opencv3.2.0+contrib+cmake3.9.0的编译

在编译过程中遇到很多问题，记录下来以防不测
Thanks to：http://blog.csdn.net/u012462822/article/details/49100025；
http://blog.csdn.net/yiyuehuan/article/details/52951574；

1.首先上github下载相对应得源码：
opencv-3.2.0：https://github.com/opencv/opencv/tree/3.2.0
opencv-3.2.0-contrib：https://github.com/opencv/opencv_contrib/tree/3.2.0
把下载的源码解压到同一个文件夹下，同时建立一个build文件夹

2.cmake
打开cmake-gui选择源码文件夹和工程目录文件夹如下：

Configure：

选择vs版本和编译方式，点击finish

tips:
这里会遇到ffmpeg和ippcv失败的问题，手动下载好ffmpeg和ippcv配置即可
下载地址：https://github.com/opencv/opencv_3rdparty/branches/all

ffmepg：把解压缩得到的opencv_ffmpeg.dll 、opencv_ffmepg_64.dll 、ffmpeg_version.cmake放到D:\opencv320\opencv-3.2.0\3rdparty\ffmpeg（对应文件夹）中

修改ffmpeg.cmake为：

message(STATUS "FFMPEG: Package successfully downloaded")include(${CMAKE_CURRENT_LIST_DIR}/ffmpeg_version.cmake)

ippcv：在D:\opencv320\opencv-3.2.0\3rdparty\ippicv中建立unpack文件夹，把解压缩得到的ippcv文件夹放入unpack中

修改downloader.cmake为：

## The script downloads ICV package## On return this will define:# OPENCV_ICV_PATH - path to unpacked downloaded package#function(_icv_downloader)  # Commit SHA in the opencv_3rdparty repo  set(IPPICV_BINARIES_COMMIT "81a676001ca8075ada498583e4166079e5744668")  # Define actual ICV versions  if(APPLE)    set(OPENCV_ICV_PACKAGE_NAME "ippicv_macosx_20151201.tgz")    set(OPENCV_ICV_PACKAGE_HASH "4ff1fde9a7cfdfe7250bfcd8334e0f2f")    set(OPENCV_ICV_PLATFORM "macosx")    set(OPENCV_ICV_PACKAGE_SUBDIR "/ippicv_osx")  elseif(UNIX)    if(ANDROID AND NOT (ANDROID_ABI STREQUAL x86 OR ANDROID_ABI STREQUAL x86_64))      return()    endif()    set(OPENCV_ICV_PACKAGE_NAME "ippicv_linux_20151201.tgz")    set(OPENCV_ICV_PACKAGE_HASH "808b791a6eac9ed78d32a7666804320e")    set(OPENCV_ICV_PLATFORM "linux")    set(OPENCV_ICV_PACKAGE_SUBDIR "/ippicv_lnx")  elseif(WIN32 AND NOT ARM)    set(OPENCV_ICV_PACKAGE_NAME "ippicv_windows_20151201.zip")    set(OPENCV_ICV_PACKAGE_HASH "04e81ce5d0e329c3fbc606ae32cad44d")    set(OPENCV_ICV_PLATFORM "windows")    set(OPENCV_ICV_PACKAGE_SUBDIR "/ippicv_win")  else()    return() # Not supported  endif()  set(OPENCV_ICV_UNPACK_PATH "${CMAKE_CURRENT_LIST_DIR}/unpack")  set(OPENCV_ICV_PATH "${OPENCV_ICV_UNPACK_PATH}${OPENCV_ICV_PACKAGE_SUBDIR}")  message(STATUS "ICV: Package successfully downloaded")  set(OPENCV_ICV_PATH "${OPENCV_ICV_PATH}" PARENT_SCOPE)endfunction()_icv_downloader()

添加contrib模块：找到OPENCV_EXTRA_MOUDULE_PATH,选择contrib文件夹下的modules文件夹

generating done;
tips:
不添加contrib模块可选择BUILD_opencv_world，生成时只生成一个opencv_world_320的dll和lib文件，方便添加库文件；
添加contrib模块编译不能选择BUILD_opencv_world,否则会出错；

3.编译opencv
点击cmake的Open Project打开工程
首先在dubug模式下生成整个工程，然后单独生成CMakeTargets下的install，然后在release模式下生成整个工程，再单独生成install，完成opencv的编译；

最后生成包含所有的头文件、lib文件与dll文件的文件夹install；

编译完成，尽情享用吧。