Error using VideoReader/hasFrame Method 'hasFrame' is not defined for class 'VideoReader' or is removed from MATLAB's search path.

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DiegoIEN Gutiérrez 2016-3-10

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/272645-error-using-videoreader-hasframe-method-hasframe-is-not-defined-for-class-videoreader-or-is-remo

评论： AMEYA KONKAR 2020-12-1

Hello I can't get the frames from an avi file, I don't know what's happen. the code is

%%crea directorio donde guardar
workingDir = tempname;
mkdir(workingDir)
mkdir(workingDir,'images')
VideoName = VideoReader('vid1.avi');%%%Acá reemplazar por el nombre real del video con extensión .avi
ii = 1;  %%%contador                                                                 
while hasFrame(VideoName)
   img = readFrame(VideoName); %%%lee el cuadro                                                  
   filename = [sprintf('%03d',ii) '.png']; %%%crea nombre y fija el                    formato Puede ser .jpg,.bmp, etc                                   
   fullname = fullfile(workingDir,'images',filename);  %%%crea directorio                         
   imwrite(img,fullname) %%%Graba la imagen a el formato elegido(img1.jpg, img2.jpg, etc.)                                                   
   imwrite(img, sprintf('captured%.3d.png', ii));
   ii = ii+1;
end