新人求助,matlab调用摄像头答:axis off 定义两个按钮控件 hb1 = uicontrol('Parent', hf, 'Units', 'Normalized','Position', [0.25 0.05 0.2 0.1], 'String', '预览', 'Callback', ['objRes = get(obj, ''VideoResolution'');' ...'nBands = get(obj, ''NumberOfBands'');' ...'hImage = image(...