Java API: vector_vector support for KeyPoint/DMatch/char

Testing: 1178/4/576

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

@@ -96,6 +96,28 @@ public class SURFFeatureDetectorTest extends OpenCVTestCase {
         assertListKeyPointEquals(Arrays.asList(truth), keypoints, EPS);
     }
 
+	public void testDetectListOfMatListOfListOfKeyPoint() {
+        String filename = OpenCVTestRunner.getTempFileName("yml");
+        writeFile(filename, "%YAML:1.0\nhessianThreshold: 8000.\noctaves: 3\noctaveLayers: 4\nupright: 0\n");
+        detector.read(filename);
+        
+        List<List<KeyPoint>> keypoints = new ArrayList<List<KeyPoint>>();
+        Mat cross = getTestImg();
+        List<Mat> crosses = new ArrayList<Mat>(3);
+        crosses.add(cross);
+        crosses.add(cross);
+        crosses.add(cross);
+
+        detector.detect(crosses, keypoints);
+        
+        assertEquals(3, keypoints.size());
+
+        for(List<KeyPoint> lkp : keypoints) {
+        	order(lkp);
+        	assertListKeyPointEquals(Arrays.asList(truth), lkp, EPS);
+        }
+	}
+
     public void testEmpty() {
         assertFalse(detector.empty());
     }

modules/java/gen_java.py

@@ -200,6 +200,10 @@ type_dict = {
     "vector_float"  : { "j_type" : "List<Float>", "jn_type" : "long", "jni_type" : "jlong", "jni_var" : "vector<float> %(n)s", "suffix" : "J" },
     "vector_double" : { "j_type" : "List<Double>", "jn_type" : "long", "jni_type" : "jlong", "jni_var" : "vector<double> %(n)s", "suffix" : "J" },
 
+    "vector_vector_KeyPoint":{ "j_type" : "List<List<KeyPoint>>", "jn_type" : "long", "jni_type" : "jlong", "jni_var" : "vector< vector<KeyPoint> > %(n)s" },
+    "vector_vector_DMatch" : { "j_type" : "List<List<DMatch>>",   "jn_type" : "long", "jni_type" : "jlong", "jni_var" : "vector< vector<DMatch> > %(n)s" },
+    "vector_vector_char"   : { "j_type" : "List<List<Byte>>",     "jn_type" : "long", "jni_type" : "jlong", "jni_var" : "vector< vector<char> > %(n)s" },
+
     "Mat"     : { "j_type" : "Mat", "jn_type" : "long", "jn_args" : (("__int64", ".nativeObj"),),
                   "jni_var" : "Mat& %(n)s = *((Mat*)%(n)s_nativeObj)",
                   "jni_type" : "jlong", #"jni_name" : "*%(n)s",
@@ -668,7 +672,7 @@ public class %(jc)s {
 
         # class props
         for p in decl[3]:
-            if "vector" not in p[0]:
+            if True: #"vector" not in p[0]:
                 classinfo.props.append( ClassPropInfo(p) )
             else:
                 print "Skipped property: [%s]" % name, p

modules/java/src/cpp/converters.cpp

@@ -263,3 +263,81 @@ void vector_DMatch_to_Mat(vector<DMatch>& v_dm, Mat& mat)
 		mat.at< Vec<double, 4> >(i, 0) = Vec<double, 4>(dm.queryIdx, dm.trainIdx, dm.imgIdx, dm.distance);
 	}
 }
+
+void Mat_to_vector_vector_KeyPoint(Mat& mat, vector< vector< KeyPoint > >& vv_kp)
+{
+	vector<Mat> vm;
+	vm.reserve( mat.rows );
+	Mat_to_vector_Mat(mat, vm);
+	for(size_t i=0; i<vm.size(); i++)
+	{
+		vector<KeyPoint> vkp;
+		Mat_to_vector_KeyPoint(vm[i], vkp);
+		vv_kp.push_back(vkp);
+	}
+}
+
+void vector_vector_KeyPoint_to_Mat(vector< vector< KeyPoint > >& vv_kp, Mat& mat)
+{
+	vector<Mat> vm;
+	vm.reserve( vv_kp.size() );
+	for(size_t i=0; i<vv_kp.size(); i++)
+	{
+		Mat m;
+		vector_KeyPoint_to_Mat(vv_kp[i], m);
+		vm.push_back(m);
+	}
+	vector_Mat_to_Mat(vm, mat);
+}
+
+void Mat_to_vector_vector_DMatch(Mat& mat, vector< vector< DMatch > >& vv_dm)
+{
+	vector<Mat> vm;
+	vm.reserve( mat.rows );
+	Mat_to_vector_Mat(mat, vm);
+	for(size_t i=0; i<vm.size(); i++)
+	{
+		vector<DMatch> vdm;
+		Mat_to_vector_DMatch(vm[i], vdm);
+		vv_dm.push_back(vdm);
+	}
+}
+
+void vector_vector_DMatch_to_Mat(vector< vector< DMatch > >& vv_dm, Mat& mat)
+{
+	vector<Mat> vm;
+	vm.reserve( vv_dm.size() );
+	for(size_t i=0; i<vv_dm.size(); i++)
+	{
+		Mat m;
+		vector_DMatch_to_Mat(vv_dm[i], m);
+		vm.push_back(m);
+	}
+	vector_Mat_to_Mat(vm, mat);
+}
+
+void Mat_to_vector_vector_char(Mat& mat, vector< vector< char > >& vv_ch)
+{
+	vector<Mat> vm;
+	vm.reserve( mat.rows );
+	Mat_to_vector_Mat(mat, vm);
+	for(size_t i=0; i<vm.size(); i++)
+	{
+		vector<char> vch;
+		Mat_to_vector_char(vm[i], vch);
+		vv_ch.push_back(vch);
+	}
+}
+
+void vector_vector_char_to_Mat(vector< vector< char > >& vv_ch, Mat& mat)
+{
+	vector<Mat> vm;
+	vm.reserve( vv_ch.size() );
+	for(size_t i=0; i<vv_ch.size(); i++)
+	{
+		Mat m;
+		vector_char_to_Mat(vv_ch[i], m);
+		vm.push_back(m);
+	}
+	vector_Mat_to_Mat(vm, mat);
+}

modules/java/src/cpp/converters.h

@@ -46,3 +46,12 @@ void vector_Mat_to_Mat(std::vector<cv::Mat>& v_mat, cv::Mat& mat);
 
 void Mat_to_vector_DMatch(cv::Mat& mat, std::vector<cv::DMatch>& v_dm);
 void vector_DMatch_to_Mat(std::vector<cv::DMatch>& v_dm, cv::Mat& mat);
+
+void Mat_to_vector_vector_KeyPoint(cv::Mat& mat, std::vector< std::vector< cv::KeyPoint > >& vv_kp);
+void vector_vector_KeyPoint_to_Mat(std::vector< std::vector< cv::KeyPoint > >& vv_kp, cv::Mat& mat);
+
+void Mat_to_vector_vector_DMatch(cv::Mat& mat, std::vector< std::vector< cv::DMatch > >& vv_dm);
+void vector_vector_DMatch_to_Mat(std::vector< std::vector< cv::DMatch > >& vv_dm, cv::Mat& mat);
+
+void Mat_to_vector_vector_char(cv::Mat& mat, std::vector< std::vector< char > >& vv_ch);
+void vector_vector_char_to_Mat(std::vector< std::vector< char > >& vv_ch, cv::Mat& mat);

modules/java/src/java/utils+Converters.java

@@ -1,5 +1,6 @@
 package org.opencv.utils;
 
+import java.util.ArrayList;
 import java.util.List;
 
 import org.opencv.core.Mat;
@@ -474,6 +475,36 @@ public class Converters {
         }
     }
 
+    // vector_vector_KeyPoint
+    public static Mat vector_vector_KeyPoint_to_Mat(List<List<KeyPoint>> kps) {
+        Mat res;
+        int lCount = (kps!=null) ? kps.size() : 0;
+        if(lCount>0){
+            List<Mat> mats = new ArrayList<Mat>(lCount);
+            for(List<KeyPoint> lkp: kps) mats.add( vector_KeyPoint_to_Mat(lkp) );
+            res = vector_Mat_to_Mat(mats);
+        } else {
+            res = new Mat();
+        }
+        return res;
+    }
+
+    public static void Mat_to_vector_vector_KeyPoint(Mat m, List<List<KeyPoint>> kps) {
+        if(kps == null)
+            throw new java.lang.IllegalArgumentException("Output List can't be null");
+
+        if(m == null)
+            throw new java.lang.IllegalArgumentException("Input Mat can't be null");
+
+        List<Mat> mats = new ArrayList<Mat>(m.rows());
+        Mat_to_vector_Mat(m, mats);
+        List<KeyPoint> lkp = new ArrayList<KeyPoint>();
+        for(Mat mi : mats) {
+            Mat_to_vector_KeyPoint(mi, lkp);
+            kps.add(lkp);
+        }
+    }
+
 
     public static Mat vector_double_to_Mat(List<Double> ds) {
         Mat res;
@@ -528,4 +559,65 @@ public class Converters {
         }
     }
 
+
+// vector_vector_DMatch
+public static Mat vector_vector_DMatch_to_Mat(List<List<DMatch>> lldm) {
+    Mat res;
+    int lCount = (lldm!=null) ? lldm.size() : 0;
+    if(lCount>0){
+        List<Mat> mats = new ArrayList<Mat>(lCount);
+        for(List<DMatch> ldm: lldm) mats.add( vector_DMatch_to_Mat(ldm) );
+        res = vector_Mat_to_Mat(mats);
+    } else {
+        res = new Mat();
+    }
+    return res;
+}
+
+public static void Mat_to_vector_vector_DMatch(Mat m, List<List<DMatch>> lldm) {
+    if(lldm == null)
+        throw new java.lang.IllegalArgumentException("Output List can't be null");
+
+    if(m == null)
+        throw new java.lang.IllegalArgumentException("Input Mat can't be null");
+
+    List<Mat> mats = new ArrayList<Mat>(m.rows());
+    Mat_to_vector_Mat(m, mats);
+    List<DMatch> ldm = new ArrayList<DMatch>();
+    for(Mat mi : mats) {
+        Mat_to_vector_DMatch(mi, ldm);
+        lldm.add(ldm);
+    }
+}
+
+//vector_vector_char
+public static Mat vector_vector_char_to_Mat(List<List<Byte>> llb) {
+ Mat res;
+ int lCount = (llb!=null) ? llb.size() : 0;
+ if(lCount>0){
+     List<Mat> mats = new ArrayList<Mat>(lCount);
+     for(List<Byte> lb: llb) mats.add( vector_char_to_Mat(lb) );
+     res = vector_Mat_to_Mat(mats);
+ } else {
+     res = new Mat();
+ }
+ return res;
+}
+
+public static void Mat_to_vector_vector_char(Mat m, List<List<Byte>> llb) {
+ if(llb == null)
+     throw new java.lang.IllegalArgumentException("Output List can't be null");
+
+ if(m == null)
+     throw new java.lang.IllegalArgumentException("Input Mat can't be null");
+
+ List<Mat> mats = new ArrayList<Mat>(m.rows());
+ Mat_to_vector_Mat(m, mats);
+ List<Byte> lb = new ArrayList<Byte>();
+ for(Mat mi : mats) {
+     Mat_to_vector_char(mi, lb);
+     llb.add(lb);
+ }
+}
+
 }