Improve ALPR_OCR peformance

modules/ANSOCR/ANSONNXOCR/ONNXOCRDetector.h

@@ -11,6 +11,9 @@ namespace onnxocr {
 class ONNXOCRDetector : public BasicOrtHandler {
 public:
     explicit ONNXOCRDetector(const std::string& onnx_path, unsigned int num_threads = 1);
+    explicit ONNXOCRDetector(const std::string& onnx_path,
+                             const OrtHandlerOptions& options,
+                             unsigned int num_threads = 1);
     ~ONNXOCRDetector() override = default;
 
     // Run text detection on an image
@@ -21,7 +24,12 @@ public:
                                 float unclipRatio = kDetUnclipRatio,
                                 bool useDilation  = false);
 
+    // Pre-warm cuDNN/TRT at a canonical 320x320 input so the first real
+    // call doesn't pay the algorithm-selection tax. Idempotent.
+    void Warmup();
+
 private:
+    bool _warmedUp = false;
     Ort::Value transform(const cv::Mat& mat) override;
     Ort::Value transformBatch(const std::vector<cv::Mat>& images) override;