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package org.opencv.test.features2d;
import org.opencv.core.CvType;
import org.opencv.core.Mat;
import org.opencv.core.MatOfKeyPoint;
import org.opencv.core.Point;
import org.opencv.core.Scalar;
import org.opencv.core.KeyPoint;
import org.opencv.test.OpenCVTestCase;
import org.opencv.test.OpenCVTestRunner;
import org.opencv.imgproc.Imgproc;
import org.opencv.features2d.Feature2D;
public class BRIEFDescriptorExtractorTest extends OpenCVTestCase {
Feature2D extractor;
int matSize;
private Mat getTestImg() {
Mat cross = new Mat(matSize, matSize, CvType.CV_8U, new Scalar(255));
Imgproc.line(cross, new Point(20, matSize / 2), new Point(matSize - 21, matSize / 2), new Scalar(100), 2);
Imgproc.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 {
super.setUp();
extractor = createClassInstance(XFEATURES2D+"BriefDescriptorExtractor", DEFAULT_FACTORY, null, null);
matSize = 100;
}
public void testComputeListOfMatListOfListOfKeyPointListOfMat() {
fail("Not yet implemented");
}
public void testComputeMatListOfKeyPointMat() {
KeyPoint point = new KeyPoint(55.775577545166016f, 44.224422454833984f, 16, 9.754629f, 8617.863f, 1, -1);
MatOfKeyPoint keypoints = new MatOfKeyPoint(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, 96, 0, 76, 24, 47, 182, 68, 137,
149, 195, 67, 16, 187, 224, 74, 8,
82, 169, 87, 70, 44, 4, 192, 56,
13, 128, 44, 106, 146, 72, 194, 245);
}
};
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());
fail("Not yet implemented"); // BRIEF does not override empty() method
}
public void testRead() {
String filename = OpenCVTestRunner.getTempFileName("yml");
writeFile(filename, "%YAML:1.0\n---\ndescriptorSize: 64\n");
extractor.read(filename);
assertEquals(64, extractor.descriptorSize());
}
public void testWrite() {
String filename = OpenCVTestRunner.getTempFileName("xml");
extractor.write(filename);
String truth = "<?xml version=\"1.0\"?>\n<opencv_storage>\n<descriptorSize>32</descriptorSize>\n</opencv_storage>\n";
assertEquals(truth, readFile(filename));
}
public void testWriteYml() {
String filename = OpenCVTestRunner.getTempFileName("yml");
extractor.write(filename);
String truth = "%YAML:1.0\n---\ndescriptorSize: 32\n";
assertEquals(truth, readFile(filename));
}
}
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