我想使用 CMake for Visual Studio 2019 设置 OpenCV。在调试我的程序时完成所有这些过程后，我收到此错误：
yaabolfazl.exe 中 0x00007FFCF1FF2382 (opencv_world412d.dll) 处未处理的异常：0xC000001D：非法指令。发生了。
我认为这是由于我的处理器不支持 AVX（Windows 8.1，core i5 M520 2.4GHz）造成的。（我是对的吗？）我发现我可以通过使用CPU_DISPATCH和CPU_BASELINE选项使用 CMake 制作一个不支持 AVX 的新版本的 OpenCV，但是当我更改它们的值时，我得到了这个错误：
配置过程出错，项目文件可能无效。
那么如何在没有 AVX 支持的情况下使用 CMake 构建 OpenCV（例如，仅使用 SSE 支持）？
我的 CMake 配置
CPU指令集：
问题很可能是您的 CPU 不支持 OpenCV 使用的某些 CPU 功能（如 AVX）。我不确定在构建 OpenCV 时禁用这些功能的确切 CMake 标志是什么，但还有另一种方法可以解决这个问题（蛮力方法：D）。从此链接下载 OpenCV 源代码 并解压缩（当前最新版本为 4.1.1）。转到opencv-4.1.1\cmake文件夹并在文本编辑器中打开OpenCVCompilerOptimizations.cmake 。它包含针对不同 CPU 架构的优化。问题中附加的屏幕截图显示了您的 CPU 支持的指令。在OpenCVCompilerOptimizations.cmake文件只需删除（或注释掉）您的 CPU 不支持的每个指令选项。这是我的版本（我只包括修改所在文件的前半部分。将其与原始版本进行比较以查看差异）：
# x86/x86-64 arch:
# SSE / SSE2 (always available on 64-bit CPUs)
# SSE3 / SSSE3
# SSE4_1 / SSE4_2 / POPCNT
# AVX / AVX2 / AVX_512F
# FMA3
#
# CPU features groups:
# AVX512_COMMON (Common instructions AVX-512F/CD for all CPUs that support AVX-512)
# AVX512_KNL (Knights Landing with AVX-512F/CD/ER/PF)
# AVX512_KNM (Knights Mill with AVX-512F/CD/ER/PF/4FMAPS/4VNNIW/VPOPCNTDQ)
# AVX512_SKX (Skylake-X with AVX-512F/CD/BW/DQ/VL)
# AVX512_CNL (Cannon Lake with AVX-512F/CD/BW/DQ/VL/IFMA/VBMI)
# AVX512_CEL (Cascade Lake with AVX-512F/CD/BW/DQ/VL/IFMA/VBMI/VNNI)
# AVX512_ICL (Ice Lake with AVX-512F/CD/BW/DQ/VL/IFMA/VBMI/VNNI/VBMI2/BITALG/VPOPCNTDQ/VPCLMULQDQ*/GFNI*/VAES*)
# ppc64le arch:
# VSX (always available on Power8)
# VSX3 (always available on Power9)
# CPU_{opt}_SUPPORTED=ON/OFF - compiler support (possibly with additional flag)
# CPU_{opt}_IMPLIES=<list>
# CPU_{opt}_FORCE=<list> - subset of "implies" list
# CPU_{opt}_GROUP=<list> - similar to "implies" list, but additionally merges compiler flags
# CPU_{opt}_FLAGS_ON=""
# CPU_{opt}_FEATURE_ALIAS - mapping to CV_CPU_* HWFeature enum
# Input variables:
# CPU_BASELINE=<list> - preferred list of baseline optimizations
# CPU_DISPATCH=<list> - preferred list of dispatched optimizations
# Advanced input variables:
# CPU_BASELINE_REQUIRE=<list> - list of required baseline optimizations
# CPU_DISPATCH_REQUIRE=<list> - list of required dispatched optimizations
# CPU_BASELINE_DISABLE=<list> - list of disabled baseline optimizations
# Output variables:
# CPU_BASELINE_FINAL=<list> - final list of enabled compiler optimizations
# CPU_DISPATCH_FINAL=<list> - final list of dispatched optimizations
#
# CPU_DISPATCH_FLAGS_${opt} - flags for source files compiled separately (<name>.avx2.cpp)
#
# CPU_{opt}_ENABLED_DEFAULT=ON/OFF - has compiler support without additional flag (CPU_BASELINE_DETECT=ON only)
set(CPU_ALL_OPTIMIZATIONS "SSE;SSE2;SSE3;SSSE3;SSE4_1;SSE4_2")
##list(APPEND CPU_ALL_OPTIMIZATIONS "AVX512_COMMON;AVX512_KNL;AVX512_KNM;AVX512_SKX;AVX512_CNL;AVX512_CEL;AVX512_ICL")
##list(APPEND CPU_ALL_OPTIMIZATIONS NEON VFPV3 FP16)
##list(APPEND CPU_ALL_OPTIMIZATIONS VSX VSX3)
list(REMOVE_DUPLICATES CPU_ALL_OPTIMIZATIONS)
ocv_update(CPU_VFPV3_FEATURE_ALIAS "")
set(HELP_CPU_BASELINE "Specify list of enabled baseline CPU optimizations")
set(HELP_CPU_BASELINE_REQUIRE "Specify list of required baseline CPU optimizations")
set(HELP_CPU_BASELINE_DISABLE "Specify list of forbidden baseline CPU optimizations")
set(HELP_CPU_DISPATCH "Specify list of dispatched CPU optimizations")
set(HELP_CPU_DISPATCH_REQUIRE "Specify list of required dispatched CPU optimizations")
foreach(var CPU_BASELINE CPU_BASELINE_REQUIRE CPU_BASELINE_DISABLE CPU_DISPATCH CPU_DISPATCH_REQUIRE)
if(DEFINED ${var})
string(REPLACE "," ";" _list "${${var}}")
set(${var} "${_list}" CACHE STRING "${HELP_${var}}" FORCE)
endif()
endforeach()
# process legacy flags
macro(ocv_optimization_process_obsolete_option legacy_flag OPT legacy_warn)
if(DEFINED "${legacy_flag}")
if("${legacy_warn}")
message(STATUS "WARNING: Option ${legacy_flag}='${${legacy_flag}}' is deprecated and should not be used anymore")
message(STATUS " Behaviour of this option is not backward compatible")
message(STATUS " Refer to 'CPU_BASELINE'/'CPU_DISPATCH' CMake options documentation")
endif()
if("${${legacy_flag}}")
if(NOT ";${CPU_BASELINE_REQUIRE};" MATCHES ";${OPT};")
set(CPU_BASELINE_REQUIRE "${CPU_BASELINE_REQUIRE};${OPT}" CACHE STRING "${HELP_CPU_BASELINE_REQUIRE}" FORCE)
endif()
else()
if(NOT ";${CPU_BASELINE_DISABLE};" MATCHES ";${OPT};")
set(CPU_BASELINE_DISABLE "${CPU_BASELINE_DISABLE};${OPT}" CACHE STRING "${HELP_CPU_BASELINE_DISABLE}" FORCE)
endif()
endif()
endif()
endmacro()
ocv_optimization_process_obsolete_option(ENABLE_SSE SSE ON)
ocv_optimization_process_obsolete_option(ENABLE_SSE2 SSE2 ON)
ocv_optimization_process_obsolete_option(ENABLE_SSE3 SSE3 ON)
ocv_optimization_process_obsolete_option(ENABLE_SSSE3 SSSE3 ON)
ocv_optimization_process_obsolete_option(ENABLE_SSE41 SSE4_1 ON)
ocv_optimization_process_obsolete_option(ENABLE_SSE42 SSE4_2 ON)
# ocv_optimization_process_obsolete_option(ENABLE_POPCNT POPCNT ON)
# ocv_optimization_process_obsolete_option(ENABLE_AVX AVX OFF)
# ocv_optimization_process_obsolete_option(ENABLE_AVX2 AVX2 OFF)
#ocv_optimization_process_obsolete_option(ENABLE_FMA3 FMA3 ON)
# ocv_optimization_process_obsolete_option(ENABLE_VFPV3 VFPV3 OFF)
# ocv_optimization_process_obsolete_option(ENABLE_NEON NEON OFF)
# ocv_optimization_process_obsolete_option(ENABLE_VSX VSX ON)
macro(ocv_is_optimization_in_list resultvar check_opt)
set(__checked "")
set(__queue ${ARGN})
set(${resultvar} 0)
while(__queue AND NOT ${resultvar})
list(REMOVE_DUPLICATES __queue)
set(__queue_current ${__queue})
set(__queue "")
foreach(OPT ${__queue_current})
if("x${OPT}" STREQUAL "x${check_opt}")
set(${resultvar} 1)
break()
elseif(NOT ";${__checked};" MATCHES ";${OPT};")
list(APPEND __queue ${CPU_${OPT}_IMPLIES})
endif()
list(APPEND __checked ${OPT})
endforeach()
endwhile()
endmacro()
macro(ocv_is_optimization_in_force_list resultvar check_opt)
set(__checked "")
set(__queue ${ARGN})
set(${resultvar} 0)
while(__queue AND NOT ${resultvar})
list(REMOVE_DUPLICATES __queue)
set(__queue_current ${__queue})
set(__queue "")
foreach(OPT ${__queue_current})
if(OPT STREQUAL "${check_opt}")
set(${resultvar} 1)
break()
elseif(NOT ";${__checked};" MATCHES ";${OPT};")
list(APPEND __queue ${CPU_${OPT}_FORCE})
endif()
list(APPEND __checked ${OPT})
endforeach()
endwhile()
endmacro()
macro(ocv_append_optimization_flag var OPT)
if(CPU_${OPT}_FLAGS_CONFLICT)
string(REGEX REPLACE " ${CPU_${OPT}_FLAGS_CONFLICT}" "" ${var} " ${${var}} ")
string(REGEX REPLACE "^ +" "" ${var} "${${var}}")
endif()
set(${var} "${${var}} ${CPU_${OPT}_FLAGS_ON}")
endmacro()
# Support GCC -march=native or Intel Compiler -xHost flags
if(";${CPU_BASELINE};" MATCHES ";NATIVE;" OR ";${CPU_BASELINE};" MATCHES ";HOST;")
set(CPU_BASELINE_DETECT ON)
set(_add_native_flag ON)
elseif(";${CPU_BASELINE};" MATCHES ";DETECT;")
set(CPU_BASELINE_DETECT ON)
elseif(" ${CMAKE_CXX_FLAGS} " MATCHES " -march=native | -xHost | /QxHost ")
if(DEFINED CPU_BASELINE)
message(STATUS "CPU: Detected '-march=native' or '-xHost' compiler flag. Force CPU_BASELINE=DETECT.")
endif()
set(CPU_BASELINE "DETECT" CACHE STRING "${HELP_CPU_BASELINE}")
set(CPU_BASELINE_DETECT ON)
endif()
if(X86 OR X86_64)
ocv_update(CPU_KNOWN_OPTIMIZATIONS "SSE;SSE2;SSE3;SSSE3;SSE4_1;SSE4_2")
# ocv_update(CPU_AVX512_COMMON_GROUP "AVX_512F;AVX_512CD")
# ocv_update(CPU_AVX512_KNL_GROUP "AVX512_COMMON;AVX512_KNL_EXTRA")
# ocv_update(CPU_AVX512_KNM_GROUP "AVX512_KNL;AVX512_KNM_EXTRA;AVX_512VPOPCNTDQ")
# ocv_update(CPU_AVX512_SKX_GROUP "AVX512_COMMON;AVX_512VL;AVX_512BW;AVX_512DQ")
# ocv_update(CPU_AVX512_CNL_GROUP "AVX512_SKX;AVX_512IFMA;AVX_512VBMI")
# ocv_update(CPU_AVX512_CEL_GROUP "AVX512_CNL;AVX_512VNNI")
# ocv_update(CPU_AVX512_ICL_GROUP "AVX512_CEL;AVX_512VBMI2;AVX_512BITALG;AVX_512VPOPCNTDQ") # ? VPCLMULQDQ, GFNI, VAES
ocv_update(CPU_SSE_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_sse.cpp")
ocv_update(CPU_SSE2_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_sse2.cpp")
ocv_update(CPU_SSE3_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_sse3.cpp")
ocv_update(CPU_SSSE3_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_ssse3.cpp")
ocv_update(CPU_SSE4_1_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_sse41.cpp")
ocv_update(CPU_SSE4_2_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_sse42.cpp")
# ocv_update(CPU_POPCNT_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_popcnt.cpp")
# ocv_update(CPU_AVX_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx.cpp")
# ocv_update(CPU_AVX2_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx2.cpp")
# ocv_update(CPU_FP16_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_fp16.cpp")
# ocv_update(CPU_AVX_512F_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512.cpp")
# ocv_update(CPU_AVX512_COMMON_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512common.cpp")
# ocv_update(CPU_AVX512_KNL_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512knl.cpp")
# ocv_update(CPU_AVX512_KNM_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512knm.cpp")
# ocv_update(CPU_AVX512_SKX_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512skx.cpp")
# ocv_update(CPU_AVX512_CNL_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512cnl.cpp")
# ocv_update(CPU_AVX512_CEL_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512cel.cpp")
# ocv_update(CPU_AVX512_ICL_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512icl.cpp")
if(NOT OPENCV_CPU_OPT_IMPLIES_IGNORE)
# ocv_update(CPU_AVX512_ICL_IMPLIES "AVX512_CEL")
# ocv_update(CPU_AVX512_CEL_IMPLIES "AVX512_CNL")
# ocv_update(CPU_AVX512_CNL_IMPLIES "AVX512_SKX")
# ocv_update(CPU_AVX512_SKX_IMPLIES "AVX512_COMMON")
# ocv_update(CPU_AVX512_KNM_IMPLIES "AVX512_KNL")
# ocv_update(CPU_AVX512_KNL_IMPLIES "AVX512_COMMON")
# ocv_update(CPU_AVX512_COMMON_IMPLIES "AVX_512F")
# ocv_update(CPU_AVX_512F_IMPLIES "AVX2")
# ocv_update(CPU_AVX_512F_FORCE "") # Don't force other optimizations
# ocv_update(CPU_AVX2_IMPLIES "AVX;FMA3;FP16")
# ocv_update(CPU_FMA3_IMPLIES "AVX2")
# ocv_update(CPU_FMA3_FORCE "") # Don't force other optimizations
# ocv_update(CPU_FP16_IMPLIES "AVX")
# ocv_update(CPU_FP16_FORCE "") # Don't force other optimizations
# ocv_update(CPU_AVX_IMPLIES "SSE4_2")
###ocv_update(CPU_SSE4_2_IMPLIES "SSE4_1;POPCNT")
ocv_update(CPU_SSE4_2_IMPLIES "SSE4_1")
ocv_update(CPU_POPCNT_IMPLIES "SSE4_1")
ocv_update(CPU_POPCNT_FORCE "") # Don't force other optimizations
ocv_update(CPU_SSE4_1_IMPLIES "SSE3;SSSE3")
ocv_update(CPU_SSSE3_IMPLIES "SSE3")
ocv_update(CPU_SSE3_IMPLIES "SSE2")
ocv_update(CPU_SSE2_IMPLIES "SSE")
endif()
if(CV_ICC)
macro(ocv_intel_compiler_optimization_option name unix_flags msvc_flags)
ocv_update(CPU_${name}_FLAGS_NAME "${name}")
if(MSVC)
set(enable_flags "${msvc_flags}")
set(flags_conflict "/arch:[^ ]*|/Qx:[^ ]+")
else()
set(enable_flags "${unix_flags}")
set(flags_conflict "-msse[^ ]*|-mssse3|-mavx[^ ]*|-march[^ ]*|-x[^ ]+")
endif()
ocv_update(CPU_${name}_FLAGS_ON "${enable_flags}")
if(flags_conflict)
ocv_update(CPU_${name}_FLAGS_CONFLICT "${flags_conflict}")
endif()
endmacro()
# ocv_intel_compiler_optimization_option(AVX2 "-march=core-avx2" "/arch:CORE-AVX2")
# ocv_intel_compiler_optimization_option(FP16 "-mavx" "/arch:AVX")
# ocv_intel_compiler_optimization_option(AVX "-mavx" "/arch:AVX")
# ocv_intel_compiler_optimization_option(FMA3 "" "")
# ocv_intel_compiler_optimization_option(POPCNT "" "")
ocv_intel_compiler_optimization_option(SSE4_2 "-msse4.2" "/arch:SSE4.2")
ocv_intel_compiler_optimization_option(SSE4_1 "-msse4.1" "/arch:SSE4.1")
ocv_intel_compiler_optimization_option(SSE3 "-msse3" "/arch:SSE3")
ocv_intel_compiler_optimization_option(SSSE3 "-mssse3" "/arch:SSSE3")
ocv_intel_compiler_optimization_option(SSE2 "-msse2" "/arch:SSE2")
if(NOT X86_64) # x64 compiler doesn't support /arch:sse
ocv_intel_compiler_optimization_option(SSE "-msse" "/arch:SSE")
endif()
# ocv_intel_compiler_optimization_option(AVX_512F "-xCOMMON-AVX512" "/Qx:COMMON-AVX512")
# ocv_intel_compiler_optimization_option(AVX512_COMMON "-xCOMMON-AVX512" "/Qx:COMMON-AVX512")
# ocv_intel_compiler_optimization_option(AVX512_KNL "-xKNL" "/Qx:KNL")
# ocv_intel_compiler_optimization_option(AVX512_KNM "-xKNM" "/Qx:KNM")
# ocv_intel_compiler_optimization_option(AVX512_SKX "-xSKYLAKE-AVX512" "/Qx:SKYLAKE-AVX512")
# ocv_intel_compiler_optimization_option(AVX512_CNL "-xCANNONLAKE" "/Qx:CANNONLAKE")
# ocv_intel_compiler_optimization_option(AVX512_CEL "-xCASCADELAKE" "/Qx:CASCADELAKE")
# ocv_intel_compiler_optimization_option(AVX512_ICL "-xICELAKE-CLIENT" "/Qx:ICELAKE-CLIENT")
elseif(CV_GCC OR CV_CLANG)
# ocv_update(CPU_AVX2_FLAGS_ON "-mavx2")
# ocv_update(CPU_FP16_FLAGS_ON "-mf16c")
# ocv_update(CPU_AVX_FLAGS_ON "-mavx")
# ocv_update(CPU_FMA3_FLAGS_ON "-mfma")
# ocv_update(CPU_POPCNT_FLAGS_ON "-mpopcnt")
ocv_update(CPU_SSE4_2_FLAGS_ON "-msse4.2")
ocv_update(CPU_SSE4_1_FLAGS_ON "-msse4.1")
ocv_update(CPU_SSE3_FLAGS_ON "-msse3")
ocv_update(CPU_SSSE3_FLAGS_ON "-mssse3")
ocv_update(CPU_SSE2_FLAGS_ON "-msse2")
ocv_update(CPU_SSE_FLAGS_ON "-msse")
# if(NOT (CV_GCC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.0")) # GCC >= 5.0
# # ocv_update(CPU_AVX_512F_FLAGS_ON "-mavx512f")
# # ocv_update(CPU_AVX_512CD_FLAGS_ON "-mavx512cd")
# # ocv_update(CPU_AVX512_KNL_EXTRA_FLAGS_ON "-mavx512er -mavx512pf")
# # ocv_update(CPU_AVX512_KNM_EXTRA_FLAGS_ON "-mavx5124fmaps -mavx5124vnniw")
# # ocv_update(CPU_AVX_512BW_FLAGS_ON "-mavx512bw")
# # ocv_update(CPU_AVX_512DQ_FLAGS_ON "-mavx512dq")
# # ocv_update(CPU_AVX_512VL_FLAGS_ON "-mavx512vl")
# # ocv_update(CPU_AVX_512IFMA_FLAGS_ON "-mavx512ifma")
# # ocv_update(CPU_AVX_512VBMI_FLAGS_ON "-mavx512vbmi")
# # ocv_update(CPU_AVX_512VNNI_FLAGS_ON "-mavx512vnni")
# # ocv_update(CPU_AVX_512VBMI2_FLAGS_ON "-mavx512vbmi2")
# # ocv_update(CPU_AVX_512BITALG_FLAGS_ON "-mavx512bitalg")
# # ocv_update(CPU_AVX_512VPOPCNTDQ_FLAGS_ON "-mavx512vpopcntdq")
# else()
# ocv_update(CPU_AVX_512F_SUPPORTED OFF)
# endif()
elseif(MSVC)
# ocv_update(CPU_AVX2_FLAGS_ON "/arch:AVX2")
# ocv_update(CPU_AVX_FLAGS_ON "/arch:AVX")
# ocv_update(CPU_FP16_FLAGS_ON "/arch:AVX")
if(NOT MSVC64)
# 64-bit MSVC compiler uses SSE/SSE2 by default
ocv_update(CPU_SSE_FLAGS_ON "/arch:SSE")
ocv_update(CPU_SSE_SUPPORTED ON)
ocv_update(CPU_SSE2_FLAGS_ON "/arch:SSE2")
ocv_update(CPU_SSE2_SUPPORTED ON)
else()
ocv_update(CPU_SSE_SUPPORTED ON)
ocv_update(CPU_SSE2_SUPPORTED ON)
# ocv_update(CPU_AVX_512F_FLAGS_ON "/arch:AVX512")
endif()
# Other instruction sets are supported by default since MSVC 2008 at least
else()
message(WARNING "TODO: Unsupported compiler")
endif()
# if(NOT DEFINED CPU_DISPATCH)
# if(X86_64)
# set(CPU_DISPATCH "SSE4_1;SSE4_2;AVX;FP16;AVX2;AVX512_SKX" CACHE STRING "${HELP_CPU_DISPATCH}")
# else()
# set(CPU_DISPATCH "SSE4_1;SSE4_2;AVX;FP16" CACHE STRING "${HELP_CPU_DISPATCH}")
# endif()
# endif()
if(NOT DEFINED CPU_BASELINE)
if(APPLE)
# MacOS X has limited set of possible supported H/W, so compiler is configured well
set(CPU_BASELINE "DETECT" CACHE STRING "${HELP_CPU_BASELINE}")
elseif(X86_64)
set(CPU_BASELINE "SSE3" CACHE STRING "${HELP_CPU_BASELINE}")
else()
set(CPU_BASELINE "SSE2" CACHE STRING "${HELP_CPU_BASELINE}")
endif()
endif()
之后，您只需使用 CMake 构建 OpenCV。这是我的做法：
执行以下命令（我已禁用构建示例并进行测试，因为其中一些会失败）（不要忘记命令末尾的 ..！）（对于 Visual Studio 2019，将“Visual Studio 15 2017”替换为“视觉工作室 16 2019"）：
cmake -D ENABLE_AVX=OFF -D ENABLE_AVX2=OFF -D BUILD_EXAMPLES=OFF -D BUILD_DOCS=OFF -D BUILD_PERF_TESTS=OFF -D BUILD_TESTS=OFF -G "Visual Studio 15 2017" ..
CMake 生成项目后，使用 Visual Studio 打开 build 文件夹中的解决方案文件 (OpenCV.sln)
构建ALL_BUILD项目
一个项目会失败。如果您查看错误，它会显示类似'CV_CPU_HAS_SUPPORT_AVX512_SKX': undeclared identifier只需在代码中将关键字CV_CPU_HAS_SUPPORT_AVX512_SKX替换为false（在整个解决方案中出现 3 次，全部替换 3 次）并再次点击 build on ALL_BUILD
构建安装项目。它将在我们的构建文件夹中创建一个名为install的文件夹。
使用项目中安装文件夹中新构建的 OpenCV 库、二进制文件和包含文件，它应该可以工作。