It takes so long --> many frames

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Eliska Paulikova 2022-10-22

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链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1832968-it-takes-so-long-many-frames

评论： Sai 2023-2-27

vid=VideoReader("Pokus č 4. (1).avi")
while hasFrame(vid)
    frame=readFrame(vid);
            numberOfFrames = vid.NumFrames;
        framesToRead = 1: 4000 : numberOfFrames;
        for k = 1 : length(framesToRead)
            % Extract the frame from the movie structure.
            thisFrame = read(vid, framesToRead(k));
            gray=im2gray(thisFrame);
            nHood=true(3); 
            Rpokus=rangefilt(gray,nHood);
            
            Rpokus=medfilt2(Rpokus,[7 7]);
            
            Rpokus=imfill(Rpokus,"holes");
            
            
            
            SE=strel("disk",6);
            Rpokus=imclose(Rpokus,SE);
            
            
            Rpokus=imbinarize(Rpokus);
            
            Rpokus = bwareaopen(Rpokus, 200); %vše tvořený méně než "n" pixely se odstraní
            
            
            Rpokus=imclearborder(Rpokus);
            
            
            clear edge
            Rpokus=edge(Rpokus);
            imshow(Rpokus)
        end
        pause(0.1)
end

Hi, I have a problem, I have video with more than 100 000 frames. But it still take a long time and also it does not work at all a mean the segmentation. Please help