smoke detection, fix problem

3 次查看（过去 30 天）
ehsan
ehsan 2013-9-2
评论： aisha khan 2019-6-25
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

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回答（1 个）

Tawakal
Tawakal 2013-10-13
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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