hank’s notebook

##macOs sierra下编译OpenCV

###编译

• 到官网下载OpenCV Sources,我下载的是2.4.9
• 安装cmake，方法可以百度
• 解压OpenCV-2.4.9.zip,执行如下步骤编译
  1. cd OpenCV-2.4.9
  2. mkdir release
  3. cd release
  4. cmake -G “Unix Makefiles” ..
  5. make
  6. sudo make install

###编译中可能会遇到的问题
1.

XXX/cap_qtkit.mm:46:9: fatal error:

‘QTKit/QTKit.h‘ file not found

#import 

^

1 error generated.

make[2]: *** [modulesideoio/CMakeFiles/opencv_videoio.dir/src/cap_qtkit.mm.o] Error 1

make[1]: *** [modulesideoio/CMakeFiles/opencv_videoio.dir/all] Error 2

make: *** [all] Error 2

百度了下，大概是说mac系统升级后QTKit有改动，Opencv找不到QTKit.h。解决方法是：下载QTKit.zip,解压之后拷贝到opencv-2.4.9/modules/highgui/src中再make

2.

opencv-2.4.9/modules/legacy/src/calibfilter.cpp:98:9: error:
      comparison of array 'this->latestPoints' not equal to a null pointer is
      always true [-Werror,-Wtautological-pointer-compare]
    if (latestPoints != NULL)
        ^
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/Users/hebin/third_party/opencv-2.4.9/modules/legacy/src/calibfilter.cpp:532:9: error:
      address of array 'this->latestCounts' will always evaluate to 'true'
      [-Werror,-Wpointer-bool-conversion]
    if( latestCounts )
    ~~  ^





2 errors generated.

make[2]: *** [modules/legacy/CMakeFiles/opencv_legacy.dir/src/calibfilter.cpp.o] Error 1

make[1]: *** [modules/legacy/CMakeFiles/opencv_legacy.dir/all] Error 2

make: *** [all] Error 2


解决方法,根据网页上的修改opencv-2.4.9/modules/legacy/src/calibfilter.cpp代码，再编译即可

			
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