smoke detection, fix problem
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hi, this code must detect smoke in the video and alarm will active, but the warning active for all videos, even the videos do not smoke. how do i fix it?
vid=uigetfile;
vid=mmreader(vid);
numFrames = vid.NumberOfFrames;
n=numFrames;
for i =1:n
frames = read(vid,i);
imwrite(frames,[int2str(i) '.jpg']);
end
frm1=rgb2gray(imread('1.jpg'));
for j=1:n
frm2=([num2str(j),'.jpg']);
p1=(imread(frm2,'jpg'));
p2=(rgb2gray(p1));
res=abs(double(p2)-double(frm1));
astn=get(handles.edt,'string');
astn=str2num(astn);
ast=res>astn;
bw=bwareaopen(ast,500);
R=p1(:,:,1);
G=p1(:,:,2);
B=p1(:,:,3);
xr=R(bw);
r=mean(xr);
xg=G(bw);
g=mean(xg);
xb=B(bw);
b=mean(xb);
avg=(r+g+b)/3;
S=(abs(r-avg)+abs(b-avg)+abs(g-avg))/3;
if (S<astn)
set(handles.text1,'visible','on');
beep
subplot(211)
h1 = image;
axis ij
imshow(p1,h1);
pause(0.5);
set(handles.text1,'visible','off');
pause(0.5);
end;
end
回答（1 个）
Tawakal
2013-10-13
0 个投票
Dear Ehsan I think it will be good if you post the videos that has been used in the code as well along with the complete code (means GUI).Only after that anyone will be able to help you.
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在 帮助中心 和 File Exchange 中查找有关 Video Formats and Interfaces 的更多信息
2019-6-25
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