can render 2 cv::mats

lib/imaging/CMakeLists.txt

@@ -0,0 +1,23 @@
+include(${CMAKE_SOURCE_DIR}/cmake/libCZI.cmake)
+
+find_package(OpenCV REQUIRED)
+
+message(STATUS "Found opencv: " ${OpenCV_INCLUDE_DIRS})
+message(STATUS "OpenCV_LIBs from: " ${OpenCV_LIBS})
+
+set(IMAGELIBSRC
+  Image.cpp)
+
+set(IMAGELIBLIBNAME pixelariumimagelib)
+
+add_library(${IMAGELIBLIBNAME}
+  STATIC ${IMAGELIBSRC})
+
+target_link_libraries(${IMAGELIBLIBNAME}
+  PUBLIC ${OpenCV_LIBS}
+  PRIVATE libCZIStatic)
+
+
+target_include_directories(${IMAGELIBLIBNAME}
+  PUBLIC ${OpenCV_INCLUDE_DIRS}
+  PRIVATE ${LIBCZI_INCLUDE_DIR})

lib/imaging/Image.cpp

@@ -0,0 +1,15 @@
+#include "Image.hpp"
+
+#include <filesystem>
+#include <opencv2/imgcodecs.hpp>
+#include <stdexcept>
+
+pixelarium::imaging::Image::Image(const std::string& uri)
+{
+    if (!std::filesystem::exists(uri))
+    {
+        throw std::runtime_error("File not found");
+    }
+
+    this->_img = cv::imread(uri);
+}

lib/imaging/Image.hpp

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <filesystem>
+#include <memory>
+#include <opencv2/core/mat.hpp>
+#include <opencv2/imgproc.hpp>
+#include <opencv2/opencv.hpp>
+#include <string>
+
+namespace pixelarium::imaging
+{
+class Image
+{
+   public:
+
+    explicit Image(const std::string& uri);
+
+    // get back the defaults
+    Image() = default;
+    Image(const Image& other) = default;
+    Image(Image&& other) noexcept = default;
+    Image& operator=(const Image& other) = default;
+    Image& operator=(Image&& other) noexcept = default;
+    ~Image() = default;
+
+    const cv::Mat& GetImage() const { return this->_img; }
+
+   private:
+    cv::Mat _img;
+};
+
+}  // namespace pixelarium::imaging