add dll version and its usage

LibEasyOCR-CPP/EasyOCR_Detector.h

@@ -0,0 +1,51 @@
+#pragma once
+#include <vector>
+#include "OCRToolBox.h"
+#include <opencv2/opencv.hpp>
+#include <onnxruntime_cxx_api.h>
+
+namespace uns
+{
+	class EasyOCR_Detector
+	{
+	private:
+		const float lowText = 0.4f;
+		const float textThreshold = 0.7f;
+		const float linkThreshold = 0.4f;
+
+	private:
+		const OrtApi* ort;
+
+		Ort::Env ort_env;
+		Ort::Session* ort_cpu_session;
+		Ort::SessionOptions ort_session_options;
+
+		bool ort_inited;
+		std::wstring model_path;
+
+		IONames input_names, output_names;
+		IONamesStorage input_ns, output_ns;
+
+	private:
+		cv::Mat NormalizeMeanVariance(const cv::Mat& in);
+		void AdjustResultCoordinates(EOCRD_Rects& polys, float ratioW, float ratioH, float ratioNet = 2.0f);
+		void ResizeAspectRatio(const cv::Mat& src, cv::Mat& dst, float squareSize, float magRatio, float& ratio, cv::Size& heatmapSize);
+		bool GetDetBoxesCore(const cv::Mat& textmap, const cv::Mat& linkmap, float textThresh, float linkThresh, float lowText, EOCRD_Rects& boxes, cv::Mat& labels, std::vector<int>& mapper, bool estimateNumChars);
+
+	public:
+		EasyOCR_Detector();
+		EasyOCR_Detector(const EasyOCR_Detector&) = delete;
+
+	public:
+		bool Init();
+		bool UnInit();
+		bool RecheckModelInfo();
+		/// <summary>
+		/// EasyOCR 文本检测函数
+		/// </summary>
+		/// <param name="image">待检测的图像（三通道BGR图像）</param>
+		/// <returns>检测到的矩形框</returns>
+		EOCRD_Rects operator()(const cv::Mat& image);
+	};
+}
+