照片人臉檢測(cè)MATLAB代碼

1、.% 載入圖像Img = imread(star1.jpg);if ndims(Img) = 3I=rgb2gray(Img);elseI = Img;endBW = im2bw(I, graythresh(I); %二值化figure;subplot(2, 2, 1); imshow(Img);title( 原圖像 , FontWeight, Bold);subplot(2, 2, 2); imshow(Img);title( 網(wǎng)格標(biāo)記圖像, FontWeight, Bold);hold on;xt, yt = meshgrid(round(linspace(1, size(I, 1), 1

2、0), .round(linspace(1, size(I, 2), 10);mesh(yt, xt, zeros(size(xt), FaceColor, .None, LineWidth, 3, .EdgeColor, r);subplot(2, 2, 3); imshow(BW);title( 二值圖像 , FontWeight, Bold);n1, n2 = size(BW);r = floor(n1/10); % 分成 10 塊，行c = floor(n2/10); % 分成 10 塊，列x1 = 1; x2 = r; % 對(duì)應(yīng)行初始化s = r*c; % 塊面積for i = 1:

3、10y1 = 1; y2 = c; % 對(duì)應(yīng)列初始化for j = 1:10if (y2=9*c) | (x1=1 | x2=r*10)% 如果是在四周區(qū)域loc = find(BW(x1:x2, y1:y2)=0);p, q = size(loc);pr = p/s*100; %黑色像素所占的比例數(shù)if pr mx & (Bd(k, 3)/Bd(k, 4)1.8% 如果滿足面積塊大，而且寬 / 高 1.8 mx = p;j = k;endendsubplot(2, 2, 4);imshow(I); hold on;rectangle(Position, Bd(j, :), .EdgeColo

4、r, r, LineWidth, 3);title( 標(biāo)記圖像 , FontWeight, Bold);if ndims(Img) = 3I=rgb2gray(Img);elseI = Img;endBW = im2bw(I, graythresh(I); %二值化figure;subplot(2, 2, 1); imshow(Img);title( 原圖像 , FontWeight, Bold);subplot(2, 2, 2); imshow(Img);title( 網(wǎng)格標(biāo)記圖像, FontWeight, Bold);hold on;xt, yt = meshgrid(round(lins

5、pace(1, size(I, 1), 10), .round(linspace(1, size(I, 2), 10);mesh(yt, xt, zeros(size(xt), FaceColor, .None, LineWidth, 3, .EdgeColor, r);subplot(2, 2, 3); imshow(BW);title( 二值圖像 , FontWeight, Bold);n1, n2 = size(BW);r = floor(n1/10); % 分成 10 塊，行c = floor(n2/10); % 分成 10 塊，列x1 = 1; x2 = r; % 對(duì)應(yīng)行初始化.s = r*c; % 塊面積for i = 1:10y1 = 1; y2 = c; % 對(duì)應(yīng)列初始化for j = 1:10if (y2=9*c) | (x1=1 | x2=r*10)% 如果是在四周區(qū)域loc = find(BW(x1:x2, y1:y2)=0);p, q = size(loc);pr = p/s*100; %黑色像素所占的比例數(shù)if pr mx & (Bd(k, 3)/Bd(k, 4)1.8% 如果滿足面積塊大，而且寬 / 高 1.8 mx = p;j = k;endendsubplot(2, 2, 4);imshow(I); hold on