?=?applycform（I?lab2srgb）;

%?display?original?image?and?all?equalized?image?in?2x2?figure
figure;?subplot（221）;?title（‘Original‘）;?imshow（I）;
subplot（222）;?title（‘IMAdjust‘）;?imshow（JI）;
subplot（223）;?title（‘histeq‘）;?imshow（JH）;
subplot（224）;?title（‘adapthisteq‘）;?imshow（JA）;

end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-11-05?12:43??MATLAB?CODE\
?????文件??????397649??2010-03-18?16:48??MATLAB?CODE\002.png
?????文件???????30459??2012-12-23?20:36??MATLAB?CODE\canberra_input.jpg
?????文件??????447699??2010-03-18?16:48??MATLAB?CODE\canyon-hazefree.png
?????文件???????88865??2010-03-18?16:48??MATLAB?CODE\canyon-t.png
?????文件???????20903??2010-03-18?16:48??MATLAB?CODE\canyon-tc.png
?????文件????????1474??2010-03-18?04:30??MATLAB?CODE\color_histeq.m
?????文件????????1113??2010-03-18?04:30??MATLAB?CODE\dark_channel.m
?????文件???????60426??2012-12-10?14:34??MATLAB?CODE\forest-input.jpg
?????文件??????194001??2012-12-10?13:58??MATLAB?CODE\forest1.jpg
?????文件?????????582??2010-03-18?04:30??MATLAB?CODE\hazefree.m
?????文件????????1048??2012-12-10?22:10??MATLAB?CODE\HazeRemovalREADME.m
?????文件??????595854??2012-12-10?15:50??MATLAB?CODE\house-input.bmp
?????文件????????3653??2010-03-18?04:30??MATLAB?CODE\matLap.m
?????文件???????43006??2012-12-24?21:07??MATLAB?CODE\mountain?0.8?soft.jpg
?????文件???????42676??2012-12-24?21:06??MATLAB?CODE\mountain?0.85?soft.jpg
?????文件???????41867??2012-12-24?20:58??MATLAB?CODE\mountain?0.9?soft.jpg
?????文件???????39652??2012-12-24?21:04??MATLAB?CODE\mountain?0.95?soft.jpg
?????文件??????589878??2012-12-24?20:44??MATLAB?CODE\mountain-input.bmp
?????文件??????210653??2012-12-24?21:34??MATLAB?CODE\NY17?SOFT?0.75
?????文件??????214876??2012-12-24?21:29??MATLAB?CODE\NY17?SOFT?0.85
?????文件??????219121??2012-12-24?21:24??MATLAB?CODE\NY17?SOFT?0.9.jpg
?????文件??????221478??2012-12-24?21:15??MATLAB?CODE\NY17?SOFT?0.95.jpg
?????文件??????793283??2012-12-24?21:02??MATLAB?CODE\ny17_photo.jpg
?????文件??????720054??2012-12-10?16:20??MATLAB?CODE\pumpkins-input.bmp
?????文件?????????477??2010-03-18?04:30??MATLAB?CODE\refine_t.m
?????文件??????314868??2012-12-23?19:47??MATLAB?CODE\swan_input.jpg
?????文件??????720054??2012-12-10?16:48??MATLAB?CODE\sweden_input.bmp
?????文件??????149946??2012-12-24?21:42??MATLAB?CODE\t.jpg
?????文件??????810054??2012-12-10?21:21??MATLAB?CODE\tiananmen1.bmp
?????文件???????92984??2012-12-23?20:27??MATLAB?CODE\tokyo_input.jpg
............此處省略2個文件信息