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matlab讀取視訊VideoReader類

video = read(obj, 1);         % first frame only 獲取第一幀 video = read(obj, [1 10]);    % first 10 frames 獲取前10幀 video = read(obj, Inf);       % last frame only 獲取最後一幀 video = read(obj, [50 Inf]);  % frame 50 thru end 獲取第50幀之後的幀