Added vector_Point2f_to_Mat converter

modules/java/android_test/src/org/opencv/test/OpenCVTestCase.java

@@ -166,7 +166,6 @@ public class OpenCVTestCase extends TestCase {
         }
         Mat diff = new Mat();
         Core.absdiff(expected, actual, diff);
-        OpenCVTestRunner.Log(diff + "     \n    " + diff.dump());
         if(isEqualityMeasured)
             assertTrue("Max difference between expected and actiual values is bigger than " + eps,
                     Core.checkRange(diff, true, new Point(), 0.0, eps));

modules/java/android_test/src/org/opencv/test/calib3d/calib3dTest.java

@@ -1,5 +1,8 @@
 package org.opencv.test.calib3d;
 
+import android.util.Log;
+
+import org.opencv.Converters;
 import org.opencv.core.CvType;
 import org.opencv.core.Mat;
 import org.opencv.core.Point;
@@ -8,6 +11,10 @@ import org.opencv.core.Size;
 import org.opencv.calib3d.Calib3d;
 import org.opencv.core.Core;
 import org.opencv.test.OpenCVTestCase;
+import org.opencv.test.OpenCVTestRunner;
+
+import java.util.ArrayList;
+import java.util.List;
 
 public class calib3dTest extends OpenCVTestCase {
 
@@ -265,7 +272,23 @@ public class calib3dTest extends OpenCVTestCase {
     }
 
     public void testFindHomographyMatMat() {
-        fail("Not yet implemented");
+        
+        List<Point> originalPoints = new ArrayList<Point>();
+        List<Point> transformedPoints = new ArrayList<Point>();
+        
+        for (int i = 0; i < 20; i++){
+            double x = Math.random() * 100 - 50;
+            double y = Math.random() * 100 - 50;
+            originalPoints.add(new Point(x,y));
+            transformedPoints.add(new Point(y,x));
+        }
+        
+        Mat hmg = Calib3d.findHomography(Converters.vector_Point2f_to_Mat(originalPoints), Converters.vector_Point2f_to_Mat(transformedPoints));
+        
+        truth = new Mat(3,3, CvType.CV_64F);
+        truth.put(0, 0, 0,1,0,1,0,0,0,0,1);
+        
+        assertMatEqual(truth, hmg, EPS);
     }
 
     public void testFindHomographyMatMatInt() {

modules/java/android_test/src/org/opencv/test/core/coreTest.java

@@ -1086,8 +1086,39 @@ public class coreTest extends OpenCVTestCase {
     }
 
     public void testPerspectiveTransform() {
-        // nice example
+        Mat src = new Mat(matSize, matSize, CvType.CV_32FC2);
-        fail("Not yet implemented");
+        
+        Mat low = new Mat(1, 1, CvType.CV_32F, new Scalar(0));
+        Mat high = new Mat(1, 1, CvType.CV_32F, new Scalar(256));
+        Core.randu(src, low, high);
+        
+        //FIXME: use Mat.diag
+        Mat transformMatrix = new Mat(3, 3, CvType.CV_32F);
+        transformMatrix.put(0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1);
+        
+        Core.perspectiveTransform(src, dst, transformMatrix);
+        
+        assertMatEqual(src, dst, EPS);
+    }
+    
+    public void testPerspectiveTransform3D() {
+        Mat src = new Mat(matSize, matSize, CvType.CV_32FC3);
+        
+        Mat low = new Mat(1, 1, CvType.CV_32F, new Scalar(0));
+        Mat high = new Mat(1, 1, CvType.CV_32F, new Scalar(256));
+        Core.randu(src, low, high);
+        
+        //FIXME: use Mat.diag
+        Mat transformMatrix = new Mat(4, 4, CvType.CV_32F);
+        transformMatrix.put(0, 0, 
+                1, 0, 0, 0,
+                0, 1, 0, 0,
+                0, 0, 1, 0,
+                0, 0, 0, 1);
+        
+        Core.perspectiveTransform(src, dst, transformMatrix);
+        
+        assertMatEqual(src, dst, EPS);
     }
 
     public void testPhaseMatMatMat() {

modules/java/src/java/Converters.java

@@ -28,6 +28,24 @@ public class Converters {
         return res;
     }
 
+    public static Mat vector_Point2f_to_Mat(List<Point> pts) {
+        Mat res;
+        int count = (pts!=null) ? pts.size() : 0;
+        if(count>0){
+            res = new Mat(1, count, CvType.CV_32FC2);
+            float[] buff = new float[count*2];
+            for(int i=0; i<count; i++) {
+                Point p = pts.get(i);
+                buff[i*2]   = (float)p.x;
+                buff[i*2+1] = (float)p.y;
+            }
+            res.put(0, 0, buff);
+        } else {
+            res = new Mat();
+        }
+        return res;
+    }
+
     public static void Mat_to_vector_Point(Mat m, List<Point> pts) {
         if(pts == null)
             throw new java.lang.IllegalArgumentException();