Merge pull request #13956 from komakai:java-mat-class-improvements

* Expose more C++ functionality in the Java wrapper of the Mat class
In particular expose methods for handling Mat with more than 2 dimensions
* add constructors taking an array of dimension sizes
* add constructor taking an existing Mat and an array of Ranges
* add override of the create method taking an array of dimension sizes
* add overrides of the ones and zeros methods taking an array of dimension sizes
* add override of the submat method taking an array of ranges
* add overrides of put and get taking arrays of indices
* add wrapper for copySize method
* fix crash in the JNI wrapper of the reshape(int cn, int[] newshape) method
* add test for each method added to Mat.java

* Fix broken test

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

@@ -99,6 +99,8 @@ public class OpenCVTestCase extends TestCase {
     protected Mat rgbLena;
     protected Mat grayChess;
 
+    protected Mat gray255_32f_3d;
+
     protected Mat v1;
     protected Mat v2;
 
@@ -149,6 +151,8 @@ public class OpenCVTestCase extends TestCase {
         rgbLena = Imgcodecs.imread(OpenCVTestRunner.LENA_PATH);
         grayChess = Imgcodecs.imread(OpenCVTestRunner.CHESS_PATH, 0);
 
+        gray255_32f_3d = new Mat(new int[]{matSize, matSize, matSize}, CvType.CV_32F, new Scalar(255.0));
+
         v1 = new Mat(1, 3, CvType.CV_32F);
         v1.put(0, 0, 1.0, 3.0, 2.0);
         v2 = new Mat(1, 3, CvType.CV_32F);
@@ -184,6 +188,7 @@ public class OpenCVTestCase extends TestCase {
         rgba128.release();
         rgbLena.release();
         grayChess.release();
+        gray255_32f_3d.release();
         v1.release();
         v2.release();
 
@@ -442,8 +447,24 @@ public class OpenCVTestCase extends TestCase {
         assertEquals(msg, expected.z, actual.z, eps);
     }
 
+    static private boolean dimensionsEqual(Mat expected, Mat actual) {
+        if (expected.dims() != actual.dims()) {
+            return false;
+        }
+        if (expected.dims() > 2) {
+            for (int i = 0; i < expected.dims(); i++) {
+                if (expected.size(i) != actual.size(i)) {
+                    return false;
+                }
+            }
+            return true;
+        } else {
+            return expected.cols() == actual.cols() && expected.rows() == actual.rows();
+        }
+    }
+
     static private void compareMats(Mat expected, Mat actual, boolean isEqualityMeasured) {
-        if (expected.type() != actual.type() || expected.cols() != actual.cols() || expected.rows() != actual.rows()) {
+        if (expected.type() != actual.type() || !dimensionsEqual(expected, actual)) {
             throw new UnsupportedOperationException("Can not compare " + expected + " and " + actual);
         }
 
@@ -471,7 +492,7 @@ public class OpenCVTestCase extends TestCase {
     }
 
     static private void compareMats(Mat expected, Mat actual, double eps, boolean isEqualityMeasured) {
-        if (expected.type() != actual.type() || expected.cols() != actual.cols() || expected.rows() != actual.rows()) {
+        if (expected.type() != actual.type() || !dimensionsEqual(expected, actual)) {
             throw new UnsupportedOperationException("Can not compare " + expected + " and " + actual);
         }