fix for missing gpu.hpp when compiling with opencv 3.x and -D COMPILE…

…_GPU=1

src/openalpr/detection/detectorcuda.cpp

@@ -31,8 +31,11 @@ namespace alpr
   DetectorCUDA::DetectorCUDA(Config* config, PreWarp* prewarp) : Detector(config, prewarp) {
 
 
-
+#if OPENCV_MAJOR_VERSION == 2
     if( this->cuda_cascade.load( get_detector_file() ) )
+#else
+    if( this->cuda_cascade->create( get_detector_file() ) )
+#endif
     {
       this->loaded = true;
       printf("--(!)Loaded CUDA classifier\n");
@@ -56,13 +59,28 @@ namespace alpr
     timespec startTime;
     getTimeMonotonic(&startTime);
 
+#if OPENCV_MAJOR_VERSION == 2
     gpu::GpuMat cudaFrame, plateregions_buffer;
+#else
+    cuda::GpuMat cudaFrame, plateregions_buffer;
+#endif
     Mat plateregions_downloaded;
 
     cudaFrame.upload(frame);
+#if OPENCV_MAJOR_VERSION == 2
     int numdetected = cuda_cascade.detectMultiScale(cudaFrame, plateregions_buffer, 
             (double) config->detection_iteration_increase, config->detectionStrictness, 
             min_plate_size);
+#else
+    cuda_cascade->setScaleFactor((double) config->detection_iteration_increase);
+    cuda_cascade->setMinNeighbors(config->detectionStrictness);
+    cuda_cascade->setMinObjectSize(min_plate_size);
+	cuda_cascade->detectMultiScale(cudaFrame,
+			plateregions_buffer);
+	std::vector<Rect> detected;
+	cuda_cascade->convert(plateregions_buffer, detected);
+	int numdetected = detected.size();
+#endif
 
     plateregions_buffer.colRange(0, numdetected).download(plateregions_downloaded);
 
@@ -83,4 +101,4 @@ namespace alpr
 
 }
 
-#endif
+#endif

src/openalpr/detection/detectorcuda.h

@@ -29,7 +29,11 @@
 #include "opencv2/imgproc/imgproc.hpp"
 #include "opencv2/core/core.hpp"
 #include "opencv2/ml/ml.hpp"
+#if OPENCV_MAJOR_VERSION == 2
 #include "opencv2/gpu/gpu.hpp"
+#else
+#include "opencv2/cudaobjdetect.hpp"
+#endif
 
 #include "detector.h"
 #include "detectorcpu.h"
@@ -48,8 +52,11 @@ namespace alpr
 
   private:
 
+#if OPENCV_MAJOR_VERSION == 2
       cv::gpu::CascadeClassifier_GPU cuda_cascade;
-
+#else
+      cv::Ptr<cv::cuda::CascadeClassifier> cuda_cascade;
+#endif
   };
 
 }