opencv例子（顯示圖片，YUV找人臉）

1 裝各種庫 yum install  gtk+-devel zlib-devel libtiff-devel libjpeg-devel libpng-devel gstreamer-devel libavc1394-devel libraw1394-devel libdc1394-devel jasper-devel jasper-utils  python-devel numpy gstre

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