MyYuanLaiPic = imread('e:/image/matlab/darkMouse.jpg');%读åRGBæ ¼å¼çå¾å
MyFirstGrayPic = rgb2gray(MyYuanLaiPic);%ç¨å·²æçå½æ°è¿è¡RGBå°ç°åº¦å¾åç转æ¢
[rows , cols , colors] = size(MyYuanLaiPic);%å¾å°åæ¥å¾åçç©éµçåæ°
MidGrayPic = zeros(rows , cols);%ç¨å¾å°çåæ°å建ä¸ä¸ªå
¨é¶çç©éµï¼è¿ä¸ªç©éµç¨æ¥åå¨ç¨ä¸é¢çæ¹æ³äº§ççç°åº¦å¾å
MidGrayPic = uint8(MidGrayPic);%å°å建çå
¨é¶ç©éµè½¬å为uint8æ ¼å¼ï¼å 为ç¨ä¸é¢çè¯å¥å建ä¹åå¾åæ¯doubleåç
for i = 1:rows
for j = 1:cols
sum = 0;
for k = 1:colors
sum = sum + MyYuanLaiPic(i , j , k) / 3;%è¿è¡è½¬åçå
³é®å
¬å¼ï¼sumæ¯æ¬¡é½å 为åé¢çæ°åèä¸è½è¶
è¿255
end
MidGrayPic(i , j) = sum;
end
end
imwrite(MidGrayPic , 'E:/image/matlab/DarkMouseGray.png' , 'png');
%æ¾ç¤ºåæ¥çRGBå¾å
figure(1);
imshow(MyYuanLaiPic);
%æ¾ç¤ºç»è¿ç³»ç»å½æ°è¿ç®è¿çç°åº¦å¾å
figure(2);
imshow(MyFirstGrayPic);
%æ¾ç¤ºè½¬åä¹åçç°åº¦å¾å
figure(3);
imshow(MidGrayPic);
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