目录如下：

CMakeLists.txt内容如下：

#最低CMake版本
cmake_minimum_required(VERSION 3.5)
#项目名
set(PROJECT_NAME  QtCmakeVsOpenCV)
project(${PROJECT_NAME})

#set(CMAKE_BUILD_TYPE Debug)
set(CMAKE_BUILD_TYPE Release)
#set模块
set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(CMAKE_AUTOUIC ON)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
#exe生成路径，CMAKE_CURRENT_SOURCE_DIR指CMakeLists.txt所在的路径
#set(EXECUTABLE_OUTPUT_PATH ${CMAKE_CURRENT_SOURCE_DIR}/build/)
#C++版本
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
#查找依赖的Qt文件
find_package(QT NAMES Qt6 Qt5 COMPONENTS Widgets REQUIRED)
find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Widgets REQUIRED)
#查找OpenCV库
find_package(OpenCV REQUIRED)
include_directories(${OpenCV_INCLUDE_DIRS})

#生成exe所需源文件，注意将所有代码文件都放在src文件夹中
aux_source_directory(src DIR_SRCS)
add_executable(${PROJECT_NAME} ${DIR_SRCS})

#链接lib库生成exe，注意此句放到最后
target_link_libraries(${PROJECT_NAME} PRIVATE Qt${QT_VERSION_MAJOR}::Widgets ${OpenCV_LIBS})