1 % MATLAB控制摄像头操作 2 3 % 获取本机中已经安装的硬件资源列表 4 imaqhwinfo 5 6 % 建立videoinput对象 7 obj = videoinput('winvideo'); 8 9 % 设置属性 10 set(obj, 'FramesPerTrigger', 1); 11 set(obj, 'TriggerRepeat', Inf); 12 13 % 建立界面 14 hf = figure('Units', 'Normalized', 'Menubar', 'None', ... 15 'NumberTitle', 'off', 'Name', '演示拍照系统'); 16 ha = axes('Parent', hf, 'Units', 'Normalized', ... 17 'Position', [.05 .2 .85 .7]); 18 axis off 19 hb1 = uicontrol('Parent', hf, 'Units', 'Normalized', ... 20 'Position', [.25 .05 .2 .1], 'String', '预览', ... 21 'Callback', ... 22 ['objRes = get(obj, ''VideoResolution'');' ... 23 'nBands = get(obj, ''NumberOfBands'');' ... 24 'hImage = image(zeros(objRes(2), objRes(1), nBands));' ... 25 'preview(obj, hImage);']); 26 hb2 = uicontrol('Parent', hf, 'Units', 'Normalized', ... 27 'Position', [.55 .05 .2 .1], 'String', '拍照', ... 28 'Callback', 'imwrite(getsnapshot(obj), ''im.jpg'')');