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我使用此代碼作爲檢測視頻中手的膚色的起點。作爲我做的第一步,我使用imshow(segment)來顯示結果;在Matlab中使用函數。將二進制圖像顯示爲視頻的Matlab
這裏的代碼(網上查到)我不完全理解:
function SkinDetection()
obj = VideoReader('CloseupHandVid.mp4');
nframes = read(obj, inf);
nframes = get(obj, 'NumberOfFrames');
I = read(obj, 1);
for k = 1 : nframes
singleFrame = read(obj, k);
Skin(:,:,:,k) = singleFrame;
whos v
I=double(singleFrame);
[hue,s,v]=rgb2hsv(I);
cb = 0.148* I(:,:,1) - 0.291* I(:,:,2) + 0.439 * I(:,:,3) + 128;
cr = 0.439 * I(:,:,1) - 0.368 * I(:,:,2) -0.071 * I(:,:,3) + 128;
[w h]=size(I(:,:,1));
for i=1:w
for j=1:h
if 140<=cr(i,j) && cr(i,j)<=165 && 140<=cb(i,j) && cb(i,j)<=195 && 0.01<=hue(i,j) && hue(i,j)<=0.1
segment(i,j)=1;
else
segment(i,j)=0;
end
end
end
imshow(segment);
end
end
這裏是結果: segmented skin
我遇到的問題是,我不瞭解如何通過使用vision.VideoPlayer或vision.VideoDeployer將視頻的二進制圖像顯示爲視頻,所以我可以在本例中顯示皮膚檢測視頻旁邊的原始結果: