Integration object detection using Latent SVM. Sample was added.

samples/c/latentsvmdetect.cpp

@@ -0,0 +1,49 @@
+#include "opencv2/objdetect/objdetect.hpp"
+#include "opencv2/core/core_c.h"
+#include "opencv2/highgui/highgui_c.h"
+#include <stdio.h>
+
+using namespace cv;
+
+const char* model_filename = "cat.xml";
+const char* image_filename = "000028.jpg";
+
+void detect_and_draw_objects( IplImage* image, CvLatentSvmDetector* detector)
+{
+    CvMemStorage* storage = cvCreateMemStorage(0);
+    CvSeq* detections = 0;
+    int i = 0;
+	int64 start = 0, finish = 0;
+
+	start = cvGetTickCount();
+    detections = cvLatentSvmDetectObjects(image, detector, storage);
+	finish = cvGetTickCount();
+	printf("detection time = %.3f\n", (float)(finish - start) / (float)(cvGetTickFrequency() * 1000000.0));
+
+    for( i = 0; i < detections->total; i++ )
+    {
+        CvObjectDetection detection = *(CvObjectDetection*)cvGetSeqElem( detections, i );
+		CvRect bounding_box = detection.rect;
+        cvRectangle( image, cvPoint(bounding_box.x, bounding_box.y),
+                     cvPoint(bounding_box.x + bounding_box.width, 
+							bounding_box.y + bounding_box.height),
+                     CV_RGB(255,0,0), 3 );
+    }
+    cvReleaseMemStorage( &storage );
+}
+
+
+int main(int argc, char* argv[])
+{
+	IplImage* image = cvLoadImage(image_filename);
+    CvLatentSvmDetector* detector = cvLoadLatentSvmDetector(model_filename);
+    detect_and_draw_objects( image, detector );
+    cvNamedWindow( "test", 0 );
+    cvShowImage( "test", image );
+    cvWaitKey(0);
+    cvReleaseLatentSvmDetector( &detector );
+    cvReleaseImage( &image );
+    cvDestroyAllWindows();
+    
+	return 0;
+}