Fix Windows Visual Studio run with DLL path specified

CMakeLists.txt

@@ -14,15 +14,19 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 include(overlook.cmake)
 
 if(CMAKE_SYSTEM_NAME MATCHES "Windows")
-  set(OpenCV_DIR "D:/lib/opencv/4.5.5/build")
+  #set(OpenCV_DIR "D:/lib/opencv/4.5.5/build")
+  set(OpenCV_DIR "D:/artifacts/opencv/4.5.5/build")
 elseif(CMAKE_SYSTEM_NAME MATCHES "Linux")
   set(OpenCV_DIR "/home/zz/artifacts/opencv/linux-x64/4.5.5/lib/cmake/opencv4")
 endif()
 find_package(OpenCV REQUIRED)
 
 if(CMAKE_SYSTEM_NAME MATCHES "Windows")
-  set(Qt5_DIR "D:/soft/Qt/Qt5.14.2/5.14.2/msvc2017_64/lib/cmake/Qt5")
-  set(QT_DIR "D:/soft/Qt/Qt5.14.2/5.14.2/msvc2017_64/lib/cmake/Qt5")
+#   set(Qt5_DIR "D:/soft/Qt/Qt5.14.2/5.14.2/msvc2017_64/lib/cmake/Qt5")
+#   set(QT_DIR "D:/soft/Qt/Qt5.14.2/5.14.2/msvc2017_64/lib/cmake/Qt5")
+  set(QT_INSTALL_DIR "D:/artifacts/Qt/Qt5.14.0/5.14.0/msvc2017_64")
+  set(Qt5_DIR "${QT_INSTALL_DIR}/lib/cmake/Qt5")
+  set(QT_DIR "${Qt5_DIR}")
 endif()
 find_package(QT NAMES Qt6 Qt5 COMPONENTS Widgets REQUIRED)
 find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Widgets REQUIRED)
@@ -73,3 +77,7 @@ add_executable(testbed
   testbed.cpp
 )
 target_link_libraries(testbed image_compare_core)
+
+# On windows, have to manually put those two directories into PATH:
+message(STATUS ">>> OpenCV DLL path: ${OpenCV_DIR}/${OpenCV_ARCH}/${OpenCV_RUNTIME}/bin")
+message(STATUS ">>> QT DLL path: ${QT_INSTALL_DIR}/bin")

README.md

@@ -7,12 +7,22 @@ Beyond Compare 的个人重制版。
   - 显示差异图
   - 鼠标调节差异图阈值
 
+## 缘由
+实现和优化图像处理函数时比较结果图差异， 发现 Beyond Compare 加载的图像多次出现结果不对情况，例如要显示[assets/nvidia_logo.bmp](assets/nvidia_logo.bmp):
+
+![](assets/nvidia_logo.bmp)
+
+而 Beyond Compare 显示为棋盘格状的错误结果，进而导致和 [assets/nvidia_logo.png](assets/nvidia_logo.png) 的差异：
+![](assets/beyond_compare_show_image.png)
+
+而实际上两张图的像素并无差异（Small Compare比较结果， 基于 OpenCV 4.5 的图像编解码）:
+![](assets/small_compare_show_image.png)
+
 ## Build
 假定你熟悉基于 CMake 的 C/C++ 构建（不依赖 qmake）
 
-- 安装 Qt 环境
-    - Qt 库： 必选
-    - QtCreator: 可选
+- 安装 Qt 环境（Qt 库：必选；QtCreator: 可选）
+  - 以 VS2022 为例，安装 qt-opensource-windows-x86-5.14.0.exe，勾选 vs2017 x64 工具，安装得到 D:\artifacts\Qt\Qt5.14.0\5.14.0\msvc2017_64 目录）
 - 安装 OpenCV
     - 4.5.5
 - 开始编译
@@ -24,17 +34,6 @@ Beyond Compare 的个人重制版。
     ./ImageCompare  # 以后会改名叫 SmallCompare
     ```
 
-## 缘由
-实现和优化图像处理函数时比较结果图差异， 发现 Beyond Compare 加载的图像多次出现结果不对情况，例如要显示[assets/nvidia_logo.bmp](assets/nvidia_logo.bmp):
-
-![](assets/nvidia_logo.bmp)
-
-而 Beyond Compare 显示为棋盘格状的错误结果，进而导致和 [assets/nvidia_logo.png](assets/nvidia_logo.png) 的差异：
-![](assets/beyond_compare_show_image.png)
-
-而实际上两张图的像素并无差异（Small Compare比较结果， 基于 OpenCV 4.5 的图像编解码）:
-![](assets/small_compare_show_image.png)
-
 ## TODOs
 - 图片比较
   - 显示像素差异值分布的直方图