function?[Result]=Function_ColorToGray（CitraInput）

%get?red?channel
R_Channel=CitraInput（::1）;

%figure;?imshow（R_Channel）;?title（‘R_Channel‘）;

%get?green?channel
G_Channel=CitraInput（::2）;

%figure;?imshow（G_Channel）;?title（‘G_Channel‘）;

%get?blue?channel
B_Channel=CitraInput（::3）;

%figure;?imshow（B_Channel）;?title（‘B_Channel‘）;

%?get?gray?image?with?lightness
GrayImage=（max（max（R_Channel?G_Channel）?B_Channel）?...
????+?min（min（R_Channel?G_Channel）?B_Channel））./2;

%figure;?imshow（GrayImage）;?title（‘GrayImage?lightness‘）;

%?get?gray?image?with?average
GrayImage=（R_Channel+G_Channel+B_Channel）./3;

%figure;?imshow（GrayImage）;?title（‘GrayImage?average‘）;

%?get?gray?image?with?luminosity
GrayImage=0.2989?*?R_Channel?+?0.5870?*?G_Channel?+?0.1140?*?B_Channel;

%figure;?imshow（GrayImage）;?title（‘GrayImage?luminosity‘）;
Result=GrayImage;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-03-14?12:28??CitrusImage\
?????目錄???????????0??2013-05-09?07:44??CitrusImage\Data?Testing\
?????文件???????53587??2013-03-16?01:05??CitrusImage\Data?Testing\CitrusLemon4.jpg
?????文件???????39088??2013-03-16?01:05??CitrusImage\Data?Testing\CitrusLemon5.jpg
?????文件???????57793??2013-03-16?01:05??CitrusImage\Data?Testing\CitrusNipis8.jpg
?????文件???????28742??2013-03-16?01:05??CitrusImage\Data?Testing\CitrusNipis9.jpg
?????文件???????39014??2013-03-16?01:05??CitrusImage\Data?Testing\CitrusOrange6.jpg
?????文件???????26625??2013-03-16?01:05??CitrusImage\Data?Testing\CitrusOrange7.jpg
?????目錄???????????0??2013-05-09?07:10??CitrusImage\Data?Training\
?????文件???????53595??2013-03-16?01:04??CitrusImage\Data?Training\CitrusLemon1.jpg
?????文件???????26545??2013-03-16?01:04??CitrusImage\Data?Training\CitrusLemon2.jpg
?????文件???????57081??2013-03-16?01:04??CitrusImage\Data?Training\CitrusLemon3.jpg
?????文件???????28742??2013-03-16?01:04??CitrusImage\Data?Training\CitrusNipis1.jpg
?????文件??????103578??2013-03-16?01:04??CitrusImage\Data?Training\CitrusNipis2.jpg
?????文件???????28751??2013-03-16?01:04??CitrusImage\Data?Training\CitrusNipis3.jpg
?????文件??????103578??2013-03-16?01:04??CitrusImage\Data?Training\CitrusNipis4.jpg
?????文件???????69182??2013-03-16?01:04??CitrusImage\Data?Training\CitrusNipis5.jpg
?????文件???????28802??2013-03-16?01:04??CitrusImage\Data?Training\CitrusNipis6.jpg
?????文件???????59741??2013-03-16?01:04??CitrusImage\Data?Training\CitrusNipis7.jpg
?????文件???????27459??2013-03-16?01:04??CitrusImage\Data?Training\CitrusOrange1.jpg
?????文件???????27863??2013-03-16?01:04??CitrusImage\Data?Training\CitrusOrange2.jpg
?????文件???????47538??2013-03-16?01:04??CitrusImage\Data?Training\CitrusOrange3.jpg
?????文件???????60558??2013-03-16?01:04??CitrusImage\Data?Training\CitrusOrange4.jpg
?????文件???????31607??2013-03-16?01:04??CitrusImage\Data?Training\CitrusOrange5.jpg
?????目錄???????????0??2013-06-06?17:43??Matlab_Code_To_Classification_Citrus\
?????文件?????1385077??2013-03-31?22:51??Matlab_Code_To_Classification_Citrus\20130331_214946.jpg
?????文件??????213522??2013-03-31?22:54??Matlab_Code_To_Classification_Citrus\20130331_214946_.jpg
?????文件??????203877??2013-03-19?09:55??Matlab_Code_To_Classification_Citrus\citrus-icon.png
?????文件?????????897??2012-03-03?12:16??Matlab_Code_To_Classification_Citrus\Function_ColorToGray.m
?????文件????????2008??2013-03-16?06:58??Matlab_Code_To_Classification_Citrus\Function_MaxFilterBiner_.m
?????文件?????????175??2011-04-19?22:29??Matlab_Code_To_Classification_Citrus\Index2XY.m
............此處省略4個文件信息