implemented mean shift segmentation with elimination of small segments, added tests

2010-10-13 09:10:24 +00:00
parent 5386a8e7cb
commit 970dd7f593
3 changed files with 582 additions and 0 deletions
--- a/tests/gpu/src/mssegmentation.cpp
+++ b/tests/gpu/src/mssegmentation.cpp
@@ -0,0 +1,103 @@
+/*M///////////////////////////////////////////////////////////////////////////////////////
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+//                        Intel License Agreement
+//                For Open Source Computer Vision Library
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+
+#include <opencv2/opencv.hpp>
+#include <opencv2/gpu/gpu.hpp>
+#include <iostream>
+#include <string>
+#include <iosfwd>
+#include "gputest.hpp"
+using namespace cv;
+using namespace cv::gpu;
+using namespace std;
+
+struct CV_GpuMeanShiftSegmentationTest : public CvTest {
+    CV_GpuMeanShiftSegmentationTest() : CvTest( "GPU-MeanShiftSegmentation", "MeanShiftSegmentation" ) {}
+
+    void run(int) 
+    {
+        try 
+        {
+            Mat img_rgb = imread(string(ts->get_data_path()) + "meanshift/cones.png");
+            if (img_rgb.empty())
+            {
+                ts->set_failed_test_info(CvTS::FAIL_MISSING_TEST_DATA);
+                return;
+            }
+
+            Mat img;
+            cvtColor(img_rgb, img, CV_BGR2BGRA);
+
+            for (int minsize = 0; minsize < 2000; minsize = (minsize + 1) * 2) 
+            {
+                stringstream path;
+                path << ts->get_data_path() << "meanshift/cones_segmented_sp10_sr10_minsize" << minsize << ".png";
+
+                Mat dst;
+                meanShiftSegmentation((GpuMat)img, dst, 10, 10, minsize);
+                Mat dst_rgb;
+                cvtColor(dst, dst_rgb, CV_BGRA2BGR);
+
+                //imwrite(path.str(), dst_rgb);
+                Mat dst_ref = imread(path.str());
+                if (dst_ref.empty()) 
+                {
+                    ts->set_failed_test_info(CvTS::FAIL_MISSING_TEST_DATA);
+                    return;
+                }
+                if (abs(cv::norm(dst_rgb - dst_ref, NORM_INF)) > 1e-3) 
+                {
+                    ts->printf(CvTS::LOG, "\ndiffers from image *minsize%d.png\n", minsize);
+                    ts->set_failed_test_info(CvTS::FAIL_BAD_ACCURACY);
+                    return;
+                }
+            }
+        }
+        catch (const cv::Exception& e) 
+        {
+            if (!check_and_treat_gpu_exception(e, ts))
+                throw;
+            return;
+        }
+
+        ts->set_failed_test_info(CvTS::OK);
+    }    
+} ms_segm_test;