Open cv5 compatible

.github/copilot-instructions.md

@@ -0,0 +1,16 @@
+# Copilot instructions — itom plugins
+
+The tool-independent instructions for this repository live in
+[`AGENTS.md`](../AGENTS.md). **Read and follow that file.**
+
+Quick reminders:
+
+- A plugin = interface class (`ito::AddInInterfaceBase`) + implementation
+  (`ito::AddInDataIO`, `ito::AddInActuator` or `ito::AddInAlgo`) + own `CMakeLists.txt`.
+- Use `DummyGrabber`, `DummyMotor` and `BasicFilters` as reference implementations.
+- Return `ito::RetVal`; never let an exception escape a plugin method.
+- Always release the `ItomSharedSemaphore*` (`ItomSharedSemaphoreLocker`) on every path.
+- Declare parameters in `m_params` with meta info + doc string, validate in `setParam`
+  and emit `parametersChanged(m_params)`.
+- Do not modify the core API from here; do not include headers of other plugins.
+- Formatting via `.clang-format`; format only the lines you touch.

AGENTS.md

@@ -0,0 +1,64 @@
+# AGENTS.md — itom plugins
+
+Guidance for AI coding agents working in the **itom plugins** repository (hardware and
+algorithm plugins). Normally used as a submodule of `itomProject`.
+
+## Plugin anatomy
+
+Each plugin lives in its own folder and consists of:
+
+- `CMakeLists.txt` — target definition, Qt moc/uic, install rules
+- an **interface** class derived from `ito::AddInInterfaceBase`:
+  metadata (`m_type`, `m_description`, `m_detaildescription`, `m_author`, `m_license`),
+  mandatory/optional init parameters, `getAddInInst` / `closeThisInst`
+- an **implementation** class derived from one of
+  - `ito::AddInDataIO` — cameras, grabbers, serial/IO devices
+  - `ito::AddInActuator` — motors, stages
+  - `ito::AddInAlgo` — filters and algorithm widgets
+- optionally `dialog*` / `dockWidget*` UI classes and a `docs/` folder
+
+Reference implementations: `DummyGrabber`, `DummyMotor`, `BasicFilters`.
+Skeletons: `itom/pluginTemplates` in the core repository.
+
+## Hard rules
+
+1. **Never change the core API from here** — only consume it. If something is missing in
+   the core, say so instead of working around it.
+2. **`ito::RetVal` for all error handling**; no exception may leave a plugin method.
+3. **Semaphores:** every method that receives an `ItomSharedSemaphore* waitCond` must
+   release it on *every* code path — use `ItomSharedSemaphoreLocker locker(waitCond);`
+   and follow the pattern of the neighbouring plugins.
+4. **Threading:** plugin instances run in their own thread; do not touch GUI objects
+   directly, use signals (`parametersChanged`, `actuatorStatusChanged`,
+   `targetChanged`, `newDataAvailable`).
+5. **Parameters:** declare all parameters in the constructor in `m_params` with
+   meta information and documentation strings; keys are lowerCamelCase and stable.
+   `setParam` must validate via `apiValidateParam` and emit `parametersChanged`.
+6. **DataObject outputs:** allocate/resize via `checkData()`, keep axis and tag meta
+   data (`setAxisUnit`, `setAxisScale`, `setValueUnit`, `setTag`) up to date.
+7. **Third party SDKs** are found via the CMake modules in `cmake/`; do not vendor
+   binaries and do not hard-code SDK paths.
+
+## Style
+
+- `.clang-format` (`BasedOnStyle: Microsoft`, 4 spaces, `ColumnLimit: 100`,
+  `PointerAlignment: Left`). Format only the lines you change.
+- English identifiers and comments; user visible strings via `tr(...)`.
+- Keep each plugin self-contained — no cross-plugin includes.
+
+## Build
+
+Plugins are built as part of `itomProject` with `BUILD_ITOM_PLUGINS=ON`.
+Build only the plugin target you changed:
+
+```powershell
+cmake --build <build>/itomProject --config Debug --target <PluginName>
+```
+
+Never edit files inside the CMake binary directory.
+
+## Quality gates
+
+`pre-commit`: `check-yaml`, `end-of-file-fixer`, `trailing-whitespace`,
+`fix-byte-order-marker`, `codespell`, `pyupgrade --py36-plus`, `sphinx-lint`.
+Files end with a single newline, no trailing whitespace, no BOM.

AerotechA3200/CMakeLists.txt

@@ -18,7 +18,12 @@ endif(NOT EXISTS ${ITOM_SDK_DIR})
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${ITOM_SDK_DIR}/cmake)
 
 find_package(ITOM_SDK COMPONENTS dataobject itomCommonLib itomCommonQtLib REQUIRED)
-find_package(OpenCV COMPONENTS core REQUIRED)
+find_package(OpenCV REQUIRED COMPONENTS core REQUIRED)
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 
 include(ItomBuildMacros)
 itom_init_cmake_policy(3.12)

AndorSDK3/CMakeLists.txt

@@ -20,7 +20,12 @@ endif(NOT EXISTS ${ITOM_SDK_DIR})
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${ITOM_SDK_DIR}/cmake)
 
 find_package(ITOM_SDK COMPONENTS dataobject itomCommonLib itomCommonQtLib itomWidgets REQUIRED)
-find_package(OpenCV COMPONENTS core REQUIRED) #if you require openCV indicate all components that are required (e.g. core, imgproc...)
+find_package(OpenCV REQUIRED COMPONENTS core REQUIRED) #if you require openCV indicate all components that are required (e.g. core, imgproc...)
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 
 include(ItomBuildMacros)
 itom_init_cmake_policy(3.12)

BasicFilters/CMakeLists.txt

@@ -19,7 +19,12 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${ITOM_SDK_DIR}/cmake)
 
 find_package(ITOM_SDK COMPONENTS dataobject itomCommonLib itomCommonQtLib REQUIRED)
-find_package(OpenCV COMPONENTS core imgproc REQUIRED)
+find_package(OpenCV REQUIRED COMPONENTS core imgproc REQUIRED)
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 
 include(ItomBuildMacros)
 itom_init_cmake_policy(3.12)

BasicGPLFilters/CMakeLists.txt

@@ -20,7 +20,12 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${ITOM_SDK_DIR}/cmake)
 
 find_package(ITOM_SDK COMPONENTS dataobject itomCommonLib itomCommonQtLib REQUIRED)
-find_package(OpenCV COMPONENTS core REQUIRED)
+find_package(OpenCV REQUIRED COMPONENTS core REQUIRED)
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 
 include(ItomBuildMacros)
 itom_init_cmake_policy(3.12)

CLAUDE.md

@@ -0,0 +1,3 @@
+# CLAUDE.md
+
+**Follow the rules in @AGENTS.md.**

CommonVisionBlox/CMakeLists.txt

@@ -35,7 +35,12 @@ if(CVB_HEADER_FILE)
     set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${ITOM_SDK_DIR}/cmake)
 
     find_package(ITOM_SDK COMPONENTS dataobject itomCommonLib itomCommonQtLib itomWidgets REQUIRED)
-    find_package(OpenCV COMPONENTS core REQUIRED) #if you require openCV indicate all components that are required (e.g. core, imgproc...)
+    find_package(OpenCV REQUIRED COMPONENTS core REQUIRED) #if you require openCV indicate all components that are required (e.g. core, imgproc...)
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 
     include(ItomBuildMacros)
     itom_init_cmake_policy(3.12)

CyUSB/CMakeLists.txt

@@ -23,7 +23,12 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${ITOM_SDK_DIR}/cmake)
 
 find_package(ITOM_SDK COMPONENTS dataobject itomCommonLib itomCommonQtLib itomWidgets REQUIRED)
-find_package(OpenCV COMPONENTS core REQUIRED)
+find_package(OpenCV REQUIRED COMPONENTS core REQUIRED)
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 find_package(CyAPI QUIET)
 
 include(ItomBuildMacros)

DIC/CMakeLists.txt

@@ -31,7 +31,12 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${ITOM_SDK_DIR}/cmake)
 
 find_package(ITOM_SDK COMPONENTS dataobject itomCommonLib itomCommonQtLib itomWidgets REQUIRED)
-find_package(OpenCV COMPONENTS core imgproc REQUIRED) #if you require openCV indicate all components that are required (e.g. core, imgproc...),
+find_package(OpenCV REQUIRED COMPONENTS core imgproc REQUIRED) #if you require openCV indicate all components that are required (e.g. core, imgproc...),
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 find_package(VisualLeakDetector QUIET) #silently detects the VisualLeakDetector for Windows (memory leak detector, optional)
 find_package(Eigen REQUIRED)
 

DIC/matlab/CMakeLists.txt

@@ -23,7 +23,12 @@ SET (CMAKE_DEBUG_POSTFIX "d" CACHE STRING "Adds a postfix for debug-built librar
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 SET (CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${ITOM_SDK_DIR})
 
-find_package(OpenCV COMPONENTS core imgproc REQUIRED) #if you require openCV indicate all components that are required (e.g. core, imgproc...),
+find_package(OpenCV REQUIRED COMPONENTS core imgproc REQUIRED) #if you require openCV indicate all components that are required (e.g. core, imgproc...),
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 
 #try to enable OpenMP (e.g. not available with VS Express)
 find_package(OpenMP QUIET)

DataObjectIO/CMakeLists.txt

@@ -20,7 +20,12 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${ITOM_SDK_DIR}/cmake)
 
 find_package(ITOM_SDK COMPONENTS dataobject itomCommonLib itomCommonQtLib REQUIRED)
-find_package(OpenCV COMPONENTS core highgui REQUIRED)
+find_package(OpenCV REQUIRED COMPONENTS core highgui REQUIRED)
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 if(OpenCV_VERSION_MAJOR GREATER 2)
     # for opencv >= 3 we need the imgcodecs module which is not present in opencv < 3 so run again
     find_package(OpenCV COMPONENTS core highgui imgcodecs REQUIRED)

DataObjectIO/DataObjectIO.cpp

@@ -43,10 +43,22 @@
 
 #include "opencv2/highgui/highgui.hpp"
 
-#if CV_MAJOR_VERSION >= 4
-#include "opencv2//imgcodecs/legacy/constants_c.h"
+#if defined(CV_MAJOR_VERSION) && (CV_MAJOR_VERSION == 4)
+#include "opencv2/imgcodecs/legacy/constants_c.h"
 #include "opencv2/imgproc/imgproc_c.h"
 #include "opencv2/imgproc/types_c.h"
+#elif defined(CV_MAJOR_VERSION) && (CV_MAJOR_VERSION >= 5)
+// OpenCV 5 removed many legacy C headers — include modern C++ headers instead
+#include "opencv2/imgcodecs.hpp"
+#include "opencv2/imgproc.hpp"
+#elif !defined(CV_MAJOR_VERSION)
+// Build without OpenCV version macro defined; assume modern C++ headers are available.
+#include "opencv2/imgcodecs.hpp"
+#include "opencv2/imgproc.hpp"
+#else
+// Fallback for older OpenCV versions
+#include "opencv2/imgcodecs.hpp"
+#include "opencv2/imgproc.hpp"
 #endif
 
 #include "common/sharedFunctionsQt.h"
@@ -3898,7 +3910,7 @@ ito::RetVal DataObjectIO::saveDataObjectOpenCV(
         break;
 
     case DataObjectIO::ppmFormat:
-        save_params.push_back(CV_IMWRITE_PXM_BINARY);
+        save_params.push_back(cv::IMWRITE_PXM_BINARY);
         save_params.push_back((*paramsOpt)[0].getVal<int>());
         checkAndModifyFilenameSuffix(fileName, "ppm");
         gray16Supported = false;
@@ -3907,7 +3919,7 @@ ito::RetVal DataObjectIO::saveDataObjectOpenCV(
 
     case DataObjectIO::pgmFormat:
 
-        save_params.push_back(CV_IMWRITE_PXM_BINARY);
+        save_params.push_back(cv::IMWRITE_PXM_BINARY);
         save_params.push_back((*paramsOpt)[0].getVal<int>());
         gray16Supported = true;
         colorSupported = false;
@@ -3920,7 +3932,7 @@ ito::RetVal DataObjectIO::saveDataObjectOpenCV(
 
     case DataObjectIO::jpgFormat:
     case DataObjectIO::jp2000Format:
-        save_params.push_back(CV_IMWRITE_JPEG_QUALITY);
+        save_params.push_back(cv::IMWRITE_JPEG_QUALITY);
         save_params.push_back((*paramsOpt)[0].getVal<int>());
         checkAndModifyFilenameSuffix(fileName, "jpg", "jpeg", "jp2");
 
@@ -3942,7 +3954,7 @@ ito::RetVal DataObjectIO::saveDataObjectOpenCV(
         break;
 
     case DataObjectIO::pngFormat:
-        save_params.push_back(CV_IMWRITE_PNG_COMPRESSION);
+        save_params.push_back(cv::IMWRITE_PNG_COMPRESSION);
         save_params.push_back((*paramsOpt)[0].getVal<int>());
         checkAndModifyFilenameSuffix(fileName, "png");
         addAlpha = (*paramsOpt)[1].getVal<int>() != 0 ? true : false;
@@ -4848,13 +4860,13 @@ ito::RetVal DataObjectIO::loadImage(
 
         if (colorFormat.isEmpty() || colorFormat.compare("asIs", Qt::CaseInsensitive) == 0)
         {
-            flags = CV_LOAD_IMAGE_ANYDEPTH;
+            flags = cv::IMREAD_ANYDEPTH;
             flags *= -1;
             reduceChannel = false;
         }
         else if (colorFormat.compare("alpha", Qt::CaseInsensitive) == 0)
         {
-            flags = CV_LOAD_IMAGE_COLOR | CV_LOAD_IMAGE_ANYDEPTH;
+            flags = cv::IMREAD_COLOR | cv::IMREAD_ANYDEPTH;
             flags *= -1;
             reduceChannel = true;
         }
@@ -4863,22 +4875,22 @@ ito::RetVal DataObjectIO::loadImage(
             colorFormat.compare("G", Qt::CaseInsensitive) == 0 ||
             colorFormat.compare("B", Qt::CaseInsensitive) == 0)
         {
-            flags = CV_LOAD_IMAGE_COLOR | CV_LOAD_IMAGE_ANYDEPTH;
+            flags = cv::IMREAD_COLOR | cv::IMREAD_ANYDEPTH;
             flags *= -1;
             reduceChannel = true;
         }
         else if (
             colorFormat.compare("gray", Qt::CaseInsensitive) == 0 ||
             colorFormat.compare("grey", Qt::CaseInsensitive) == 0)
         {
-            flags = CV_LOAD_IMAGE_GRAYSCALE | CV_LOAD_IMAGE_ANYDEPTH;
+            flags = cv::IMREAD_GRAYSCALE | cv::IMREAD_ANYDEPTH;
 
             reduceChannel = false;
         }
         else
         {
             reduceChannel = false;
-            flags = CV_LOAD_IMAGE_COLOR;
+            flags = cv::IMREAD_COLOR;
             flags *= -1;
         }
 

DummyGrabber/CMakeLists.txt

@@ -20,7 +20,12 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${ITOM_SDK_DIR}/cmake)
 
 find_package(ITOM_SDK COMPONENTS dataobject itomCommonLib itomCommonQtLib itomWidgets REQUIRED)
-find_package(OpenCV COMPONENTS core REQUIRED)
+find_package(OpenCV REQUIRED COMPONENTS core REQUIRED)
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 
 include(ItomBuildMacros)
 itom_init_cmake_policy(3.12)

DummyMotor/CMakeLists.txt

@@ -20,7 +20,12 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${ITOM_SDK_DIR}/cmake)
 
 find_package(ITOM_SDK COMPONENTS dataobject itomCommonLib itomCommonQtLib itomWidgets REQUIRED)
-find_package(OpenCV COMPONENTS core REQUIRED)
+find_package(OpenCV REQUIRED COMPONENTS core REQUIRED)
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 
 include(ItomBuildMacros)
 itom_init_cmake_policy(3.12)

FFTWfilters/CMakeLists.txt

@@ -19,7 +19,12 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${ITOM_SDK_DIR}/cmake)
 
 find_package(ITOM_SDK COMPONENTS dataobject itomCommonLib itomCommonQtLib REQUIRED)
-find_package(OpenCV COMPONENTS core REQUIRED)
+find_package(OpenCV REQUIRED COMPONENTS core REQUIRED)
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 find_package(FFTW 3)
 
 include(ItomBuildMacros)

FileGrabber/CMakeLists.txt

@@ -26,7 +26,12 @@ itom_init_plugin_library(${target_name}) #Start the project, init compiler setti
 itom_find_package_qt(ON Core Widgets Xml LinguistTools)
 
 #run once so we get the installed opencv version
-find_package(OpenCV COMPONENTS core highgui REQUIRED)
+find_package(OpenCV REQUIRED COMPONENTS core highgui REQUIRED)
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 if(OpenCV_VERSION_MAJOR GREATER 2)
     # for opencv >= 3 we need the imgcodecs module which is not present in opencv < 3 so run again
     find_package(OpenCV COMPONENTS core highgui imgcodecs REQUIRED)

FittingFilters/CMakeLists.txt

@@ -20,7 +20,12 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR} ${ITOM_SDK_DIR}/cmake)
 
 find_package(ITOM_SDK COMPONENTS dataobject itomCommonLib itomCommonQtLib REQUIRED)
-find_package(OpenCV COMPONENTS core imgproc REQUIRED)
+find_package(OpenCV REQUIRED COMPONENTS core imgproc REQUIRED)
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 find_package(LAPACKE)
 find_package(OpenMP QUIET)
 

GenICam/CMakeLists.txt

@@ -20,7 +20,12 @@ set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT
 
 find_package(ITOM_SDK COMPONENTS dataobject itomCommonLib itomCommonQtLib itomWidgets REQUIRED)
 find_package(GenICam QUIET) #located in CMAKE_CURRENT_SOURCE_DIR
-find_package(OpenCV COMPONENTS imgproc REQUIRED)
+find_package(OpenCV REQUIRED COMPONENTS imgproc REQUIRED)
+
+# Verify OpenCV version is 3.0 or higher
+if(OpenCV_VERSION VERSION_LESS "3.0")
+	message(FATAL_ERROR "OpenCV version ${OpenCV_VERSION} found, but version 3.0 or higher is required (supports 3.x, 4.x, and 5.0+)")
+endif()
 
 include(ItomBuildMacros)
 itom_init_cmake_policy(3.12)