opencv 学习: 01 ubuntu20.04 下 opencv 4.12.0 源码编译
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环境：
- ubuntu 20.04
- gcc 9.4.0
- cmake 3.16.3
- opencv 4.12.0
目的：
在ubuntu 20.04下，采用的源码编译搭建Opencv的开发环境，用于编写相关的图像处理程序。
1. 安装编译工具，下载源码
# 安装编译工具依赖
$ apt install cmake g++ unzip
# 安装源码依赖
# gtk GTK支持(图形界面库) 是 cv::imshow 显示图片等窗口用的控件库
$ sudo apt install -y libgtk2.0-dev
#下载源码
$ wget -O opencv.zip https://github.com/opencv/opencv/archive/4.x.zip
# 如果按照默认的直接编译不安装libgtk2.0-dev ，在调用cv::imshow("window",img) 显示图片的时候，会报如下错误：
terminate called after throwing an instance of 'cv::Exception'
what(): OpenCV(4.12.0) /mnt/c/mine/image_processing/opencv-4.12.0/modules/highgui/src/window.cpp:1301: error: (-2:Unspecified error) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Cocoa support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function 'cvShowImage'
2.编译
$ cd opencv-4.12.0/
$ cmake -B build -DCMAKE_INSTALL_PREFIX=./4.12_install
其它的教程里，有很多其它图片等依赖库的安装。这里暂时没有，等后续有什么影响，涉及到了，再回过头，去处理。
完全让cmake去决定默认的依赖库和安装。
以下是camke配置日志：
-- 'Release' build type is used by default. Use CMAKE_BUILD_TYPE to specify build type (Release or Debug)
-- The CXX compiler identification is GNU 9.4.0
-- The C compiler identification is GNU 9.4.0
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- ocv_init_download: OpenCV source tree is not fetched as git repository. 3rdparty resources will be downloaded from github.com by default.
-- Detected processor: x86_64
-- Found PythonInterp: /usr/bin/python3 (found suitable version "3.8.10", minimum required is "3.2")
-- Found PythonLibs: /usr/lib/x86_64-linux-gnu/libpython3.8.so (found suitable exact version "3.8.10")
-- Looking for ccache - not found
-- Performing Test HAVE_CXX_FSIGNED_CHAR
-- Performing Test HAVE_CXX_FSIGNED_CHAR - Success
-- Performing Test HAVE_C_FSIGNED_CHAR
-- Performing Test HAVE_C_FSIGNED_CHAR - Success
-- Performing Test HAVE_CXX_W
-- Performing Test HAVE_CXX_W - Success
-- Performing Test HAVE_C_W
-- Performing Test HAVE_C_W - Success
-- Performing Test HAVE_CXX_WALL
-- Performing Test HAVE_CXX_WALL - Success
-- Performing Test HAVE_C_WALL
-- Performing Test HAVE_C_WALL - Success
-- Performing Test HAVE_CXX_WRETURN_TYPE
-- Performing Test HAVE_CXX_WRETURN_TYPE - Success
-- Performing Test HAVE_C_WRETURN_TYPE
-- Performing Test HAVE_C_WRETURN_TYPE - Success
-- Performing Test HAVE_CXX_WNON_VIRTUAL_DTOR
-- Performing Test HAVE_CXX_WNON_VIRTUAL_DTOR - Success
-- Performing Test HAVE_C_WNON_VIRTUAL_DTOR
-- Performing Test HAVE_C_WNON_VIRTUAL_DTOR - Failed
-- Performing Test HAVE_CXX_WADDRESS
-- Performing Test HAVE_CXX_WADDRESS - Success
-- Performing Test HAVE_C_WADDRESS
-- Performing Test HAVE_C_WADDRESS - Success
-- Performing Test HAVE_CXX_WSEQUENCE_POINT
-- Performing Test HAVE_CXX_WSEQUENCE_POINT - Success
-- Performing Test HAVE_C_WSEQUENCE_POINT
-- Performing Test HAVE_C_WSEQUENCE_POINT - Success
-- Performing Test HAVE_CXX_WFORMAT
-- Performing Test HAVE_CXX_WFORMAT - Success
-- Performing Test HAVE_C_WFORMAT
-- Performing Test HAVE_C_WFORMAT - Success
-- Performing Test HAVE_CXX_WFORMAT_SECURITY
-- Performing Test HAVE_CXX_WFORMAT_SECURITY - Success
-- Performing Test HAVE_C_WFORMAT_SECURITY
-- Performing Test HAVE_C_WFORMAT_SECURITY - Success
-- Performing Test HAVE_CXX_WMISSING_DECLARATIONS
-- Performing Test HAVE_CXX_WMISSING_DECLARATIONS - Success
-- Performing Test HAVE_C_WMISSING_DECLARATIONS
-- Performing Test HAVE_C_WMISSING_DECLARATIONS - Success
-- Performing Test HAVE_CXX_WMISSING_PROTOTYPES
-- Performing Test HAVE_CXX_WMISSING_PROTOTYPES - Failed
-- Performing Test HAVE_C_WMISSING_PROTOTYPES
-- Performing Test HAVE_C_WMISSING_PROTOTYPES - Success
-- Performing Test HAVE_CXX_WSTRICT_PROTOTYPES
-- Performing Test HAVE_CXX_WSTRICT_PROTOTYPES - Failed
-- Performing Test HAVE_C_WSTRICT_PROTOTYPES
-- Performing Test HAVE_C_WSTRICT_PROTOTYPES - Success
-- Performing Test HAVE_CXX_WUNDEF
-- Performing Test HAVE_CXX_WUNDEF - Success
-- Performing Test HAVE_C_WUNDEF
-- Performing Test HAVE_C_WUNDEF - Success
-- Performing Test HAVE_CXX_WINIT_SELF
-- Performing Test HAVE_CXX_WINIT_SELF - Success
-- Performing Test HAVE_C_WINIT_SELF
-- Performing Test HAVE_C_WINIT_SELF - Success
-- Performing Test HAVE_CXX_WPOINTER_ARITH
-- Performing Test HAVE_CXX_WPOINTER_ARITH - Success
-- Performing Test HAVE_C_WPOINTER_ARITH
-- Performing Test HAVE_C_WPOINTER_ARITH - Success
-- Performing Test HAVE_CXX_WSHADOW
-- Performing Test HAVE_CXX_WSHADOW - Success
-- Performing Test HAVE_C_WSHADOW
-- Performing Test HAVE_C_WSHADOW - Success
-- Performing Test HAVE_CXX_WSIGN_PROMO
-- Performing Test HAVE_CXX_WSIGN_PROMO - Success
-- Performing Test HAVE_C_WSIGN_PROMO
-- Performing Test HAVE_C_WSIGN_PROMO - Failed
-- Performing Test HAVE_CXX_WUNINITIALIZED
-- Performing Test HAVE_CXX_WUNINITIALIZED - Success
-- Performing Test HAVE_C_WUNINITIALIZED
-- Performing Test HAVE_C_WUNINITIALIZED - Success
-- Performing Test HAVE_CXX_WSUGGEST_OVERRIDE
-- Performing Test HAVE_CXX_WSUGGEST_OVERRIDE - Success
-- Performing Test HAVE_C_WSUGGEST_OVERRIDE
-- Performing Test HAVE_C_WSUGGEST_OVERRIDE - Failed
-- Performing Test HAVE_CXX_WNO_DELETE_NON_VIRTUAL_DTOR
-- Performing Test HAVE_CXX_WNO_DELETE_NON_VIRTUAL_DTOR - Success
-- Performing Test HAVE_C_WNO_DELETE_NON_VIRTUAL_DTOR
-- Performing Test HAVE_C_WNO_DELETE_NON_VIRTUAL_DTOR - Failed
-- Performing Test HAVE_CXX_WNO_UNNAMED_TYPE_TEMPLATE_ARGS
-- Performing Test HAVE_CXX_WNO_UNNAMED_TYPE_TEMPLATE_ARGS - Failed
-- Performing Test HAVE_C_WNO_UNNAMED_TYPE_TEMPLATE_ARGS
-- Performing Test HAVE_C_WNO_UNNAMED_TYPE_TEMPLATE_ARGS - Failed
-- Performing Test HAVE_CXX_WNO_COMMENT
-- Performing Test HAVE_CXX_WNO_COMMENT - Success
-- Performing Test HAVE_C_WNO_COMMENT
-- Performing Test HAVE_C_WNO_COMMENT - Success
-- Performing Test HAVE_CXX_WIMPLICIT_FALLTHROUGH_3
-- Performing Test HAVE_CXX_WIMPLICIT_FALLTHROUGH_3 - Success
-- Performing Test HAVE_C_WIMPLICIT_FALLTHROUGH_3
-- Performing Test HAVE_C_WIMPLICIT_FALLTHROUGH_3 - Success
-- Performing Test HAVE_CXX_WNO_STRICT_OVERFLOW
-- Performing Test HAVE_CXX_WNO_STRICT_OVERFLOW - Success
-- Performing Test HAVE_C_WNO_STRICT_OVERFLOW
-- Performing Test HAVE_C_WNO_STRICT_OVERFLOW - Success
-- Performing Test HAVE_CXX_FDIAGNOSTICS_SHOW_OPTION
-- Performing Test HAVE_CXX_FDIAGNOSTICS_SHOW_OPTION - Success
-- Performing Test HAVE_C_FDIAGNOSTICS_SHOW_OPTION
-- Performing Test HAVE_C_FDIAGNOSTICS_SHOW_OPTION - Success
-- Performing Test HAVE_CXX_PTHREAD
-- Performing Test HAVE_CXX_PTHREAD - Success
-- Performing Test HAVE_C_PTHREAD
-- Performing Test HAVE_C_PTHREAD - Success
-- Performing Test HAVE_CXX_FOMIT_FRAME_POINTER
-- Performing Test HAVE_CXX_FOMIT_FRAME_POINTER - Success
-- Performing Test HAVE_C_FOMIT_FRAME_POINTER
-- Performing Test HAVE_C_FOMIT_FRAME_POINTER - Success
-- Performing Test HAVE_CXX_FFUNCTION_SECTIONS
-- Performing Test HAVE_CXX_FFUNCTION_SECTIONS - Success
-- Performing Test HAVE_C_FFUNCTION_SECTIONS
-- Performing Test HAVE_C_FFUNCTION_SECTIONS - Success
-- Performing Test HAVE_CXX_FDATA_SECTIONS
-- Performing Test HAVE_CXX_FDATA_SECTIONS - Success
-- Performing Test HAVE_C_FDATA_SECTIONS
-- Performing Test HAVE_C_FDATA_SECTIONS - Success
-- Performing Test HAVE_CPU_SSE_SUPPORT (check file: cmake/checks/cpu_sse.cpp)
-- Performing Test HAVE_CPU_SSE_SUPPORT - Success
-- Performing Test HAVE_CPU_SSE2_SUPPORT (check file: cmake/checks/cpu_sse2.cpp)
-- Performing Test HAVE_CPU_SSE2_SUPPORT - Success
-- Performing Test HAVE_CPU_SSE3_SUPPORT (check file: cmake/checks/cpu_sse3.cpp)
-- Performing Test HAVE_CPU_SSE3_SUPPORT - Failed
-- Performing Test HAVE_CXX_MSSE3 (check file: cmake/checks/cpu_sse3.cpp)
-- Performing Test HAVE_CXX_MSSE3 - Success
-- Performing Test HAVE_CXX_MSSSE3 (check file: cmake/checks/cpu_ssse3.cpp)
-- Performing Test HAVE_CXX_MSSSE3 - Success
-- Performing Test HAVE_CXX_MSSE4_1 (check file: cmake/checks/cpu_sse41.cpp)
-- Performing Test HAVE_CXX_MSSE4_1 - Success
-- Performing Test HAVE_CXX_MPOPCNT (check file: cmake/checks/cpu_popcnt.cpp)
-- Performing Test HAVE_CXX_MPOPCNT - Success
-- Performing Test HAVE_CXX_MSSE4_2 (check file: cmake/checks/cpu_sse42.cpp)
-- Performing Test HAVE_CXX_MSSE4_2 - Success
-- Performing Test HAVE_CXX_MAVX (check file: cmake/checks/cpu_avx.cpp)
-- Performing Test HAVE_CXX_MAVX - Success
-- Performing Test HAVE_CXX_MF16C (check file: cmake/checks/cpu_fp16.cpp)
-- Performing Test HAVE_CXX_MF16C - Success
-- Performing Test HAVE_CXX_MAVX2 (check file: cmake/checks/cpu_avx2.cpp)
-- Performing Test HAVE_CXX_MAVX2 - Success
-- Performing Test HAVE_CXX_MFMA
-- Performing Test HAVE_CXX_MFMA - Success
-- Performing Test HAVE_CXX_MAVX512F (check file: cmake/checks/cpu_avx512.cpp)
-- Performing Test HAVE_CXX_MAVX512F - Success
-- Performing Test HAVE_CXX_MAVX512F_MAVX512CD (check file: cmake/checks/cpu_avx512common.cpp)
-- Performing Test HAVE_CXX_MAVX512F_MAVX512CD - Success
-- Performing Test HAVE_CXX_MAVX512F_MAVX512CD_MAVX512VL_MAVX512BW_MAVX512DQ (check file: cmake/checks/cpu_avx512skx.cpp)
-- Performing Test HAVE_CXX_MAVX512F_MAVX512CD_MAVX512VL_MAVX512BW_MAVX512DQ - Success
-- Performing Test HAVE_CPU_BASELINE_FLAGS
-- Performing Test HAVE_CPU_BASELINE_FLAGS - Success
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_SSE4_1
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_SSE4_1 - Success
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_SSE4_2
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_SSE4_2 - Success
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX - Success
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_FP16
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_FP16 - Success
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX2
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX2 - Success
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX512_SKX
-- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX512_SKX - Success
-- Performing Test HAVE_CXX_FVISIBILITY_HIDDEN
-- Performing Test HAVE_CXX_FVISIBILITY_HIDDEN - Success
-- Performing Test HAVE_C_FVISIBILITY_HIDDEN
-- Performing Test HAVE_C_FVISIBILITY_HIDDEN - Success
-- Performing Test HAVE_CXX_FVISIBILITY_INLINES_HIDDEN
-- Performing Test HAVE_CXX_FVISIBILITY_INLINES_HIDDEN - Success
-- Performing Test HAVE_C_FVISIBILITY_INLINES_HIDDEN
-- Performing Test HAVE_C_FVISIBILITY_INLINES_HIDDEN - Failed
-- Performing Test HAVE_LINK_AS_NEEDED
-- Performing Test HAVE_LINK_AS_NEEDED - Success
-- Performing Test HAVE_LINK_NO_UNDEFINED
-- Performing Test HAVE_LINK_NO_UNDEFINED - Success
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for posix_memalign
-- Looking for posix_memalign - found
-- Looking for malloc.h
-- Looking for malloc.h - found
-- Looking for memalign
-- Looking for memalign - found
-- Looking for getauxval
-- Looking for getauxval - found
-- Looking for elf_aux_info
-- Looking for elf_aux_info - not found
-- Check if the system is big endian
-- Searching 16 bit integer
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of unsigned short
-- Check size of unsigned short - done
-- Using unsigned short
-- Check if the system is big endian - little endian
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found suitable version "1.2.11", minimum required is "1.2.3")
-- Could NOT find AVIF (missing: AVIF_LIBRARY AVIF_INCLUDE_DIR)
-- Could NOT find JPEG (missing: JPEG_LIBRARY JPEG_INCLUDE_DIR)
-- Performing Test HAVE_C_WNO_UNUSED_PARAMETER
-- Performing Test HAVE_C_WNO_UNUSED_PARAMETER - Success
-- Performing Test HAVE_C_WNO_SIGN_COMPARE
-- Performing Test HAVE_C_WNO_SIGN_COMPARE - Success
-- Performing Test HAVE_C_WNO_SHORTEN_64_TO_32
-- Performing Test HAVE_C_WNO_SHORTEN_64_TO_32 - Failed
-- Performing Test HAVE_C_WNO_IMPLICIT_FALLTHROUGH
-- Performing Test HAVE_C_WNO_IMPLICIT_FALLTHROUGH - Success
-- libjpeg-turbo: VERSION = 3.1.0, BUILD = opencv-4.12.0-libjpeg-turbo
-- Check size of size_t
-- Check size of size_t - done
-- Check size of unsigned long
-- Check size of unsigned long - done
-- Looking for include file locale.h
-- Looking for include file locale.h - found
-- Looking for include file stdlib.h
-- Looking for include file stdlib.h - found
-- Looking for include file sys/types.h
-- Looking for include file sys/types.h - found
-- Looking for a ASM_NASM compiler
-- Looking for a ASM_NASM compiler - NOTFOUND
-- SIMD extensions disabled: could not find NASM compiler. Performance will suffer.
-- Could NOT find TIFF (missing: TIFF_LIBRARY TIFF_INCLUDE_DIR)
-- Looking for assert.h
-- Looking for assert.h - found
-- Looking for dlfcn.h
-- Looking for dlfcn.h - found
-- Looking for fcntl.h
-- Looking for fcntl.h - found
-- Looking for inttypes.h
-- Looking for inttypes.h - found
-- Looking for io.h
-- Looking for io.h - not found
-- Looking for limits.h
-- Looking for limits.h - found
-- Looking for memory.h
-- Looking for memory.h - found
-- Looking for search.h
-- Looking for search.h - found
-- Looking for string.h
-- Looking for string.h - found
-- Looking for strings.h
-- Looking for strings.h - found
-- Looking for sys/time.h
-- Looking for sys/time.h - found
-- Looking for unistd.h
-- Looking for unistd.h - found
-- Performing Test C_HAS_inline
-- Performing Test C_HAS_inline - Success
-- Check size of signed short
-- Check size of signed short - done
-- Check size of unsigned short
-- Check size of unsigned short - done
-- Check size of signed int
-- Check size of signed int - done
-- Check size of unsigned int
-- Check size of unsigned int - done
-- Check size of signed long
-- Check size of signed long - done
-- Check size of unsigned long
-- Check size of unsigned long - done
-- Check size of signed long long
-- Check size of signed long long - done
-- Check size of unsigned long long
-- Check size of unsigned long long - done
-- Check size of unsigned char *
-- Check size of unsigned char * - done
-- Check size of size_t
-- Check size of size_t - done
-- Check size of ptrdiff_t
-- Check size of ptrdiff_t - done
-- Check size of INT8
-- Check size of INT8 - failed
-- Check size of INT16
-- Check size of INT16 - failed
-- Check size of INT32
-- Check size of INT32 - failed
-- Looking for floor
-- Looking for floor - found
-- Looking for pow
-- Looking for pow - found
-- Looking for sqrt
-- Looking for sqrt - found
-- Looking for isascii
-- Looking for isascii - found
-- Looking for memset
-- Looking for memset - found
-- Looking for mmap
-- Looking for mmap - found
-- Looking for getopt
-- Looking for getopt - found
-- Looking for memmove
-- Looking for memmove - found
-- Looking for setmode
-- Looking for setmode - not found
-- Looking for strcasecmp
-- Looking for strcasecmp - found
-- Looking for strchr
-- Looking for strchr - found
-- Looking for strrchr
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-- Looking for strstr
-- Looking for strstr - found
-- Looking for strtol
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-- Looking for strtol
-- Looking for strtol - found
-- Looking for strtoull
-- Looking for strtoull - found
-- Looking for lfind
-- Looking for lfind - found
-- Check if the system is big endian
-- Searching 16 bit integer
-- Using unsigned short
-- Check if the system is big endian - little endian
-- Performing Test HAVE_C_WNO_UNUSED_BUT_SET_VARIABLE
-- Performing Test HAVE_C_WNO_UNUSED_BUT_SET_VARIABLE - Success
-- Performing Test HAVE_C_WNO_MISSING_PROTOTYPES
-- Performing Test HAVE_C_WNO_MISSING_PROTOTYPES - Success
-- Performing Test HAVE_C_WNO_MISSING_DECLARATIONS
-- Performing Test HAVE_C_WNO_MISSING_DECLARATIONS - Success
-- Performing Test HAVE_C_WNO_UNDEF
-- Performing Test HAVE_C_WNO_UNDEF - Success
-- Performing Test HAVE_C_WNO_UNUSED
-- Performing Test HAVE_C_WNO_UNUSED - Success
-- Performing Test HAVE_C_WNO_CAST_ALIGN
-- Performing Test HAVE_C_WNO_CAST_ALIGN - Success
-- Performing Test HAVE_C_WNO_SHADOW
-- Performing Test HAVE_C_WNO_SHADOW - Success
-- Performing Test HAVE_C_WNO_MAYBE_UNINITIALIZED
-- Performing Test HAVE_C_WNO_MAYBE_UNINITIALIZED - Success
-- Performing Test HAVE_C_WNO_POINTER_TO_INT_CAST
-- Performing Test HAVE_C_WNO_POINTER_TO_INT_CAST - Success
-- Performing Test HAVE_C_WNO_INT_TO_POINTER_CAST
-- Performing Test HAVE_C_WNO_INT_TO_POINTER_CAST - Success
-- Performing Test HAVE_C_WNO_MISLEADING_INDENTATION
-- Performing Test HAVE_C_WNO_MISLEADING_INDENTATION - Success
-- Performing Test HAVE_C_WNO_ARRAY_PARAMETER
-- Performing Test HAVE_C_WNO_ARRAY_PARAMETER - Failed
-- Performing Test HAVE_C_WNO_STRICT_PROTOTYPES
-- Performing Test HAVE_C_WNO_STRICT_PROTOTYPES - Success
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS - Success
-- Performing Test HAVE_C_WNO_MAYBE_UNINITIALIZED - Success
-- Performing Test HAVE_C_WNO_POINTER_TO_INT_CAST
-- Performing Test HAVE_C_WNO_POINTER_TO_INT_CAST - Success
-- Performing Test HAVE_C_WNO_INT_TO_POINTER_CAST
-- Performing Test HAVE_C_WNO_INT_TO_POINTER_CAST - Success
-- Performing Test HAVE_C_WNO_MISLEADING_INDENTATION
-- Performing Test HAVE_C_WNO_MISLEADING_INDENTATION - Success
-- Performing Test HAVE_C_WNO_ARRAY_PARAMETER
-- Performing Test HAVE_C_WNO_ARRAY_PARAMETER - Failed
-- Performing Test HAVE_C_WNO_STRICT_PROTOTYPES
-- Performing Test HAVE_C_WNO_STRICT_PROTOTYPES - Success
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS - Success
-- Performing Test HAVE_C_WNO_POINTER_TO_INT_CAST
-- Performing Test HAVE_C_WNO_POINTER_TO_INT_CAST - Success
-- Performing Test HAVE_C_WNO_INT_TO_POINTER_CAST
-- Performing Test HAVE_C_WNO_INT_TO_POINTER_CAST - Success
-- Performing Test HAVE_C_WNO_MISLEADING_INDENTATION
-- Performing Test HAVE_C_WNO_MISLEADING_INDENTATION - Success
-- Performing Test HAVE_C_WNO_ARRAY_PARAMETER
-- Performing Test HAVE_C_WNO_ARRAY_PARAMETER - Failed
-- Performing Test HAVE_C_WNO_STRICT_PROTOTYPES
-- Performing Test HAVE_C_WNO_STRICT_PROTOTYPES - Success
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS - Success
-- Performing Test HAVE_C_WNO_INT_TO_POINTER_CAST - Success
-- Performing Test HAVE_C_WNO_MISLEADING_INDENTATION
-- Performing Test HAVE_C_WNO_MISLEADING_INDENTATION - Success
-- Performing Test HAVE_C_WNO_ARRAY_PARAMETER
-- Performing Test HAVE_C_WNO_ARRAY_PARAMETER - Failed
-- Performing Test HAVE_C_WNO_STRICT_PROTOTYPES
-- Performing Test HAVE_C_WNO_STRICT_PROTOTYPES - Success
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS - Success
-- Performing Test HAVE_C_WNO_ARRAY_PARAMETER
-- Performing Test HAVE_C_WNO_ARRAY_PARAMETER - Failed
-- Performing Test HAVE_C_WNO_STRICT_PROTOTYPES
-- Performing Test HAVE_C_WNO_STRICT_PROTOTYPES - Success
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS - Success
-- Performing Test HAVE_CXX_WNO_UNUSED_PARAMETER
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS
-- Performing Test HAVE_CXX_WNO_MISSING_DECLARATIONS - Success
-- Performing Test HAVE_CXX_WNO_UNUSED_PARAMETER
-- Performing Test HAVE_CXX_WNO_UNUSED_PARAMETER
-- Performing Test HAVE_CXX_WNO_UNUSED_PARAMETER - Success
-- Performing Test HAVE_CXX_WNO_MISSING_PROTOTYPES
-- Performing Test HAVE_CXX_WNO_MISSING_PROTOTYPES - Failed
-- Performing Test HAVE_CXX_WNO_UNDEF
-- Performing Test HAVE_CXX_WNO_UNDEF - Success
-- Performing Test HAVE_C_WNO_UNUSED_VARIABLE
-- Performing Test HAVE_C_WNO_UNUSED_VARIABLE - Success
-- Performing Test HAVE_C_WNO_UNUSED_FUNCTION
-- Performing Test HAVE_C_WNO_UNUSED_FUNCTION - Success
-- Could NOT find OpenJPEG (minimal suitable version: 2.0, recommended version >= 2.3.1). OpenJPEG will be built from sources
-- Performing Test HAVE_C_WNO_IMPLICIT_CONST_INT_FLOAT_CONVERSION
-- Performing Test HAVE_C_WNO_IMPLICIT_CONST_INT_FLOAT_CONVERSION - Failed
-- Performing Test HAVE_C_WNO_DOCUMENTATION
-- Performing Test HAVE_C_WNO_DOCUMENTATION - Failed
-- OpenJPEG: VERSION = 2.5.3, BUILD = opencv-4.12.0-openjp2-2.5.3
-- Check if the system is big endian
-- Searching 16 bit integer
-- Using unsigned short
-- Check if the system is big endian - little endian
-- Looking for stdio.h
-- Looking for stdio.h - found
-- Looking for math.h
-- Looking for math.h - found
-- Looking for float.h
-- Looking for float.h - found
-- Looking for time.h
-- Looking for time.h - found
-- Looking for stdarg.h
-- Looking for stdarg.h - found
-- Looking for ctype.h
-- Looking for ctype.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for inttypes.h
-- Looking for inttypes.h - found
-- Looking for sys/stat.h
-- Looking for sys/stat.h - found
-- Looking for include file malloc.h
-- Looking for include file malloc.h - found
-- Looking for _aligned_malloc
-- Looking for _aligned_malloc - not found
-- Looking for posix_memalign
-- Looking for posix_memalign - found
-- Looking for memalign
-- Looking for memalign - found
-- Performing Test HAVE_C_WNO_CAST_FUNCTION_TYPE
-- Performing Test HAVE_C_WNO_CAST_FUNCTION_TYPE - Success
-- OpenJPEG libraries will be built from sources: libopenjp2 (version "2.5.3")
-- Performing Test HAVE_C_WNO_NULL_POINTER_SUBTRACTION
-- Performing Test HAVE_C_WNO_NULL_POINTER_SUBTRACTION - Failed
-- Looking for semaphore.h
-- Looking for semaphore.h - found
-- Performing Test HAVE_CXX_WNO_SHADOW
-- Performing Test HAVE_CXX_WNO_SHADOW - Success
-- Performing Test HAVE_CXX_WNO_UNUSED
-- Performing Test HAVE_CXX_WNO_UNUSED - Success
-- Performing Test HAVE_CXX_WNO_SIGN_COMPARE
-- Performing Test HAVE_CXX_WNO_SIGN_COMPARE - Success
-- Performing Test HAVE_CXX_WNO_UNINITIALIZED
-- Performing Test HAVE_CXX_WNO_UNINITIALIZED - Success
-- Performing Test HAVE_CXX_WNO_SWITCH
-- Performing Test HAVE_CXX_WNO_SWITCH - Success
-- Performing Test HAVE_CXX_WNO_PARENTHESES
-- Performing Test HAVE_CXX_WNO_PARENTHESES - Success
-- Performing Test HAVE_CXX_WNO_ARRAY_BOUNDS
-- Performing Test HAVE_CXX_WNO_ARRAY_BOUNDS - Success
-- Performing Test HAVE_CXX_WNO_EXTRA
-- Performing Test HAVE_CXX_WNO_EXTRA - Success
-- Performing Test HAVE_CXX_WNO_DEPRECATED_DECLARATIONS
-- Performing Test HAVE_CXX_WNO_DEPRECATED_DECLARATIONS - Success
-- Performing Test HAVE_CXX_WNO_MISLEADING_INDENTATION
-- Performing Test HAVE_CXX_WNO_MISLEADING_INDENTATION - Success
-- Performing Test HAVE_CXX_WNO_DEPRECATED
-- Performing Test HAVE_CXX_WNO_DEPRECATED - Success
-- Performing Test HAVE_CXX_WNO_SUGGEST_OVERRIDE
-- Performing Test HAVE_CXX_WNO_SUGGEST_OVERRIDE - Success
-- Performing Test HAVE_CXX_WNO_INCONSISTENT_MISSING_OVERRIDE
-- Performing Test HAVE_CXX_WNO_INCONSISTENT_MISSING_OVERRIDE - Failed
-- Performing Test HAVE_CXX_WNO_IMPLICIT_FALLTHROUGH
-- Performing Test HAVE_CXX_WNO_IMPLICIT_FALLTHROUGH - Success
-- Performing Test HAVE_CXX_WNO_TAUTOLOGICAL_COMPARE
-- Performing Test HAVE_CXX_WNO_TAUTOLOGICAL_COMPARE - Success
-- Performing Test HAVE_CXX_WNO_REORDER
-- Performing Test HAVE_CXX_WNO_REORDER - Success
-- Performing Test HAVE_CXX_WNO_UNUSED_RESULT
-- Performing Test HAVE_CXX_WNO_UNUSED_RESULT - Success
-- Performing Test HAVE_CXX_WNO_IMPLICIT_CONST_INT_FLOAT_CONVERSION
-- Performing Test HAVE_CXX_WNO_IMPLICIT_CONST_INT_FLOAT_CONVERSION - Failed
-- Performing Test HAVE_CXX_WNO_CLASS_MEMACCESS
-- Performing Test HAVE_CXX_WNO_CLASS_MEMACCESS - Success
-- libva: missing va.h header (VA_INCLUDE_DIR)
-- IPPICV: Downloading ippicv_2022.1.0_lnx_intel64_20250130_general.tgz from https://raw.githubusercontent.com/opencv/opencv_3rdparty/767426b2a40a011eb2fa7f44c677c13e60e205ad/ippicv/ippicv_2022.1.0_lnx_intel64_20250130_general.tgz
-- Try 1 failed
--
=======================================================================
Couldn't connect to server from the Internet.
Perhaps direct connections are not allowed in the current network.
To use proxy please check/specify these environment variables:
- http_proxy/https_proxy
- and/or HTTP_PROXY/HTTPS_PROXY
=======================================================================
CMake Warning at cmake/OpenCVDownload.cmake:251 (message):
IPPICV: Download failed: 7;"Couldn't connect to server"
For details please refer to the download log file:
/mnt/c/mine/image_processing/opencv-4.12.0/build/CMakeDownloadLog.txt
Call Stack (most recent call first):
3rdparty/ippicv/ippicv.cmake:46 (ocv_download)
cmake/OpenCVFindIPP.cmake:272 (download_ippicv)
cmake/OpenCVFindLibsPerf.cmake:12 (include)
CMakeLists.txt:816 (include)
-- Could NOT find Atlas (missing: Atlas_CBLAS_INCLUDE_DIR Atlas_CLAPACK_INCLUDE_DIR Atlas_CBLAS_LIBRARY Atlas_BLAS_LIBRARY Atlas_LAPACK_LIBRARY)
-- Looking for sgemm_
-- Looking for sgemm_ - not found
-- Found Threads: TRUE
-- Could NOT find BLAS (missing: BLAS_LIBRARIES)
-- LAPACK requires BLAS
-- A library with LAPACK API not found. Please specify library location.
-- Performing Test HAVE_CXX_WNO_UNUSED_LOCAL_TYPEDEFS
-- Performing Test HAVE_CXX_WNO_UNUSED_LOCAL_TYPEDEFS - Success
-- Performing Test HAVE_CXX_WNO_SIGN_PROMO
-- Performing Test HAVE_CXX_WNO_SIGN_PROMO - Success
-- Performing Test HAVE_CXX_WNO_TAUTOLOGICAL_UNDEFINED_COMPARE
-- Performing Test HAVE_CXX_WNO_TAUTOLOGICAL_UNDEFINED_COMPARE - Failed
-- Performing Test HAVE_CXX_WNO_IGNORED_QUALIFIERS
-- Performing Test HAVE_CXX_WNO_IGNORED_QUALIFIERS - Success
-- Performing Test HAVE_CXX_WNO_UNUSED_FUNCTION
-- Performing Test HAVE_CXX_WNO_UNUSED_FUNCTION - Success
-- Performing Test HAVE_CXX_WNO_UNUSED_CONST_VARIABLE
-- Performing Test HAVE_CXX_WNO_UNUSED_CONST_VARIABLE - Success
-- Performing Test HAVE_CXX_WNO_SHORTEN_64_TO_32
-- Performing Test HAVE_CXX_WNO_SHORTEN_64_TO_32 - Failed
-- Performing Test HAVE_CXX_WNO_INVALID_OFFSETOF
-- Performing Test HAVE_CXX_WNO_INVALID_OFFSETOF - Success
-- Performing Test HAVE_CXX_WNO_ENUM_COMPARE_SWITCH
-- Performing Test HAVE_CXX_WNO_ENUM_COMPARE_SWITCH - Failed
-- Performing Test HAVE_CXX_WNO_STRINGOP_OVERFLOW
-- Performing Test HAVE_CXX_WNO_STRINGOP_OVERFLOW - Success
-- Performing Test HAVE_CXX_WNO_STRINGOP_OVERREAD
-- Performing Test HAVE_CXX_WNO_STRINGOP_OVERREAD - Failed
-- Performing Test HAVE_CXX_WNO_EXTRA_SEMI
-- Performing Test HAVE_CXX_WNO_EXTRA_SEMI - Success
-- Performing Test HAVE_CXX_WNO_COMMA
-- Performing Test HAVE_CXX_WNO_COMMA - Failed
-- Could NOT find Java (missing: Java_JAVA_EXECUTABLE Java_JAR_EXECUTABLE Java_JAVAC_EXECUTABLE Java_JAVAH_EXECUTABLE Java_JAVADOC_EXECUTABLE)
-- Could NOT find JNI (missing: JAVA_AWT_LIBRARY JAVA_JVM_LIBRARY JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH)
-- VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
-- Looking for dlerror in dl
-- Looking for dlerror in dl - found
-- ADE: Downloading v0.1.2e.zip from https://github.com/opencv/ade/archive/v0.1.2e.zip
-- Try 1 failed
--
=======================================================================
Couldn't connect to server from the Internet.
Perhaps direct connections are not allowed in the current network.
To use proxy please check/specify these environment variables:
- http_proxy/https_proxy
- and/or HTTP_PROXY/HTTPS_PROXY
=======================================================================
CMake Warning at cmake/OpenCVDownload.cmake:251 (message):
ADE: Download failed: 7;"Couldn't connect to server"
For details please refer to the download log file:
/mnt/c/mine/image_processing/opencv-4.12.0/build/CMakeDownloadLog.txt
Call Stack (most recent call first):
modules/gapi/cmake/DownloadADE.cmake:5 (ocv_download)
modules/gapi/cmake/init.cmake:20 (include)
cmake/OpenCVModule.cmake:298 (include)
cmake/OpenCVModule.cmake:361 (_add_modules_1)
cmake/OpenCVModule.cmake:408 (ocv_glob_modules)
CMakeLists.txt:1096 (ocv_register_modules)
-- Allocator metrics storage type: 'long long'
-- Excluding from source files list: <BUILD>/modules/core/test/test_intrin256.lasx.cpp
-- Excluding from source files list: modules/imgproc/src/imgwarp.lasx.cpp
-- Excluding from source files list: modules/imgproc/src/resize.lasx.cpp
-- Registering hook 'INIT_MODULE_SOURCES_opencv_dnn': /mnt/c/mine/image_processing/opencv-4.12.0/modules/dnn/cmake/hooks/INIT_MODULE_SOURCES_opencv_dnn.cmake
-- opencv_dnn: filter out cuda4dnn source code
-- Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.rvv.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.lasx.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/int8layers/layers_common.rvv.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/int8layers/layers_common.lasx.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_block.neon.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_block.neon_fp16.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_depthwise.rvv.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_depthwise.lasx.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/fast_gemm_kernels.neon.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/fast_gemm_kernels.lasx.cpp
-- imgcodecs: OpenEXR codec is disabled in runtime. Details: https://github.com/opencv/opencv/issues/21326
-- highgui: using builtin backend: NONE
-- Use autogenerated whitelist /mnt/c/mine/image_processing/opencv-4.12.0/build/modules/js_bindings_generator/whitelist.json
-- Found 'misc' Python modules from /mnt/c/mine/image_processing/opencv-4.12.0/modules/python/package/extra_modules
-- Found 'mat_wrapper;utils' Python modules from /mnt/c/mine/image_processing/opencv-4.12.0/modules/core/misc/python/package
-- Performing Test HAVE_CXX_WNO_OVERLOADED_VIRTUAL
-- Performing Test HAVE_CXX_WNO_OVERLOADED_VIRTUAL - Success
-- Performing Test HAVE_CXX_WNO_UNUSED_PRIVATE_FIELD
-- Performing Test HAVE_CXX_WNO_UNUSED_PRIVATE_FIELD - Failed
-- Found 'misc' Python modules from /mnt/c/mine/image_processing/opencv-4.12.0/modules/python/package/extra_modules
-- Found 'mat_wrapper;utils' Python modules from /mnt/c/mine/image_processing/opencv-4.12.0/modules/core/misc/python/package
--
-- General configuration for OpenCV 4.12.0 =====================================
-- Version control: unknown
--
-- Platform:
-- Timestamp: 2025-10-27T10:01:57Z
-- Host: Linux 6.6.87.2-microsoft-standard-WSL2 x86_64
-- CMake: 3.16.3
-- CMake generator: Unix Makefiles
-- CMake build tool: /usr/bin/make
-- Configuration: Release
-- Algorithm Hint: ALGO_HINT_ACCURATE
--
-- CPU/HW features:
-- Baseline: SSE SSE2 SSE3
-- requested: SSE3
-- Dispatched code generation: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
-- SSE4_1 (17 files): + SSSE3 SSE4_1
-- SSE4_2 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2
-- AVX (10 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
-- FP16 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX FP16
-- AVX2 (37 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX FP16 AVX2 FMA3
-- AVX512_SKX (9 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX FP16 AVX2 FMA3 AVX_512F AVX512_COMMON AVX512_SKX
--
-- C/C++:
-- Built as dynamic libs?: YES
-- C++ standard: 11
-- C++ Compiler: /usr/bin/c++ (ver 9.4.0)
-- C++ flags (Release): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG
-- C++ flags (Debug): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
-- C Compiler: /usr/bin/cc
-- C flags (Release): -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse3 -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG
-- C flags (Debug): -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse3 -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
-- Linker flags (Release): -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined
-- Linker flags (Debug): -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined
-- ccache: NO
-- Precompiled headers: NO
-- Extra dependencies: dl m pthread rt
-- 3rdparty dependencies:
--
-- OpenCV modules:
-- To be built: calib3d core dnn features2d flann highgui imgcodecs imgproc ml objdetect photo python3 stitching ts video videoio
-- Disabled: world
-- Disabled by dependency: -
-- Unavailable: gapi java python2
-- Applications: tests perf_tests apps
-- Documentation: NO
-- Non-free algorithms: NO
--
-- GUI: NONE
-- GTK+: NO
-- VTK support: NO
--
-- Media I/O:
-- ZLib: /usr/lib/x86_64-linux-gnu/libz.so (ver 1.2.11)
-- JPEG: build-libjpeg-turbo (ver 3.1.0-70)
-- SIMD Support Request: YES
-- SIMD Support: NO
-- WEBP: build (ver decoder: 0x0209, encoder: 0x020f, demux: 0x0107)
-- AVIF: NO
-- PNG: build (ver 1.6.43)
-- TIFF: build (ver 42 - 4.6.0)
-- JPEG 2000: build (ver 2.5.3)
-- OpenEXR: build (ver 2.3.0)
-- GIF: YES
-- HDR: YES
-- SUNRASTER: YES
-- PXM: YES
-- PFM: YES
--
-- Video I/O:
-- FFMPEG: NO
-- avcodec: NO
-- avformat: NO
-- avutil: NO
-- swscale: NO
-- avresample: NO
-- GStreamer: NO
-- v4l/v4l2: YES (linux/videodev2.h)
--
-- Parallel framework: pthreads
--
-- Trace: YES (with Intel ITT(3.25.4))
--
-- Other third-party libraries:
-- VA: NO
-- Lapack: NO
-- Eigen: NO
-- Custom HAL: NO
-- Protobuf: build (3.19.1)
-- Flatbuffers: builtin/3rdparty (23.5.9)
--
-- OpenCL: YES (no extra features)
-- Include path: /mnt/c/mine/image_processing/opencv-4.12.0/3rdparty/include/opencl/1.2
-- Link libraries: Dynamic load
--
-- Python 3:
-- Interpreter: /usr/bin/python3 (ver 3.8.10)
-- Libraries: /usr/lib/x86_64-linux-gnu/libpython3.8.so (ver 3.8.10)
-- Limited API: NO
-- numpy: /home/root/.local/lib/python3.8/site-packages/numpy/core/include (ver 1.24.4)
-- install path: lib/python3.8/site-packages/cv2/python-3.8
--
-- Python (for build): /usr/bin/python3
--
-- Java:
-- ant: NO
-- Java: NO
-- JNI: NO
-- Java wrappers: NO
-- Java tests: NO
--
-- Install to: /mnt/c/mine/image_processing/opencv-4.12.0/4.12_install
-- -----------------------------------------------------------------
--
-- Configuring done
-- Generating done
-- Build files have been written to: /mnt/c/mine/image_processing/opencv-4.12.0/build
带上gtk
$ guo@localhost:/mnt/c/mine/image_processing/opencv-4.12.0$ cmake -B build -DCMAKE_INSTALL_PREFIX=./4.12_install
-- ocv_init_download: OpenCV source tree is not fetched as git repository. 3rdparty resources will be downloaded from github.com by default.
-- Detected processor: x86_64
-- Looking for ccache - not found
-- Could NOT find AVIF (missing: AVIF_LIBRARY AVIF_INCLUDE_DIR)
Cleaning INTERNAL cached variable: JPEG_LIBRARY
Cleaning INTERNAL cached variable: JPEG_INCLUDE_DIR
-- Could NOT find JPEG (missing: JPEG_LIBRARY JPEG_INCLUDE_DIR)
-- libjpeg-turbo: VERSION = 3.1.0, BUILD = opencv-4.12.0-libjpeg-turbo
-- Performing Test HAVE_BUILTIN_CTZL
-- Performing Test HAVE_BUILTIN_CTZL - Success
-- SIMD extensions disabled: could not find NASM compiler. Performance will suffer.
Cleaning INTERNAL cached variable: TIFF_LIBRARY
Cleaning INTERNAL cached variable: TIFF_INCLUDE_DIR
-- Could NOT find TIFF (missing: TIFF_LIBRARY TIFF_INCLUDE_DIR)
Cleaning INTERNAL cached variable: WEBP_LIBRARY
Cleaning INTERNAL cached variable: WEBP_INCLUDE_DIR
-- Could NOT find OpenJPEG (minimal suitable version: 2.0, recommended version >= 2.3.1). OpenJPEG will be built from sources
-- OpenJPEG: VERSION = 2.5.3, BUILD = opencv-4.12.0-openjp2-2.5.3
-- OpenJPEG libraries will be built from sources: libopenjp2 (version "2.5.3")
Cleaning INTERNAL cached variable: PNG_LIBRARY
Cleaning INTERNAL cached variable: PNG_INCLUDE_DIR
-- libva: missing va.h header (VA_INCLUDE_DIR)
-- IPPICV: Downloading ippicv_2022.1.0_lnx_intel64_20250130_general.tgz from https://raw.githubusercontent.com/opencv/opencv_3rdparty/767426b2a40a011eb2fa7f44c677c13e60e205ad/ippicv/ippicv_2022.1.0_lnx_intel64_20250130_general.tgz
-- Try 1 failed
--
=======================================================================
Couldn't connect to server from the Internet.
Perhaps direct connections are not allowed in the current network.
To use proxy please check/specify these environment variables:
- http_proxy/https_proxy
- and/or HTTP_PROXY/HTTPS_PROXY
=======================================================================
CMake Warning at cmake/OpenCVDownload.cmake:251 (message):
IPPICV: Download failed: 7;"Couldn't connect to server"
For details please refer to the download log file:
/mnt/c/mine/image_processing/opencv-4.12.0/build/CMakeDownloadLog.txt
Call Stack (most recent call first):
3rdparty/ippicv/ippicv.cmake:46 (ocv_download)
cmake/OpenCVFindIPP.cmake:272 (download_ippicv)
cmake/OpenCVFindLibsPerf.cmake:12 (include)
CMakeLists.txt:816 (include)
-- Could NOT find Atlas (missing: Atlas_CBLAS_INCLUDE_DIR Atlas_CLAPACK_INCLUDE_DIR Atlas_CBLAS_LIBRARY Atlas_BLAS_LIBRARY Atlas_LAPACK_LIBRARY)
-- Could NOT find BLAS (missing: BLAS_LIBRARIES)
-- LAPACK requires BLAS
-- A library with LAPACK API not found. Please specify library location.
-- Could NOT find Java (missing: Java_JAVA_EXECUTABLE Java_JAR_EXECUTABLE Java_JAVAC_EXECUTABLE Java_JAVAH_EXECUTABLE Java_JAVADOC_EXECUTABLE)
-- Could NOT find JNI (missing: JAVA_AWT_LIBRARY JAVA_JVM_LIBRARY JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH)
-- VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
-- ADE: Downloading v0.1.2e.zip from https://github.com/opencv/ade/archive/v0.1.2e.zip
-- Try 1 failed
--
=======================================================================
Couldn't connect to server from the Internet.
Perhaps direct connections are not allowed in the current network.
To use proxy please check/specify these environment variables:
- http_proxy/https_proxy
- and/or HTTP_PROXY/HTTPS_PROXY
=======================================================================
CMake Warning at cmake/OpenCVDownload.cmake:251 (message):
ADE: Download failed: 7;"Couldn't connect to server"
For details please refer to the download log file:
/mnt/c/mine/image_processing/opencv-4.12.0/build/CMakeDownloadLog.txt
Call Stack (most recent call first):
modules/gapi/cmake/DownloadADE.cmake:5 (ocv_download)
modules/gapi/cmake/init.cmake:20 (include)
cmake/OpenCVModule.cmake:298 (include)
cmake/OpenCVModule.cmake:361 (_add_modules_1)
cmake/OpenCVModule.cmake:408 (ocv_glob_modules)
CMakeLists.txt:1096 (ocv_register_modules)
-- Checking for module 'gtk+-3.0'
-- No package 'gtk+-3.0' found
-- Checking for module 'gtk+-2.0'
-- Found gtk+-2.0, version 2.24.32
-- Checking for modules 'libavcodec;libavformat;libavutil;libswscale'
-- No package 'libavcodec' found
-- No package 'libavformat' found
-- No package 'libavutil' found
-- No package 'libswscale' found
-- FFMPEG is disabled. Required libraries: libavcodec;libavformat;libavutil;libswscale. Missing libraries: libavcodec;libavformat;libavutil;libswscale
-- Checking for module 'gstreamer-base-1.0'
-- No package 'gstreamer-base-1.0' found
-- Checking for module 'gstreamer-app-1.0'
-- No package 'gstreamer-app-1.0' found
-- Checking for module 'gstreamer-riff-1.0'
-- No package 'gstreamer-riff-1.0' found
-- Checking for module 'gstreamer-pbutils-1.0'
-- No package 'gstreamer-pbutils-1.0' found
-- Checking for module 'gstreamer-video-1.0'
-- No package 'gstreamer-video-1.0' found
-- Checking for module 'gstreamer-audio-1.0'
-- No package 'gstreamer-audio-1.0' found
-- Allocator metrics storage type: 'long long'
-- Excluding from source files list: <BUILD>/modules/core/test/test_intrin256.lasx.cpp
-- Excluding from source files list: modules/imgproc/src/imgwarp.lasx.cpp
-- Excluding from source files list: modules/imgproc/src/resize.lasx.cpp
-- Registering hook 'INIT_MODULE_SOURCES_opencv_dnn': /mnt/c/mine/image_processing/opencv-4.12.0/modules/dnn/cmake/hooks/INIT_MODULE_SOURCES_opencv_dnn.cmake
-- opencv_dnn: filter out cuda4dnn source code
-- Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.rvv.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.lasx.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/int8layers/layers_common.rvv.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/int8layers/layers_common.lasx.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_block.neon.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_block.neon_fp16.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_depthwise.rvv.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_depthwise.lasx.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/fast_gemm_kernels.neon.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/fast_gemm_kernels.lasx.cpp
-- imgcodecs: OpenEXR codec is disabled in runtime. Details: https://github.com/opencv/opencv/issues/21326
-- highgui: using builtin backend: GTK2
-- Use autogenerated whitelist /mnt/c/mine/image_processing/opencv-4.12.0/build/modules/js_bindings_generator/whitelist.json
-- Found 'misc' Python modules from /mnt/c/mine/image_processing/opencv-4.12.0/modules/python/package/extra_modules
-- Found 'mat_wrapper;utils' Python modules from /mnt/c/mine/image_processing/opencv-4.12.0/modules/core/misc/python/package
-- Found 'misc' Python modules from /mnt/c/mine/image_processing/opencv-4.12.0/modules/python/package/extra_modules
-- Found 'mat_wrapper;utils' Python modules from /mnt/c/mine/image_processing/opencv-4.12.0/modules/core/misc/python/package
--
-- General configuration for OpenCV 4.12.0 =====================================
-- Version control: unknown
--
-- Platform:
-- Timestamp: 2025-10-27T10:01:57Z
-- Host: Linux 6.6.87.2-microsoft-standard-WSL2 x86_64
-- CMake: 3.16.3
-- CMake generator: Unix Makefiles
-- CMake build tool: /usr/bin/make
-- Configuration: Release
-- Algorithm Hint: ALGO_HINT_ACCURATE
--
-- CPU/HW features:
-- Baseline: SSE SSE2 SSE3
-- requested: SSE3
-- Dispatched code generation: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
-- SSE4_1 (17 files): + SSSE3 SSE4_1
-- SSE4_2 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2
-- AVX (10 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
-- FP16 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX FP16
-- AVX2 (37 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX FP16 AVX2 FMA3
-- AVX512_SKX (9 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX FP16 AVX2 FMA3 AVX_512F AVX512_COMMON AVX512_SKX
--
-- C/C++:
-- Built as dynamic libs?: YES
-- C++ standard: 11
-- C++ Compiler: /usr/bin/c++ (ver 9.4.0)
-- C++ flags (Release): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG
-- C++ flags (Debug): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
-- C Compiler: /usr/bin/cc
-- C flags (Release): -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse3 -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG
-- C flags (Debug): -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse3 -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
-- Linker flags (Release): -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined
-- Linker flags (Debug): -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined
-- ccache: NO
-- Precompiled headers: NO
-- Extra dependencies: dl m pthread rt
-- 3rdparty dependencies:
--
-- OpenCV modules:
-- To be built: calib3d core dnn features2d flann highgui imgcodecs imgproc ml objdetect photo python3 stitching ts video videoio
-- Disabled: world
-- Disabled by dependency: -
-- Unavailable: gapi java python2
-- Applications: tests perf_tests apps
-- Documentation: NO
-- Non-free algorithms: NO
--
-- GUI: GTK2
-- GTK+: YES (ver 2.24.32)
-- GtkGlExt: NO
-- VTK support: NO
--
-- Media I/O:
-- ZLib: /usr/lib/x86_64-linux-gnu/libz.so (ver 1.2.11)
-- JPEG: build-libjpeg-turbo (ver 3.1.0-70)
-- SIMD Support Request: YES
-- SIMD Support: NO
-- WEBP: build (ver decoder: 0x0209, encoder: 0x020f, demux: 0x0107)
-- AVIF: NO
-- PNG: /usr/lib/x86_64-linux-gnu/libpng.so (ver 1.6.37)
-- TIFF: build (ver 42 - 4.6.0)
-- JPEG 2000: build (ver 2.5.3)
-- OpenEXR: build (ver 2.3.0)
-- GIF: YES
-- HDR: YES
-- SUNRASTER: YES
-- PXM: YES
-- PFM: YES
--
-- Video I/O:
-- FFMPEG: NO
-- avcodec: NO
-- avformat: NO
-- avutil: NO
-- swscale: NO
-- avresample: NO
-- GStreamer: NO
-- v4l/v4l2: YES (linux/videodev2.h)
--
-- Parallel framework: pthreads
--
-- Trace: YES (with Intel ITT(3.25.4))
--
-- Other third-party libraries:
-- VA: NO
-- Lapack: NO
-- Eigen: NO
-- Custom HAL: NO
-- Protobuf: build (3.19.1)
-- Flatbuffers: builtin/3rdparty (23.5.9)
--
-- OpenCL: YES (no extra features)
-- Include path: /mnt/c/mine/image_processing/opencv-4.12.0/3rdparty/include/opencl/1.2
-- Link libraries: Dynamic load
--
-- Python 3:
-- Interpreter: /usr/bin/python3 (ver 3.8.10)
-- Libraries: /usr/lib/x86_64-linux-gnu/libpython3.8.so (ver 3.8.10)
-- Limited API: NO
-- numpy: /home/guo/.local/lib/python3.8/site-packages/numpy/core/include (ver 1.24.4)
-- install path: lib/python3.8/site-packages/cv2/python-3.8
--
-- Python (for build): /usr/bin/python3
--
-- Java:
-- ant: NO
-- Java: NO
-- JNI: NO
-- Java wrappers: NO
-- Java tests: NO
--
-- Install to: /mnt/c/mine/image_processing/opencv-4.12.0/4.12_install
-- -----------------------------------------------------------------
--
-- Configuring done
-- Generating done
-- Build files have been written to: /mnt/c/mine/image_processing/opencv-4.12.0/build
cmake 编译：
$ cmake --build build/
# 会输出编译进程
# 编译完成后，会产生一些列的目录，存放相关依赖和编译结果
$ ll -h
total 108K
drwxrwxrwx 1 root root 4.0K Oct 27 17:59 ./
drwxrwxrwx 1 root root 4.0K Oct 27 17:50 ../
drwxrwxrwx 1 root root 4.0K Oct 27 18:01 .cache/
-rwxrwxrwx 1 root root 455 Jul 2 15:54 .editorconfig*
drwxrwxrwx 1 root root 4.0K Jul 2 15:54 3rdparty/
-rwxrwxrwx 1 root root 82K Jul 2 15:54 CMakeLists.txt*
-rwxrwxrwx 1 root root 191 Jul 2 15:54 CONTRIBUTING.md*
-rwxrwxrwx 1 root root 733 Jul 2 15:54 COPYRIGHT*
-rwxrwxrwx 1 root root 12K Jul 2 15:54 LICENSE*
-rwxrwxrwx 1 root root 1.7K Jul 2 15:54 README.md*
-rwxrwxrwx 1 root root 3.1K Jul 2 15:54 SECURITY.md*
drwxrwxrwx 1 root root 4.0K Jul 2 15:54 apps/
drwxrwxrwx 1 root root 4.0K Oct 27 18:02 build/
drwxrwxrwx 1 root root 4.0K Jul 2 15:54 cmake/
drwxrwxrwx 1 root root 4.0K Jul 2 15:54 data/
drwxrwxrwx 1 root root 4.0K Jul 2 15:54 doc/
drwxrwxrwx 1 root root 4.0K Jul 2 15:54 hal/
drwxrwxrwx 1 root root 4.0K Jul 2 15:54 include/
drwxrwxrwx 1 root root 4.0K Jul 2 15:54 modules/
drwxrwxrwx 1 root root 4.0K Jul 2 15:54 platforms/
drwxrwxrwx 1 root root 4.0K Jul 2 15:54 samples/
如果提示找不到依赖库，考虑下给ubuntu换源，安装对应的依赖库。
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