OpenCV文件编译及问题记录。
目前最新OpenCV官网发布最新版为3.4.0（2017年12月23日发布）。
下载地址：https://github.com/opencv/opencv/releases/tag/3.4.0 https://sourceforge.net/projects/opencvlibrary/
优点：方便快捷
配置环境变量
引入相应头文件、库文件、链接库
库目录，新增：
链接器-输入-附加依赖项，新增：
但想如此一劳永逸解决问题，需符合以下特点：你的VS版本是VC14（2015）或VC15（2017）。
由于我使用VS2013，因此无法使用该方法。（当然，可以自行下载VS2015的运行库）。
下载地址：https://cmake.org/download/
在Where is the source code中选择OpenCV解压目录，如：E:/opencv-3.4.0/opencv-3.4.0。
点击Configure，选择所需环境，如：Visual Studio 12 2013。进入漫长的等待。
第一次Configure后：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 General configuration for OpenCV 3.4.0 ===================================== Version control: unknown Platform: Timestamp: 2018-01-29T14:29:24Z Host: Windows 10.0.16299 AMD64 CMake: 3.10.2 CMake generator: Visual Studio 12 2013 CMake build tool: C:/Program Files (x86)/MSBuild/12.0/bin/MSBuild.exe MSVC: 1800 CPU/HW features: Baseline: SSE SSE2 requested: SSE2 Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX requested: SSE4_1 SSE4_2 AVX FP16 AVX2 SSE4_1 (3 files): + SSE3 SSSE3 SSE4_1 SSE4_2 (1 files): + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2 FP16 (2 files): + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX AVX (5 files): + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2 AVX C/C++: Built as dynamic libs?: YES C++11: YES C++ Compiler: C:/software/vs2013/VC/bin/cl.exe (ver 18.0.21005.1) C++ flags (Release): /DWIN32 /D_WINDOWS /W4 /GR /EHa /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:fast /arch:SSE /arch:SSE2 /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP12 /MD /O2 /Ob2 /DNDEBUG /Zi C++ flags (Debug): /DWIN32 /D_WINDOWS /W4 /GR /EHa /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:fast /arch:SSE /arch:SSE2 /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP12 /MDd /Zi /Ob0 /Od /RTC1 C Compiler: C:/software/vs2013/VC/bin/cl.exe C flags (Release): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:fast /arch:SSE /arch:SSE2 /MP12 /MD /O2 /Ob2 /DNDEBUG /Zi C flags (Debug): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:fast /arch:SSE /arch:SSE2 /MP12 /MDd /Zi /Ob0 /Od /RTC1 Linker flags (Release): /machine:X86 /INCREMENTAL:NO /debug Linker flags (Debug): /machine:X86 /debug /INCREMENTAL ccache: NO Precompiled headers: YES Extra dependencies: 3rdparty dependencies: OpenCV modules: To be built: calib3d core dnn features2d flann highgui imgcodecs imgproc ml objdetect photo python_bindings_generator shape stitching superres ts video videoio videostab Disabled: js world Disabled by dependency: - Unavailable: cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev java python2 python3 viz Applications: tests perf_tests apps Documentation: NO Non-free algorithms: NO Windows RT support: NO GUI: Win32 UI: YES VTK support: NO Media I/O: ZLib: build (ver 1.2.11) JPEG: build (ver 90) WEBP: build (ver encoder: 0x020e) PNG: build (ver 1.6.34) TIFF: build (ver 42 - 4.0.9) JPEG 2000: build (ver 1.900.1) OpenEXR: build (ver 1.7.1) Video I/O: Video for Windows: YES DC1394: NO FFMPEG: NO avcodec: NO avformat: NO avutil: NO swscale: NO avresample: NO GStreamer: NO DirectShow: YES Parallel framework: Concurrency Trace: YES (with Intel ITT) Other third-party libraries: Lapack: NO Eigen: NO Custom HAL: NO NVIDIA CUDA: NO OpenCL: YES (no extra features) Include path: E:/opencv-3.4.0/opencv-3.4.0/3rdparty/include/opencl/1.2 Link libraries: Dynamic load Python (for build): NO Java: ant: NO JNI: NO Java wrappers: NO Java tests: NO Matlab: NO Install to: E:/opencv-3.4.0/opencv-3.4.0/build/install ----------------------------------------------------------------- Configuring done
此时可能出现常见问题：
1 2 3 4 5 6 7 8 9 10 11 FFMPEG: Download: opencv_ffmpeg.dll CMake Warning at cmake/OpenCVDownload.cmake:190 (message): FFMPEG: Download failed: 28;"Timeout was reached" FFMPEG: Download: opencv_ffmpeg_64.dll CMake Warning at cmake/OpenCVDownload.cmake:190 (message): FFMPEG: Download failed: 28;"Timeout was reached" IPPICV: Download: ippicv_2017u3_win_ia32_general_20170822.zip CMake Warning at cmake/OpenCVDownload.cmake:190 (message): IPPICV: Download failed: 28;"Timeout was reached"
总之就是有文件下载不成功。根据CMake的提示，打开build下的CMakeDownloadLog.txt，上面写着：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 use_cache "E:/opencv-3.4.0/opencv-3.4.0/.cache" do_copy "opencv_ffmpeg.dll" "3ae76b105113d944984b2351c61e21c6" "https://raw.githubusercontent.com/opencv/opencv_3rdparty/66b1fed06cf3510235f367f96aa26da5cb234a15/ffmpeg/opencv_ffmpeg.dll" "E:/opencv-3.4.0/opencv-3.4.0/build/3rdparty/ffmpeg" #missing "E:/opencv-3.4.0/opencv-3.4.0/build/3rdparty/ffmpeg/opencv_ffmpeg.dll" #check_md5 "E:/opencv-3.4.0/opencv-3.4.0/.cache/ffmpeg/3ae76b105113d944984b2351c61e21c6-opencv_ffmpeg.dll" #mismatch_md5 "E:/opencv-3.4.0/opencv-3.4.0/.cache/ffmpeg/3ae76b105113d944984b2351c61e21c6-opencv_ffmpeg.dll" "299b46e2c4cf8047b0ef420c9a61c6ef" #delete "E:/opencv-3.4.0/opencv-3.4.0/.cache/ffmpeg/3ae76b105113d944984b2351c61e21c6-opencv_ffmpeg.dll" #cmake_download "E:/opencv-3.4.0/opencv-3.4.0/.cache/ffmpeg/3ae76b105113d944984b2351c61e21c6-opencv_ffmpeg.dll" "https://raw.githubusercontent.com/opencv/opencv_3rdparty/66b1fed06cf3510235f367f96aa26da5cb234a15/ffmpeg/opencv_ffmpeg.dll" do_copy "opencv_ffmpeg_64.dll" "cf3bb5bc9d393b022ea7a42eb63e794d" "https://raw.githubusercontent.com/opencv/opencv_3rdparty/66b1fed06cf3510235f367f96aa26da5cb234a15/ffmpeg/opencv_ffmpeg_64.dll" "E:/opencv-3.4.0/opencv-3.4.0/build/3rdparty/ffmpeg" #missing "E:/opencv-3.4.0/opencv-3.4.0/build/3rdparty/ffmpeg/opencv_ffmpeg_64.dll" #check_md5 "E:/opencv-3.4.0/opencv-3.4.0/.cache/ffmpeg/cf3bb5bc9d393b022ea7a42eb63e794d-opencv_ffmpeg_64.dll" #mismatch_md5 "E:/opencv-3.4.0/opencv-3.4.0/.cache/ffmpeg/cf3bb5bc9d393b022ea7a42eb63e794d-opencv_ffmpeg_64.dll" "3ab964d23e60d2b961737a8bb556bd45" #delete "E:/opencv-3.4.0/opencv-3.4.0/.cache/ffmpeg/cf3bb5bc9d393b022ea7a42eb63e794d-opencv_ffmpeg_64.dll" #cmake_download "E:/opencv-3.4.0/opencv-3.4.0/.cache/ffmpeg/cf3bb5bc9d393b022ea7a42eb63e794d-opencv_ffmpeg_64.dll" "https://raw.githubusercontent.com/opencv/opencv_3rdparty/66b1fed06cf3510235f367f96aa26da5cb234a15/ffmpeg/opencv_ffmpeg_64.dll" do_copy "ffmpeg_version.cmake" "ec59008da403fb18ab3c1ed66aed583b" "https://raw.githubusercontent.com/opencv/opencv_3rdparty/66b1fed06cf3510235f367f96aa26da5cb234a15/ffmpeg/ffmpeg_version.cmake" "E:/opencv-3.4.0/opencv-3.4.0/build/3rdparty/ffmpeg" #check_md5 "E:/opencv-3.4.0/opencv-3.4.0/build/3rdparty/ffmpeg/ffmpeg_version.cmake" #match_md5 "E:/opencv-3.4.0/opencv-3.4.0/build/3rdparty/ffmpeg/ffmpeg_version.cmake" "ec59008da403fb18ab3c1ed66aed583b" do_unpack "ippicv_2017u3_win_ia32_general_20170822.zip" "8a7680ae352c192de2e2e34936164bd0" "https://raw.githubusercontent.com/opencv/opencv_3rdparty/dfe3162c237af211e98b8960018b564bc209261d/ippicv/ippicv_2017u3_win_ia32_general_20170822.zip" "E:/opencv-3.4.0/opencv-3.4.0/build/3rdparty/ippicv" #check_md5 "E:/opencv-3.4.0/opencv-3.4.0/.cache/ippicv/8a7680ae352c192de2e2e34936164bd0-ippicv_2017u3_win_ia32_general_20170822.zip" #mismatch_md5 "E:/opencv-3.4.0/opencv-3.4.0/.cache/ippicv/8a7680ae352c192de2e2e34936164bd0-ippicv_2017u3_win_ia32_general_20170822.zip" "c7fcfb626b50daa8bd728b7598328455" #delete "E:/opencv-3.4.0/opencv-3.4.0/.cache/ippicv/8a7680ae352c192de2e2e34936164bd0-ippicv_2017u3_win_ia32_general_20170822.zip" #cmake_download "E:/opencv-3.4.0/opencv-3.4.0/.cache/ippicv/8a7680ae352c192de2e2e34936164bd0-ippicv_2017u3_win_ia32_general_20170822.zip" "https://raw.githubusercontent.com/opencv/opencv_3rdparty/dfe3162c237af211e98b8960018b564bc209261d/ippicv/ippicv_2017u3_win_ia32_general_20170822.zip"
可以看到文本中记录了下载链接，于是在浏览器中复制上述链接，自行下载好这几个文件到文本指向的路径中。https://raw.githubusercontent.com/opencv/opencv_3rdparty/66b1fed06cf3510235f367f96aa26da5cb234a15/ffmpeg/opencv_ffmpeg.dll https://raw.githubusercontent.com/opencv/opencv_3rdparty/66b1fed06cf3510235f367f96aa26da5cb234a15/ffmpeg/opencv_ffmpeg_64.dll http://www.atool.org/file_hash.php ，需要的是MD5 Hash。https://raw.githubusercontent.com/opencv/opencv_3rdparty/dfe3162c237af211e98b8960018b564bc209261d/ippicv/ippicv_2017u3_win_ia32_general_20170822.zip
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 # Binary branch name: ffmpeg/master_20171009 # Binaries were created for OpenCV: 8ac2c5d620b467d3f22802e96c88ddde6da707af set(FFMPEG_BINARIES_COMMIT "66b1fed06cf3510235f367f96aa26da5cb234a15") set(FFMPEG_FILE_HASH_BIN32 "3ae76b105113d944984b2351c61e21c6") set(FFMPEG_FILE_HASH_BIN64 "cf3bb5bc9d393b022ea7a42eb63e794d") set(FFMPEG_FILE_HASH_CMAKE "ec59008da403fb18ab3c1ed66aed583b") function(download_win_ffmpeg script_var) set(${script_var} "" PARENT_SCOPE) # set(ids BIN32 BIN64 CMAKE) # set(name_BIN32 "opencv_ffmpeg.dll") # set(name_BIN64 "opencv_ffmpeg_64.dll") # set(name_CMAKE "ffmpeg_version.cmake") # set(FFMPEG_DOWNLOAD_DIR "${OpenCV_BINARY_DIR}/3rdparty/ffmpeg") # set(status TRUE) # foreach(id ${ids}) # ocv_download(FILENAME ${name_${id}} # HASH ${FFMPEG_FILE_HASH_${id}} # URL # "$ENV{OPENCV_FFMPEG_URL}" # "${OPENCV_FFMPEG_URL}" # "https://raw.githubusercontent.com/opencv/opencv_3rdparty/${FFMPEG_BINARIES_COMMIT}/ffmpeg/" # DESTINATION_DIR ${FFMPEG_DOWNLOAD_DIR} # ID FFMPEG # RELATIVE_URL # STATUS res) # if(NOT res) # set(status FALSE) # endif() # endforeach() # if(status) # set(${script_var} "${FFMPEG_DOWNLOAD_DIR}/ffmpeg_version.cmake" PARENT_SCOPE) # endif() endfunction()
修改E:\opencv-3.4.0\opencv-3.4.0\3rdparty\ippicv中的ippicv.cmake，如下：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 function(download_ippicv root_var) # set(${root_var} "" PARENT_SCOPE) # # Commit SHA in the opencv_3rdparty repo # set(IPPICV_COMMIT "dfe3162c237af211e98b8960018b564bc209261d") # # Define actual ICV versions # if(APPLE) # set(OPENCV_ICV_PLATFORM "macosx") # set(OPENCV_ICV_PACKAGE_SUBDIR "ippicv_mac") # if(X86_64) # set(OPENCV_ICV_NAME "ippicv_2017u3_mac_intel64_general_20170822.tgz") # set(OPENCV_ICV_HASH "c1ebb5dfa5b7f54b0c44e1917805a463") # else() # set(OPENCV_ICV_NAME "ippicv_2017u3_mac_ia32_general_20170822.tgz") # set(OPENCV_ICV_HASH "49b05a669042753ae75895a445ebd612") # endif() # elseif((UNIX AND NOT ANDROID) OR (UNIX AND ANDROID_ABI MATCHES "x86")) # set(OPENCV_ICV_PLATFORM "linux") # set(OPENCV_ICV_PACKAGE_SUBDIR "ippicv_lnx") # if(X86_64) # set(OPENCV_ICV_NAME "ippicv_2017u3_lnx_intel64_general_20170822.tgz") # set(OPENCV_ICV_HASH "4e0352ce96473837b1d671ce87f17359") # else() # set(OPENCV_ICV_NAME "ippicv_2017u3_lnx_ia32_general_20170822.tgz") # set(OPENCV_ICV_HASH "dcdb0ba4b123f240596db1840cd59a76") # endif() # elseif(WIN32 AND NOT ARM) # set(OPENCV_ICV_PLATFORM "windows") # set(OPENCV_ICV_PACKAGE_SUBDIR "ippicv_win") # if(X86_64) # set(OPENCV_ICV_NAME "ippicv_2017u3_win_intel64_general_20170822.zip") # set(OPENCV_ICV_HASH "0421e642bc7ad741a2236d3ec4190bdd") # else() # set(OPENCV_ICV_NAME "ippicv_2017u3_win_ia32_general_20170822.zip") # set(OPENCV_ICV_HASH "8a7680ae352c192de2e2e34936164bd0") # endif() # else() # return() # endif() # set(THE_ROOT "${OpenCV_BINARY_DIR}/3rdparty/ippicv") # ocv_download(FILENAME ${OPENCV_ICV_NAME} # HASH ${OPENCV_ICV_HASH} # URL # "${OPENCV_IPPICV_URL}" # "$ENV{OPENCV_IPPICV_URL}" # "https://raw.githubusercontent.com/opencv/opencv_3rdparty/${IPPICV_COMMIT}/ippicv/" # DESTINATION_DIR "${THE_ROOT}" # ID IPPICV # STATUS res # UNPACK RELATIVE_URL) # if(res) # set(${root_var} "${THE_ROOT}/${OPENCV_ICV_PACKAGE_SUBDIR}" PARENT_SCOPE) # endif() endfunction()
再重新Configure两次，Generate一次，成功。
打开OpenCV.sln编译，debug-Win32调试器。
根据法一：
比较两张图片的不同之处。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 #include <cv.h> #include <highgui.h> #include <stdio.h> int main() { IplImage *pSrc = cvLoadImage("1.jpg", 1); CvSize size = cvSize(600, 376);//区域大小 cvSetImageROI(pSrc, cvRect(0, 0, size.width, size.height));//设置源图像ROI IplImage* pDest1 = cvCreateImage(size, pSrc->depth, pSrc->nChannels);//创建目标图像 cvCopy(pSrc, pDest1); //复制图像 cvResetImageROI(pDest1);//源图像用完后，清空ROI cvSaveImage("Image_1.jpg", pDest1);//保存目标图像 cvSetImageROI(pSrc, cvRect(0, 393, size.width, size.height));//设置源图像ROI IplImage* pDest2 = cvCreateImage(size, pSrc->depth, pSrc->nChannels);//创建目标图像 cvCopy(pSrc, pDest2); //复制图像 cvResetImageROI(pDest2);//源图像用完后，清空ROI cvSaveImage("Image_2.jpg", pDest2);//保存目标图像 IplImage *dst; dst = cvCreateImage(cvGetSize(pDest1), pDest1->depth, pDest1->nChannels); cvAbsDiff(pDest1, pDest2, dst); cvNamedWindow("Compare_Images", 1); cvShowImage("Compare_Images", dst); cvWaitKey(); return 0; }
以上程序转自http://blog.csdn.net/cooelf/article/details/24663097
可成功编译和运行，到此，基础环境算是磕磕绊绊搭建好了。
