Java API: added tests for SiftDescriptorExtractor and OrbDescriptorExtractor

modules/java/android_test/src/org/opencv/test/features2d/BRIEFDescriptorExtractorTest.java

@@ -41,7 +41,6 @@ public class BRIEFDescriptorExtractorTest extends OpenCVTestCase {
         Mat descriptors = new Mat();
 
         extractor.compute(img, keypoints, descriptors);
-        OpenCVTestRunner.Log(descriptors);
 
         Mat truth = new Mat(1, 32, CvType.CV_8UC1) {
             {
@@ -50,7 +49,7 @@ public class BRIEFDescriptorExtractorTest extends OpenCVTestCase {
             }
         };
 
-        assertMatEqual(truth, descriptors, EPS);
+        assertMatEqual(truth, descriptors);
     }
 
     public void testCreate() {

modules/java/android_test/src/org/opencv/test/features2d/ORBDescriptorExtractorTest.java

+package org.opencv.test.features2d;
+
+import org.opencv.core.Core;
+import org.opencv.core.CvType;
+import org.opencv.core.Mat;
+import org.opencv.core.Point;
+import org.opencv.core.Scalar;
+import org.opencv.features2d.DescriptorExtractor;
+import org.opencv.features2d.KeyPoint;
+import org.opencv.test.OpenCVTestCase;
+import org.opencv.test.OpenCVTestRunner;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class ORBDescriptorExtractorTest extends OpenCVTestCase {
+
+    DescriptorExtractor extractor;
+    int matSize;
+
+    private Mat getTestImg() {
+        Mat cross = new Mat(matSize, matSize, CvType.CV_8U, new Scalar(255));
+        Core.line(cross, new Point(20, matSize / 2), new Point(matSize - 21, matSize / 2), new Scalar(100), 2);
+        Core.line(cross, new Point(matSize / 2, 20), new Point(matSize / 2, matSize - 21), new Scalar(100), 2);
+
+        return cross;
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        extractor = DescriptorExtractor.create(DescriptorExtractor.ORB);
+        matSize = 100;
+
+        super.setUp();
+    }
+
+    public void testCompute() {
+        KeyPoint point = new KeyPoint(55.775577545166016f, 44.224422454833984f, 16, 9.754629f, 8617.863f, 1, -1);
+        List<KeyPoint> keypoints = Arrays.asList(point);
+        Mat img = getTestImg();
+        Mat descriptors = new Mat();
+
+        extractor.compute(img, keypoints, descriptors);
+
+        Mat truth = new Mat(1, 32, CvType.CV_8UC1) {
+            {
+                put(0, 0, 20, 51, 88, 22, 14, 181, 78, 111, 36, 144, 62, 0, 188, 196, 4, 8, 133, 80, 96, 18, 64, 29, 0,
+                        254, 230, 247, 12, 2, 78, 129, 70, 145);
+            }
+        };
+        assertMatEqual(truth, descriptors);
+    }
+
+    public void testCreate() {
+        assertNotNull(extractor);
+    }
+
+    public void testDescriptorSize() {
+        assertEquals(32, extractor.descriptorSize());
+    }
+
+    public void testDescriptorType() {
+        assertEquals(CvType.CV_8U, extractor.descriptorType());
+    }
+
+    public void testEmpty() {
+        assertFalse(extractor.empty());
+    }
+
+    public void testRead() {
+        KeyPoint point = new KeyPoint(55.775577545166016f, 44.224422454833984f, 16, 9.754629f, 8617.863f, 1, -1);
+        List<KeyPoint> keypoints = Arrays.asList(point);
+        Mat img = getTestImg();
+        Mat descriptors = new Mat();
+        
+        String filename = OpenCVTestRunner.getTempFileName("yml");
+        writeFile(filename, "%YAML:1.0\nscaleFactor: 1.1\nnLevels: 3\nfirstLevel: 0\nedgeThreshold: 31\npatchSize: 31\n");
+        extractor.read(filename);
+        
+        extractor.compute(img, keypoints, descriptors);
+
+        Mat truth = new Mat(1, 32, CvType.CV_8UC1) {
+            {
+                put(0, 0, 20, 55, 88, 20, 14, 49, 70, 111, 148, 144, 30, 16, 252, 133, 0, 8, 5, 85, 32, 0, 74, 25, 0,
+                                                      252, 119, 191, 4, 2, 66, 1, 66, 145);
+            }
+        };
+        assertMatEqual(truth, descriptors);
+    }
+
+    public void testWrite() {
+        String filename = OpenCVTestRunner.getTempFileName("xml");
+
+        extractor.write(filename);
+
+        String truth = "<?xml version=\"1.0\"?>\n<opencv_storage>\n<scaleFactor>1.2000000476837158e+00</scaleFactor>\n<nLevels>3</nLevels>\n<firstLevel>0</firstLevel>\n<edgeThreshold>31</edgeThreshold>\n<patchSize>31</patchSize>\n</opencv_storage>\n";
+        assertEquals(truth, readFile(filename));
+    }
+
+    public void testWriteYml() {
+        String filename = OpenCVTestRunner.getTempFileName("yml");
+
+        extractor.write(filename);
+
+        String truth = "%YAML:1.0\nscaleFactor: 1.2000000476837158e+00\nnLevels: 3\nfirstLevel: 0\nedgeThreshold: 31\npatchSize: 31\n";
+        assertEquals(truth, readFile(filename));
+    }
+
+}

modules/java/android_test/src/org/opencv/test/features2d/SIFTDescriptorExtractorTest.java

+package org.opencv.test.features2d;
+
+import org.opencv.core.Core;
+import org.opencv.core.CvType;
+import org.opencv.core.Mat;
+import org.opencv.core.Point;
+import org.opencv.core.Scalar;
+import org.opencv.features2d.DescriptorExtractor;
+import org.opencv.features2d.KeyPoint;
+import org.opencv.test.OpenCVTestCase;
+import org.opencv.test.OpenCVTestRunner;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class SIFTDescriptorExtractorTest extends OpenCVTestCase {
+
+    DescriptorExtractor extractor;
+    KeyPoint keypoint;
+    Mat truth;
+    int matSize;
+
+    private Mat getTestImg() {
+        Mat cross = new Mat(matSize, matSize, CvType.CV_8U, new Scalar(255));
+        Core.line(cross, new Point(20, matSize / 2), new Point(matSize - 21, matSize / 2), new Scalar(100), 2);
+        Core.line(cross, new Point(matSize / 2, 20), new Point(matSize / 2, matSize - 21), new Scalar(100), 2);
+
+        return cross;
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        extractor = DescriptorExtractor.create(DescriptorExtractor.SIFT);
+        keypoint = new KeyPoint(55.775577545166016f, 44.224422454833984f, 16, 9.754629f, 8617.863f, 1, -1);
+        matSize = 100;
+        truth = new Mat(1, 128, CvType.CV_32FC1) {
+            {
+                put(0,0, 123, 0, 0, 1, 123, 0, 0, 1, 123, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+                        0, 0, 0, 123, 0, 0, 2, 123, 0, 0, 2, 123, 0, 0, 0, 0, 0, 0, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 123, 30,
+                        7, 31, 123, 0, 0, 0, 123, 52, 88, 0, 0, 0, 0, 0, 0, 2, 123, 0, 0, 0, 0, 0, 0, 1, 110, 0, 0, 0, 0, 0, 18, 37, 18, 34, 16,
+                        21, 12, 23, 12, 50, 123, 0, 0, 0, 90, 26, 0, 3, 123, 0, 0, 1, 122, 0, 0, 2, 123, 0, 0, 1, 93, 0);
+            }
+        };
+
+        super.setUp();
+    }
+
+    public void testCompute() {
+        List<KeyPoint> keypoints = Arrays.asList(keypoint);
+        Mat img = getTestImg();
+        Mat descriptors = new Mat();
+
+        extractor.compute(img, keypoints, descriptors);
+
+        assertMatEqual(truth, descriptors, EPS);
+    }
+
+    public void testCreate() {
+        assertNotNull(extractor);
+    }
+
+    public void testDescriptorSize() {
+        assertEquals(128, extractor.descriptorSize());
+    }
+
+    public void testDescriptorType() {
+        assertEquals(CvType.CV_32F, extractor.descriptorType());
+    }
+
+    public void testEmpty() {
+        assertFalse(extractor.empty());
+    }
+
+    public void testRead() {
+        List<KeyPoint> keypoints = Arrays.asList(keypoint);
+        Mat img = getTestImg();
+        Mat descriptors = new Mat();
+
+        String filename = OpenCVTestRunner.getTempFileName("yml");
+        writeFile(filename, "%YAML:1.0\nmagnification: 3.\nisNormalize: 1\nrecalculateAngles: 1\nnOctaves: 6\nnOctaveLayers: 4\nfirstOctave: -1\nangleMode: 0\n");
+
+        extractor.read(filename);
+
+        extractor.compute(img, keypoints, descriptors);
+        assertMatNotEqual(truth, descriptors, EPS);
+    }
+
+    public void testWrite() {
+        String filename = OpenCVTestRunner.getTempFileName("xml");
+
+        extractor.write(filename);
+
+        String truth = "<?xml version=\"1.0\"?>\n<opencv_storage>\n<magnification>3.</magnification>\n<isNormalize>1</isNormalize>\n<recalculateAngles>1</recalculateAngles>\n<nOctaves>4</nOctaves>\n<nOctaveLayers>3</nOctaveLayers>\n<firstOctave>-1</firstOctave>\n<angleMode>0</angleMode>\n</opencv_storage>\n";
+        assertEquals(truth, readFile(filename));
+    }
+
+    public void testWriteYml() {
+        String filename = OpenCVTestRunner.getTempFileName("yml");
+
+        extractor.write(filename);
+
+        String truth = "%YAML:1.0\nmagnification: 3.\nisNormalize: 1\nrecalculateAngles: 1\nnOctaves: 4\nnOctaveLayers: 3\nfirstOctave: -1\nangleMode: 0\n";
+        assertEquals(truth, readFile(filename));
+    }
+
+}