function?background?=?getBackground（sequence?bgframesRange）
%getBackground??Computes?background?model?for?a?video?sequence.
%??background?=?getBackground（sequence?bgframesRange）?computes
%??background?model?for?a?grayscale?video?sequence?based?on?the?its
%??frames?in?the?range?bgframesRange.?The?model?（background?image）
%??is?computed?using?the?median?method.

%??Written?by:?Elad?Bullkich?Idan?Ilan?Yair?Moshe
%??Signal?and?Image?Processing?Laboratory?（SIPL）
%??Department?of?Electrical?Engineering
%??Technion?-?Israel?Institute?of?Technology
%
%??$Revision?1.0????????$Date:?5/30/2012

%?Reference:
%?E.?Bullkich?I.?Ilan?Y.?Moshe?Y.?Hel-Or?and?H.?Hel-Or?“Moving?Shadow
%?Detection?by?Nonlinear?Tone-Mapping“?Proc.?of?19th?Intl.?Conf.?on
%?Systems?Signals?and?Image?Processing?（IWSSIP?2012）?Vienna?April?2012.
%?[Online]??http://sipl.technion.ac.il/~yair/

height?=?size（sequence1）;
width?=?size（sequence2）;

sequence2?=?zeros（height?width?bgframesRange（2）-bgframesRange（1）+1）;
for?curframe?=?bgframesRange（1）:bgframesRange（2）
????sequence2（:?:?curframe-bgframesRange（1）+1）?=?sequence（:?:?curframe）;
end

background?=?zeros（height?width）;
for?y?=?1:height
????for?x?=?1:width
????????background（yx）?=?median（sequence2（yx?:））;
????end
end

end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-11-23?17:12??陰影圖提取\
?????文件?????6826134??2014-11-23?17:02??陰影圖提取\air（1）.AVI
?????文件????????1306??2012-07-13?02:08??陰影圖提取\getBackground.m
?????文件????????1310??2014-02-12?14:04??陰影圖提取\license.txt
?????文件????????2115??2012-07-16?23:08??陰影圖提取\MTM_PWC.m
?????文件????????3339??2014-11-28?10:48??陰影圖提取\shadowDetection.asv
?????文件????????3340??2014-11-28?10:45??陰影圖提取\shadowDetection.m
?????文件????????5326??2014-11-23?15:16??陰影圖提取\shadowDetection___MTM_PWC_1.1.zip
?????文件????????1824??2012-05-31?23:42??陰影圖提取\thresh.m
?????目錄???????????0??2014-11-23?17:12??陰影圖提取\video?enhancement\
?????文件??????721670??2012-07-11?21:51??陰影圖提取\video?enhancement\air.AVI
?????文件?????????527??2012-07-12?00:02??陰影圖提取\video?enhancement\gray_level_images.m
?????文件????????5751??2012-07-10?12:17??陰影圖提取\video?enhancement\image_enhancement_sw.m
?????文件??????130528??2014-11-23?16:42??陰影圖提取\video?enhancement\RawData.png
?????文件????????1496??2012-07-20?12:54??陰影圖提取\video?enhancement\video_enhancement.m
?????文件??????264911??2012-07-20?13:10??陰影圖提取\video?enhancement\video_enhancement_image.png
?????文件??????954194??2014-11-23?16:22??陰影圖提取\video_enhancement.zip