OpenCV在Ubuntu上的安装及《Learning OpenCV》书例编译

在Ubuntu 10.04上安装openCV很方便：#apt-get install opencv-doc libcv4 libhighgui4 libcvaux4 libcv-dev libcvaux-dev libhighgui-dev同时最好顺便把ffmpeg的开发文件也装上。然后编译《Learning OpenCV》一书的例子试一把，理论上把Makefile.txt改为Makefile然后make就行，但在我机子上有错误：1. "cvPyrSegmentation" undeclared identifier定义在 /usr/local/include/opencv2/legacy/legacy.hpp中，默认没include进来，把该头文件包含进来即可。2. "cvCalcOpticalFlowHS" undeclared identifier原因同上，也在legacy.hpp中。3. cvRand，cvRandInit，cvRandSetRange等函数undeclred identifier这些函数在 legacy/compat.hpp中，包含进来即可，然后链接时还要链接libopencv_legacy.so（-lopencv_legacy）。4. "CvDTreeParams::CvDTreeParams（...）" undefined reference链接时加-lopencv_ml去链接libopencv_ml库。