function?[cgtheta]?=?cgmo（imradiusnorientvarargin）
%?function?[cg]?=?cgmo（imradiusnorient...）
%
%?Compute?the?color?gradient?at?a?single?scale?and?multiple
%?orientations.
%
%?INPUT
%	im		Grayscale?or?RGB?image?values?in?[01].
%	radius		Radius?of?disc?for?cg.
%	norient		Number?of?orientations?for?cg.
%	‘nbins‘		Number?of?bins;?should?be?>?1/sigmaSim.
%	‘sigmaSim‘	For?color?similarity?function.
%	‘gamma‘		Gamma?correction?for?LAB?[2.5].
%	‘smooth‘	Smoothing?method?one?of?
%			{‘gaussian‘‘savgol‘‘none‘}?default?‘none‘.
%	‘sigmaSmo‘	Sigma?for?smoothing?default?to?radius.
%
%?OUTPUT
%	cg		Size?[hwdnorient]?array?of?cg?images
%			where?d?is?the?dimensionality?of?the?image.
%
%?The?input?parameters?{radiusnbinssigmaSimsigmaSmo}?should?be
%?scalars?when?the?input?image?is?grayscale?and?can?be?either?scalars
%?or?3-element?vectors?when?the?image?is?RGB.
%
%?See?also?cgmo.
%
%?David?R.?Martin?
%?April?2003

%?process?options
nbins?=?32;
sigmaSim?=?0.1;
gamma?=?2.5;
smooth?=?‘none‘;
sigmaSmo?=?radius;
for?i?=?1:2:numel（varargin）
??opt?=?varargin{i};
??if?~ischar（opt）?error（‘option?names?not?a?string‘）;?end
??if?i==numel（varargin）?error（sprintf（‘option?‘‘%s‘‘?has?no?value‘opt））;?end
??val?=?varargin{i+1};
??switch?opt
???case?‘nbins‘?nbins=val;
???case?‘sigmaSim‘?sigmaSim=val;
???case?‘gamma‘?gamma=val;
???case?‘smooth‘
????switch?val
?????case?{‘none‘‘gaussian‘‘savgol‘}?smooth=val;
?????otherwise?error（sprintf（‘invalid?option?smooth=‘‘%s‘‘‘val））;
????end
???case?‘sigmaSmo‘?sigmaSmo=val;
???otherwise?error（sprintf（‘invalid?option?‘‘%s‘‘‘opt））;
??end
end

%?check?arguments
if?ndims（im）==2?%?grayscale?image
??if?numel（radius）~=1?error（‘radius?should?have?1?element‘）;?end
??if?numel（nbins）~=1?error（‘nbins?should?have?1?element‘）;?end
??if?numel（sigmaSim）~=1?error（‘sigmaSim?should?have?1?element‘）;?end
??if?numel（sigmaSmo）~=1?error（‘sigmaSim?should?have?1?element‘）;?end
elseif?ndims（im）==3?%?RGB?image
??if?numel（radius）==1?radius?=?radius*ones（31）;?end
??if?numel（nbins）==1?nbins?=?nbins*ones（31）;?end
??if?numel（sigmaSim）==1?sigmaSim?=?sigmaSim*ones（31）;?end
??if?numel（sigmaSmo）==1?sigmaSmo?=?sigmaSmo*ones（31）;?end
??if?numel（radius）~=3?error（‘radius?should?have?1?or?3?elements‘）;?end
??if?numel（nbins）~=3?error（‘nbins?should?have?1?or?3?elements‘）;?end
??if?numel（sigmaSim）~=3?error（‘sigmaSim?should?have?1?or?3?elements‘）;?end
??if?numel（sigmaSmo）~=3?error（‘sigmaSmo?should?have?1?or?3?elements‘）;?end
??radius?=?radius（:）;
??nbins?=?nbins（:）;
??sigmaSim?=?sigmaSim（:）;
??sigmaSmo?=?sigmaSmo（:）;
else
??error（‘image?not?of?valid?dimension‘）;
end
norient?=?max（1norient）;
nbins?=?max（1nbins）;

%?min?and?max?values?for?ab?channels?of?LAB
%?used?to?scale?values?into?the?unit?interval
abmin?=?-73;
abmax?=?95;

%?make?sure?nbins?is?large?enough?with?respect?to?sigmaSim
if?any（?nbins??

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2012-04-05?23:25??CTM_image_segmentor\
?????文件????????6148??2006-06-25?09:21??CTM_image_segmentor\.DS_Store
?????文件???????38411??2012-04-05?22:21??CTM_image_segmentor\00111-heatmap.mat
?????文件?????1900292??2012-04-05?23:24??CTM_image_segmentor\00111-saliencymap.mat
?????文件????????8976??2012-04-05?10:53??CTM_image_segmentor\00211.mat
?????目錄???????????0??2012-03-28?23:28??CTM_image_segmentor\Benchmark\
?????文件????????2006??2003-03-27?07:51??CTM_image_segmentor\Benchmark\affinityPRMI.m
?????文件????????1344??2003-11-06?09:06??CTM_image_segmentor\Benchmark\benchNewAlg.m
?????文件????????3655??2003-11-04?01:31??CTM_image_segmentor\Benchmark\boundaryBench.m
?????文件????????2220??2003-11-13?00:39??CTM_image_segmentor\Benchmark\boundaryBenchGraphs.m
?????文件????????2387??2003-10-31?23:42??CTM_image_segmentor\Benchmark\boundaryBenchGraphsHuman.m
?????文件????????3398??2003-11-06?02:45??CTM_image_segmentor\Benchmark\boundaryBenchGraphsMulti.m
?????文件???????15216??2003-11-13?01:00??CTM_image_segmentor\Benchmark\boundaryBenchHtml.m
?????文件????????2664??2003-07-04?23:56??CTM_image_segmentor\Benchmark\boundaryBenchHuman.m
?????文件????????2132??2003-11-13?01:34??CTM_image_segmentor\Benchmark\boundaryPR.m
?????文件????????2520??2004-06-23?06:11??CTM_image_segmentor\Benchmark\boundaryPRfast.m
?????目錄???????????0??2012-03-28?23:28??CTM_image_segmentor\Benchmark\build\
?????目錄???????????0??2007-04-10?04:36??CTM_image_segmentor\Benchmark\build\ix86_linux\
?????文件?????????806??2003-02-02?10:30??CTM_image_segmentor\Benchmark\calcMI.m
?????文件????????2171??2003-11-01?00:39??CTM_image_segmentor\Benchmark\correspondPixels.cc
?????文件????????1637??2003-04-20?10:50??CTM_image_segmentor\Benchmark\correspondPixels.m
?????文件????????1307??2003-11-01?00:41??CTM_image_segmentor\Benchmark\demo.m
?????文件?????????419??2003-11-01?01:08??CTM_image_segmentor\Benchmark\GNUmakefile
?????文件???????12024??2003-04-01?04:01??CTM_image_segmentor\Benchmark\match.cc
?????文件?????????280??2003-01-31?05:44??CTM_image_segmentor\Benchmark\match.hh
?????文件?????????854??2003-03-25?09:14??CTM_image_segmentor\Benchmark\plotMatch.m
?????文件????????2553??2003-11-06?09:08??CTM_image_segmentor\Benchmark\README
?????文件?????????760??2003-11-01?00:40??CTM_image_segmentor\Benchmark\testCorrespondPixels.m
?????文件?????????289??2003-04-20?10:27??CTM_image_segmentor\Benchmark\upsamplepb.m
?????文件????????4312??2012-03-28?22:49??CTM_image_segmentor\cgmo.m
?????文件????????3317??2003-11-13?01:45??CTM_image_segmentor\CHANGELOG
............此處省略1578個文件信息