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Java API: added tests for FAST feature detector

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This commit is contained in:
Andrey Kamaev 2011-08-02 14:32:43 +00:00
parent bba4f9e5d6
commit 99b8e2db14
6 changed files with 230 additions and 16 deletions
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2
CMakeLists.txt
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@ -829,7 +829,7 @@ if (BUILD_JAVA_SUPPORT)
endif()
if(CAN_BUILD_ANDROID_PROJECTS)
option(BUILD_ANDROID_EXAMPLES "Build examples for Android platform" TRUE)
SET(BUILD_ANDROID_EXAMPLES TRUE CACHE BOOL "Build examples for Android platform")
endif()
#YV

59
modules/java/android_test/src/org/opencv/test/OpenCVTestCase.java
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@ -1,18 +1,25 @@
package org.opencv.test;
import java.util.List;
import junit.framework.TestCase;
import org.opencv.core.Core;
import org.opencv.core.CvType;
import org.opencv.core.Mat;
import org.opencv.core.Point;
import org.opencv.core.Rect;
import org.opencv.core.Scalar;
import org.opencv.core.Core;
import org.opencv.features2d.KeyPoint;
import org.opencv.highgui.Highgui;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;
import java.nio.charset.Charset;
import java.util.List;
import junit.framework.TestCase;
public class OpenCVTestCase extends TestCase {
protected static int matSize = 10;
@ -296,4 +303,46 @@ public class OpenCVTestCase extends TestCase {
OpenCVTestRunner.Log("================================================");
OpenCVTestRunner.Log("=============== " + label);
}
protected static String readFile(String path) {
FileInputStream stream = null;
try {
stream = new FileInputStream(new File(path));
FileChannel fc = stream.getChannel();
MappedByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0,
fc.size());
return Charset.defaultCharset().decode(bb).toString();
} catch (IOException e) {
OpenCVTestRunner.Log("Failed to read file \"" + path
+ "\". Exception is thrown: " + e);
return null;
} finally {
if (stream != null)
try {
stream.close();
} catch (IOException e) {
OpenCVTestRunner.Log("Exception is thrown: " + e);
}
}
}
protected static void writeFile(String path, String content) {
FileOutputStream stream = null;
try {
stream = new FileOutputStream(new File(path));
FileChannel fc = stream.getChannel();
fc.write(Charset.defaultCharset().encode(content));
} catch (IOException e) {
OpenCVTestRunner.Log("Failed to write file \"" + path
+ "\". Exception is thrown: " + e);
} finally {
if (stream != null)
try {
stream.close();
} catch (IOException e) {
OpenCVTestRunner.Log("Exception is thrown: " + e);
}
}
}
}

19
modules/java/android_test/src/org/opencv/test/OpenCVTestRunner.java
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@ -7,6 +7,9 @@ import android.util.Log;
import org.opencv.Android;
import java.io.File;
import java.io.IOException;
/**
* This only class is Android specific. The original idea about test order
* randomization is from marek.defecinski blog.
@ -24,6 +27,22 @@ public class OpenCVTestRunner extends InstrumentationTestRunner {
private AndroidTestRunner androidTestRunner;
private static String TAG = "opencv_test_java";
public static String getTempFileName(String extension)
{
File cache = context.getCacheDir();
if (!extension.startsWith("."))
extension = "." + extension;
try {
File tmp = File.createTempFile("OpenCV", extension, cache);
String path = tmp.getAbsolutePath();
tmp.delete();
return path;
} catch (IOException e) {
Log("Failed to get temp file name. Exception is thrown: " + e);
}
return null;
}
static public void Log(String message) {
Log.e(TAG, message);
}

145
modules/java/android_test/src/org/opencv/test/features2d/FASTFeatureDetectorTest.java Normal file
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@ -0,0 +1,145 @@
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.FeatureDetector;
import org.opencv.features2d.KeyPoint;
import org.opencv.test.OpenCVTestCase;
import org.opencv.test.OpenCVTestRunner;
import java.util.ArrayList;
import java.util.List;
public class FASTFeatureDetectorTest extends OpenCVTestCase {
FeatureDetector detector;
KeyPoint[] truth;
@Override
protected void setUp() throws Exception {
detector = FeatureDetector.create(FeatureDetector.FAST);
truth = new KeyPoint[] { new KeyPoint(32, 27, 6, -1, 254, 0, -1),
new KeyPoint(27, 32, 6, -1, 254, 0, -1),
new KeyPoint(73, 68, 6, -1, 254, 0, -1),
new KeyPoint(68, 73, 6, -1, 254, 0, -1) };
super.setUp();
}
private Mat getTestImg() {
Mat img = new Mat(100, 100, CvType.CV_8U, new Scalar(255));
Core.line(img, new Point(30, 30), new Point(70, 70), new Scalar(0), 8);
return img;
}
private Mat getMaskImg() {
Mat mask = new Mat(100, 100, CvType.CV_8U, new Scalar(255));
Mat right = mask.submat(0, 100, 50, 100);
right.setTo(new Scalar(0));
return mask;
}
public void testCreate() {
assertNotNull(detector);
}
public void testDetectMatListOfKeyPointMat() {
Mat img = getTestImg();
Mat mask = getMaskImg();
List<KeyPoint> keypoints = new ArrayList<KeyPoint>();
detector.detect(img, keypoints, mask);
KeyPoint[] _truth = new KeyPoint[] { truth[0], truth[1] };
assertEquals(_truth.length, keypoints.size());
for (int i = 0; i < _truth.length; i++)
assertKeyPointEqual(_truth[i], keypoints.get(i), EPS);
}
public void testDetectMatListOfKeyPoint() {
Mat img = getTestImg();
List<KeyPoint> keypoints = new ArrayList<KeyPoint>();
detector.detect(img, keypoints);
assertEquals(truth.length, keypoints.size());
for (int i = 0; i < truth.length; i++)
assertKeyPointEqual(truth[i], keypoints.get(i), EPS);
// OpenCVTestRunner.Log("points found: " + keypoints.size());
// for (KeyPoint kp : keypoints)
// OpenCVTestRunner.Log(kp.toString());
}
public void testEmpty() {
assertFalse(detector.empty());
}
public void testRead() {
String filename = OpenCVTestRunner.getTempFileName("yml");
writeFile(filename, "%YAML:1.0\nthreshold: 130\nnonmaxSuppression: 1\n");
detector.read(filename);
List<KeyPoint> keypoints1 = new ArrayList<KeyPoint>();
detector.detect(grayChess, keypoints1);
writeFile(filename, "%YAML:1.0\nthreshold: 150\nnonmaxSuppression: 1\n");
detector.read(filename);
List<KeyPoint> keypoints2 = new ArrayList<KeyPoint>();
detector.detect(grayChess, keypoints2);
assertTrue(keypoints2.size() <= keypoints1.size());
}
public void testReadYml() {
String filename = OpenCVTestRunner.getTempFileName("yml");
writeFile(
filename,
"<?xml version=\"1.0\"?>\n<opencv_storage>\n<threshold>130</threshold>\n<nonmaxSuppression>1</nonmaxSuppression>\n</opencv_storage>\n");
detector.read(filename);
List<KeyPoint> keypoints1 = new ArrayList<KeyPoint>();
detector.detect(grayChess, keypoints1);
writeFile(
filename,
"<?xml version=\"1.0\"?>\n<opencv_storage>\n<threshold>150</threshold>\n<nonmaxSuppression>1</nonmaxSuppression>\n</opencv_storage>\n");
detector.read(filename);
List<KeyPoint> keypoints2 = new ArrayList<KeyPoint>();
detector.detect(grayChess, keypoints2);
assertTrue(keypoints2.size() <= keypoints1.size());
}
public void testWrite() {
String filename = OpenCVTestRunner.getTempFileName("xml");
detector.write(filename);
String truth = "<?xml version=\"1.0\"?>\n<opencv_storage>\n<threshold>10</threshold>\n<nonmaxSuppression>1</nonmaxSuppression>\n</opencv_storage>\n";
assertEquals(truth, readFile(filename));
}
public void testWriteYml() {
String filename = OpenCVTestRunner.getTempFileName("yml");
detector.write(filename);
String truth = "%YAML:1.0\nthreshold: 10\nnonmaxSuppression: 1\n";
assertEquals(truth, readFile(filename));
}
}

1
modules/java/gen_java.py
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@ -13,6 +13,7 @@ class_ignore_list = (
"VideoWriter", "VideoCapture",
#features2d
"KeyPoint",
"MSER",
)
const_ignore_list = (

18
modules/java/src/cpp/features2d_manual.hpp
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@ -10,8 +10,8 @@ class CV_EXPORTS_AS(FeatureDetector) javaFeatureDetector : public FeatureDetecto
{
public:
#if 0
CV_WRAP void detect( const Mat& image, vector<KeyPoint>& keypoints, const Mat& mask=Mat() ) const;
CV_WRAP void detect( const vector<Mat>& images, vector<vector<KeyPoint> >& keypoints, const vector<Mat>& masks=vector<Mat>() ) const;
CV_WRAP void detect( const Mat& image, CV_OUT vector<KeyPoint>& keypoints, const Mat& mask=Mat() ) const;
CV_WRAP void detect( const vector<Mat>& images, CV_OUT vector<vector<KeyPoint> >& keypoints, const vector<Mat>& masks=vector<Mat>() ) const;
CV_WRAP virtual bool empty() const;
#endif
@ -145,18 +145,18 @@ public:
CV_WRAP virtual bool empty() const;
CV_WRAP virtual void train();
CV_WRAP void match( const Mat& queryDescriptors, const Mat& trainDescriptors,
vector<DMatch>& matches, const Mat& mask=Mat() ) const;
CV_OUT vector<DMatch>& matches, const Mat& mask=Mat() ) const;
CV_WRAP void knnMatch( const Mat& queryDescriptors, const Mat& trainDescriptors,
vector<vector<DMatch> >& matches, int k,
CV_OUT vector<vector<DMatch> >& matches, int k,
const Mat& mask=Mat(), bool compactResult=false ) const;
CV_WRAP void radiusMatch( const Mat& queryDescriptors, const Mat& trainDescriptors,
vector<vector<DMatch> >& matches, float maxDistance,
CV_OUT vector<vector<DMatch> >& matches, float maxDistance,
const Mat& mask=Mat(), bool compactResult=false ) const;
CV_WRAP void match( const Mat& queryDescriptors, vector<DMatch>& matches,
CV_WRAP void match( const Mat& queryDescriptors, CV_OUT vector<DMatch>& matches,
const vector<Mat>& masks=vector<Mat>() );
CV_WRAP void knnMatch( const Mat& queryDescriptors, vector<vector<DMatch> >& matches, int k,
CV_WRAP void knnMatch( const Mat& queryDescriptors, CV_OUT vector<vector<DMatch> >& matches, int k,
const vector<Mat>& masks=vector<Mat>(), bool compactResult=false );
CV_WRAP void radiusMatch( const Mat& queryDescriptors, vector<vector<DMatch> >& matches, float maxDistance,
CV_WRAP void radiusMatch( const Mat& queryDescriptors, CV_OUT vector<vector<DMatch> >& matches, float maxDistance,
const vector<Mat>& masks=vector<Mat>(), bool compactResult=false );
#endif
@ -229,7 +229,7 @@ class CV_EXPORTS_AS(DescriptorExtractor) javaDescriptorExtractor : public Descri
public:
#if 0
CV_WRAP void compute( const Mat& image, vector<KeyPoint>& keypoints, Mat& descriptors ) const;
CV_WRAP void compute( const vector<Mat>& images, vector<vector<KeyPoint> >& keypoints, vector<Mat>& descriptors ) const;
CV_WRAP void compute( const vector<Mat>& images, vector<vector<KeyPoint> >& keypoints, CV_OUT vector<Mat>& descriptors ) const;
CV_WRAP virtual int descriptorSize() const = 0;
CV_WRAP virtual int descriptorType() const = 0;