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<p>您需要安装<code>v4l-utils</code>来设置网络摄像头。下面是关于从源代码安装opencv2.4的详细分步信息。<a href="http://jayrambhia.com/blog/install-opencv-2-4-in-ubuntu-12-04-precise-pangolin/" rel="nofollow">http://jayrambhia.com/blog/install-opencv-2-4-in-ubuntu-12-04-precise-pangolin/</a></p>