【Matlab】运动目标检测之“帧差法”

videoObj = VideoReader('4.avi');%读视频文件
nframes = get(videoObj, 'NumberOfFrames');%获取视频文件帧个数
for k =  : nframes
    currentFrame = read(videoObj, k);%读取第i帧
    subplot(,,);%创建图像显示窗口并获取第一个窗口句柄
    imshow(currentFrame); % Convert to grayscale.
    grayFrame = rgb2gray(currentFrame);%灰度化
    if(k==)
        grayFrame_1 = grayFrame;
    end
    difgrayFrame= grayFrame - grayFrame_1;%邻帧差
    grayFrame_1 = grayFrame;
    subplot(,,);
    imshow(difgrayFrame);
end

文件位置D:\下载相关\搜狗高速下载\程序与示例视频\next