source：https://blog.csdn.net/qq_23097931/article/details/51108747 obj=VideoReader ('filename') obj_numberofframe=obj.NumberOfFrame; obj_height=obj.Height Read frame=read(obj), frame=read(obj,1); frame=read(obj,[1 10]) frame=read(obj,[1 inf]) imwrite imwrite(frame, strcat('filename.jpg), 'jpg') for k=1:15 frame=read(obj,k); imshow(frame); imwrite(frame,strcat('',num2str(k),'.jpg'), 'jpg')