How can I display videos without movie()?

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Enes Alkan
Enes Alkan 2020-4-2
评论： Image Analyst 2020-5-3
Hello, first of all I am sorry for my English.
I am making a project on GUI. It is video denoising. First video is original video, second one is noised video, third one is denoised video. When I use this code, filtered videos get longer. It is like a slow motion video. Let's say that original video is 7 seconds. Noisy video is more than that. And also filtered video is longer than original video.
I can solve it using movie(). But I want to compare videos. I want to see all of them in the screen. I don't want to use figure to create a new window.
But movie() always waits for the playing to finish.
Here is my gui.fig
% Here is my original video
v=VideoReader(filename);
H=v.Height;
W=v.Width;
s1=struct('cdata', zeros(H,W,3, 'uint8'), 'colormap', []);
k=1;
axes1=handles.axes1;
while hasFrame(v)
s1(k).cdata=readFrame(v);
image(s1(k).cdata,'Parent',axes1);
pause(1/v.FrameRate);
k=k+1;
end
% Here is my noisy video
value= get(hObject,'Value');
s2=struct('cdata', zeros(H,W,3, 'uint8'), 'colormap', []);
axes2=handles.axes2;
if value==2
for i=1:k-1
s2(i).cdata=tuzbiberGurultusu(s1(i).cdata);
image(s2(i).cdata,'Parent',axes2);
pause(1/v.FrameRate);
end
end
% Here is my filtered video
value= get(hObject,'Value');
s3=struct('cdata', zeros(H,W,3, 'uint8'), 'colormap', []);
axes3=handles.axes3;
if value==2
for i=1:k-1
h=fspecial('average',3);
s3(i).cdata=imfilter(s2(i).cdata,h);
image(s3(i).cdata,'Parent',axes3);
pause(1/v.FrameRate);
end
end

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回答（2 个）

Harshendra Shah
Harshendra Shah 2020-4-9
Image Analyst
Image Analyst 2020-5-3
If you want to have the OS play the movie, try calling winopen(filename) (Windows only), or system().
  2 个评论
Enes Alkan
Enes Alkan 2020-5-3
So I should write video to file and then I should call winopen() ?
Image Analyst
Image Analyst 2020-5-3
You can do that if you want. Another way wuld be to make a new movie where you stitch together the frames from the two movies side by side. That way they'll always by in sync.

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