From cec641fb831c85975d322de519fe0ec101aba53b Mon Sep 17 00:00:00 2001
From: Alexander Reshetnikov <no@email>
Date: Fri, 20 Jan 2012 16:21:27 +0000
Subject: [PATCH] completed test for boundingRect function

---
 modules/imgproc/test/test_boundingrect.cpp | 84 ++++++++++++++++++++++++++----
 1 file changed, 75 insertions(+), 9 deletions(-)

diff --git a/modules/imgproc/test/test_boundingrect.cpp b/modules/imgproc/test/test_boundingrect.cpp
index d150a89..cf29d2e 100644
--- a/modules/imgproc/test/test_boundingrect.cpp
+++ b/modules/imgproc/test/test_boundingrect.cpp
@@ -1,5 +1,10 @@
 #include "test_precomp.hpp"
 #include <time.h>
+#include <iostream>
+
+#define IMGPROC_BOUNDINGRECT_ERROR_DIFF 1
+
+#define MESSAGE_ERROR_DIFF "Bounding rectangle found by boundingRect function is incorrect."
 
 using namespace cv;
 using namespace std;
@@ -14,25 +19,86 @@ class CV_BoundingRectTest: public cvtest::ArrayTest
 	void run (int);
 	
  private:
-
+	template <class T> void generate_src_points(vector <Point_<T> >& src, int n);
+	template <class T> cv::Rect get_bounding_rect(const vector <Point_<T> > src);
+	template <class T> bool checking_function_work(vector <Point_<T> >& src, int type);
 };
 
 CV_BoundingRectTest::CV_BoundingRectTest() {}
 CV_BoundingRectTest::~CV_BoundingRectTest() {}
 
-void CV_BoundingRectTest::run(int)
+template <class T> void CV_BoundingRectTest::generate_src_points(vector <Point_<T> >& src, int n)
+{
+ src.clear();
+ for (size_t i = 0; i < n; ++i) 
+ src.push_back(Point_<T>(cv::randu<T>(), cv::randu<T>()));
+}
+
+template <class T> cv::Rect CV_BoundingRectTest::get_bounding_rect(const vector <Point_<T> > src)
 {
- const int MAX_WIDTH = 100;
- const int MAX_HEIGHT = 100;
- const int N = 100;
+ int n = src.size();
+ T min_w = std::numeric_limits<T>::max(), max_w = std::numeric_limits<T>::min();
+ T min_h = min_w, max_h = max_w;
+
+ for (size_t i = 0; i < n; ++i) 
+ {
+  min_w = std::min<T>(src.at(i).x, min_w);
+  max_w = std::max<T>(src.at(i).x, max_w);
+  min_h = std::min<T>(src.at(i).y, min_h);
+  max_h = std::max<T>(src.at(i).y, max_h);
+ }
+
+ return Rect((int)min_w, (int)min_h, (int)(floor(1.0*(max_w-min_w)) + 1), (int)(floor(1.0*(max_h-min_h)) + 1));
+}
 
- RNG& rng = ts->get_rng();
+template <class T> bool CV_BoundingRectTest::checking_function_work(vector <Point_<T> >& src, int type)
+{
+ const int MAX_COUNT_OF_POINTS = 1000;
+ const int N = 10000;
 
- for (size_t i = 0; i < N; ++i)
+ for (int k = 0; k < N; ++k)
  {
-  int w = rng.next()%MAX_WIDTH + 1, h = rng.next()%MAX_HEIGHT + 1;
-  cv::Mat src(h, w, CV_8U); cv::randu(src, Scalar_<bool>::all(false), Scalar_<bool>::all(true));
+
+  RNG& rng = ts->get_rng();
+
+  int n = rng.next()%MAX_COUNT_OF_POINTS + 1;
+
+  generate_src_points <T> (src, n);
+
+  cv::Rect right = get_bounding_rect <T> (src);
+
+  cv::Rect rect[2] = { boundingRect(src), boundingRect(Mat(src)) };
+ 
+  for (int i = 0; i < 2; ++i) if (rect[i] != right)
+  {
+   cout << endl; cout << "Checking for the work of boundingRect function..." << endl;
+   cout << "Type of src points: "; 
+   switch (type)
+   {
+    case 0: {cout << "INT"; break;}
+    case 1: {cout << "FLOAT"; break;}
+    case 2: {cout << "DOUBLE"; break;}
+    default: break;
+   }
+   cout << endl;
+   cout << "Src points are stored as "; if (i == 0) cout << "VECTOR" << endl; else cout << "MAT" << endl;
+   cout << "Number of points: " << n << endl;
+   cout << "Right rect (x, y, w, h): [" << right.x << ", " << right.y << ", " << right.width << ", " << right.height << "]" << endl;
+   cout << "Result rect (x, y, w, h): [" << rect[i].x << ", " << rect[i].y << ", " << rect[i].width << ", " << rect[i].height << "]" << endl;
+   cout << endl;
+   CV_Error(IMGPROC_BOUNDINGRECT_ERROR_DIFF, MESSAGE_ERROR_DIFF);
+   return false;
+  }
+
  }
+
+ return true;
+}
+
+void CV_BoundingRectTest::run(int)
+{
+ vector <Point> src_veci; if (!checking_function_work(src_veci, 0)) return;
+ vector <Point2f> src_vecf; checking_function_work(src_vecf, 1);
 }
 
 TEST (Imgproc_BoundingRect, accuracy) { CV_BoundingRectTest test; test.safe_run(); }
\ No newline at end of file
-- 
2.7.4