feat: 切换后端至PaddleOCR-NCNN，切换工程为CMake

1.项目后端整体迁移至PaddleOCR-NCNN算法，已通过基本的兼容性测试
2.工程改为使用CMake组织，后续为了更好地兼容第三方库，不再提供QMake工程
3.重整权利声明文件，重整代码工程，确保最小化侵权风险

Log: 切换后端至PaddleOCR-NCNN，切换工程为CMake
Change-Id: I4d5d2c5d37505a4a24b389b1a4c5d12f17bfa38c

3rdparty/opencv-4.5.4/modules/java/test/common_test/res/layout/main.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+<TextView
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text="@string/hello"
+    />
+</LinearLayout>

3rdparty/opencv-4.5.4/modules/java/test/common_test/res/values/strings.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="hello">Hello World!</string>
+    <string name="app_name">OpenCV_JavaAPI_Tests</string>
+</resources>

3rdparty/opencv-4.5.4/modules/java/test/common_test/src/org/opencv/test/utils/ConvertersTest.java

@@ -0,0 +1,529 @@
+package org.opencv.test.utils;
+
+import org.opencv.core.CvType;
+import org.opencv.core.Mat;
+import org.opencv.core.Point;
+import org.opencv.core.Point3;
+import org.opencv.core.Size;
+import org.opencv.core.Rect;
+import org.opencv.core.RotatedRect;
+import org.opencv.core.DMatch;
+import org.opencv.core.KeyPoint;
+import org.opencv.test.OpenCVTestCase;
+import org.opencv.utils.Converters;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ConvertersTest extends OpenCVTestCase {
+
+    public void testMat_to_vector_char() {
+        Mat src = new Mat(3, 1, CvType.CV_8SC1);
+        src.put(0, 0, 2, 4, 3);
+        List<Byte> bs = new ArrayList<Byte>();
+
+        Converters.Mat_to_vector_char(src, bs);
+
+        List<Byte> truth = new ArrayList<Byte>();
+        byte value1 = 2;
+        byte value2 = 4;
+        byte value3 = 3;
+        truth.add(Byte.valueOf(value1));
+        truth.add(Byte.valueOf(value2));
+        truth.add(Byte.valueOf(value3));
+        assertEquals(truth, bs);
+    }
+
+    public void testMat_to_vector_DMatch() {
+        Mat src = new Mat(4, 1, CvType.CV_64FC4);
+        src.put(0, 0, 1, 4, 4, 10, 2, 3, 5, 6, 3, 1, 8, 12, 4, 9, 5, 15);
+        List<DMatch> matches = new ArrayList<DMatch>();
+
+        Converters.Mat_to_vector_DMatch(src, matches);
+
+        List<DMatch> truth = new ArrayList<DMatch>();
+        truth.add(new DMatch(1, 4, 4, 10));
+        truth.add(new DMatch(2, 3, 5, 6));
+        truth.add(new DMatch(3, 1, 8, 12));
+        truth.add(new DMatch(4, 9, 5, 15));
+        //assertListDMatchEquals(truth, matches, EPS);
+        fail("Not yet implemented");
+    }
+
+    public void testMat_to_vector_float() {
+        Mat src = new Mat(4, 1, CvType.CV_32FC1);
+        src.put(0, 0, 2, 4, 3, 9);
+        List<Float> fs = new ArrayList<Float>();
+
+        Converters.Mat_to_vector_float(src, fs);
+
+        List<Float> truth = new ArrayList<Float>();
+        truth.add(2.0f);
+        truth.add(4.0f);
+        truth.add(3.0f);
+        truth.add(9.0f);
+        assertListEquals(truth, fs, EPS);
+    }
+
+    public void testMat_to_vector_int() {
+        Mat src = new Mat(4, 1, CvType.CV_32SC1);
+        src.put(0, 0, 2, 4, 3, 9);
+        List<Integer> fs = new ArrayList<Integer>();
+
+        Converters.Mat_to_vector_int(src, fs);
+        List<Integer> truth = new ArrayList<Integer>();
+        truth.add(2);
+        truth.add(4);
+        truth.add(3);
+        truth.add(9);
+        assertListEquals(truth, fs);
+    }
+
+    public void testMat_to_vector_KeyPoint() {
+        Mat src = new Mat(1, 1, CvType.CV_64FC(7));
+        src.put(0, 0, 2, 4, 3, 9, 10, 12, 7);
+        List<KeyPoint> kps = new ArrayList<KeyPoint>();
+
+        Converters.Mat_to_vector_KeyPoint(src, kps);
+
+        List<KeyPoint> truth = new ArrayList<KeyPoint>();
+        truth.add(new KeyPoint(2, 4, 3, 9, 10, 12, 7));
+        assertListKeyPointEquals(truth, kps, EPS);
+    }
+
+    public void testMat_to_vector_Mat() {
+        // Mat src = new Mat(4, 1, CvType.CV_32SC2);
+        // src.put(0, 0, 2, 2, 3, 3, 4, 4, 5, 5);
+        //
+        // List<Mat> mats = new ArrayList<Mat>();
+        // Converters.Mat_to_vector_Mat(src, mats);
+        //
+        // List<Mat> truth = new ArrayList<Mat>();
+        // truth.add(new Mat(2, 1, CvType.CV_32SC1, Scalar.all(2.0)));
+        // truth.add(new Mat(2, 1, CvType.CV_32SC1, Scalar.all(3.0)));
+        // truth.add(new Mat(2, 1, CvType.CV_32SC1, Scalar.all(4.0)));
+        // truth.add(new Mat(2, 1, CvType.CV_32SC1, Scalar.all(5.0)));
+        // assertListEqualMat(truth, mats, EPS);
+        fail("Not yet implemented");
+    }
+
+    public void testMat_to_vector_Point() {
+        Mat src = new Mat(4, 1, CvType.CV_32SC2);
+        src.put(0, 0, 2, 4, 3, 9, 10, 4, 35, 54);
+        List<Point> points = new ArrayList<Point>();
+
+        Converters.Mat_to_vector_Point(src, points);
+
+        List<Point> truth = new ArrayList<Point>();
+        truth.add(new Point(2, 4));
+        truth.add(new Point(3, 9));
+        truth.add(new Point(10, 4));
+        truth.add(new Point(35, 54));
+        assertListPointEquals(truth, points, EPS);
+    }
+
+    public void testMat_to_vector_Point2d() {
+        Mat src = new Mat(4, 1, CvType.CV_64FC2);
+        src.put(0, 0, 12.0, 4.0, 3.0, 29.0, 10.0, 24.0, 35.0, 54.0);
+        List<Point> points = new ArrayList<Point>();
+
+        Converters.Mat_to_vector_Point2d(src, points);
+
+        List<Point> truth = new ArrayList<Point>();
+        truth.add(new Point(12.0, 4.0));
+        truth.add(new Point(3.0, 29.0));
+        truth.add(new Point(10.0, 24.0));
+        truth.add(new Point(35.0, 54.0));
+        assertListPointEquals(truth, points, EPS);
+    }
+
+    public void testMat_to_vector_Point2f() {
+        Mat src = new Mat(4, 1, CvType.CV_32FC2);
+        src.put(0, 0, 2, 14, 31, 19, 10, 44, 5, 41);
+        List<Point> points = new ArrayList<Point>();
+
+        Converters.Mat_to_vector_Point(src, points);
+
+        List<Point> truth = new ArrayList<Point>();
+        truth.add(new Point(2, 14));
+        truth.add(new Point(31, 19));
+        truth.add(new Point(10, 44));
+        truth.add(new Point(5, 41));
+        assertListPointEquals(truth, points, EPS);
+    }
+
+    public void testMat_to_vector_Point3() {
+        Mat src = new Mat(4, 1, CvType.CV_32SC3);
+        src.put(0, 0, 2, 14, 12, 31, 19, 22, 10, 44, 45, 5, 41, 31);
+        List<Point3> points = new ArrayList<Point3>();
+
+        Converters.Mat_to_vector_Point3(src, points);
+
+        List<Point3> truth = new ArrayList<Point3>();
+        truth.add(new Point3(2, 14, 12));
+        truth.add(new Point3(31, 19, 22));
+        truth.add(new Point3(10, 44, 45));
+        truth.add(new Point3(5, 41, 31));
+        assertListPoint3Equals(truth, points, EPS);
+    }
+
+    public void testMat_to_vector_Point3d() {
+        Mat src = new Mat(4, 1, CvType.CV_64FC3);
+        src.put(0, 0, 2.0, 4.0, 3.0, 5.0, 9.0, 12.0, 10.0, 14.0, 15.0, 5.0, 11.0, 31.0);
+        List<Point3> points = new ArrayList<Point3>();
+
+        Converters.Mat_to_vector_Point3(src, points);
+
+        List<Point3> truth = new ArrayList<Point3>();
+        truth.add(new Point3(2.0, 4.0, 3.0));
+        truth.add(new Point3(5.0, 9.0, 12.0));
+        truth.add(new Point3(10.0, 14.0, 15.0));
+        truth.add(new Point3(5.0, 11.0, 31.0));
+        assertListPoint3Equals(truth, points, EPS);
+    }
+
+    public void testMat_to_vector_Point3f() {
+        Mat src = new Mat(4, 1, CvType.CV_32FC3);
+        src.put(0, 0, 2.0, 4.0, 3.0, 5.0, 9.0, 12.0, 10.0, 14.0, 15.0, 5.0, 11.0, 31.0);
+        List<Point3> points = new ArrayList<Point3>();
+
+        Converters.Mat_to_vector_Point3(src, points);
+
+        List<Point3> truth = new ArrayList<Point3>();
+        truth.add(new Point3(2.0, 4.0, 3.0));
+        truth.add(new Point3(5.0, 9.0, 12.0));
+        truth.add(new Point3(10.0, 14.0, 15.0));
+        truth.add(new Point3(5.0, 11.0, 31.0));
+        assertListPoint3Equals(truth, points, EPS);
+    }
+
+    public void testMat_to_vector_Point3i() {
+        Mat src = new Mat(4, 1, CvType.CV_32SC3);
+        src.put(0, 0, 2, 14, 12, 31, 19, 22, 10, 44, 45, 5, 41, 31);
+        List<Point3> points = new ArrayList<Point3>();
+
+        Converters.Mat_to_vector_Point3(src, points);
+
+        List<Point3> truth = new ArrayList<Point3>();
+        truth.add(new Point3(2, 14, 12));
+        truth.add(new Point3(31, 19, 22));
+        truth.add(new Point3(10, 44, 45));
+        truth.add(new Point3(5, 41, 31));
+        assertListPoint3Equals(truth, points, EPS);
+    }
+
+    public void testMat_to_vector_Rect() {
+        Mat src = new Mat(2, 1, CvType.CV_32SC4);
+        src.put(0, 0, 2, 2, 5, 2, 0, 0, 6, 4);
+        List<Rect> rectangles = new ArrayList<Rect>();
+
+        Converters.Mat_to_vector_Rect(src, rectangles);
+        List<Rect> truth = new ArrayList<Rect>();
+        truth.add(new Rect(2, 2, 5, 2));
+        truth.add(new Rect(0, 0, 6, 4));
+        assertListRectEquals(truth, rectangles);
+    }
+
+    public void testMat_to_vector_RotatedRect() {
+        Mat src = new Mat(2, 1, CvType.CV_32FC(5));
+        src.put(0, 0, 2, 2, 5, 2, 7,
+                      0, 6, 4, 1, 3);
+        List<RotatedRect> rectangles = new ArrayList<RotatedRect>();
+
+        Converters.Mat_to_vector_RotatedRect(src, rectangles);
+        List<RotatedRect> truth = new ArrayList<RotatedRect>();
+        truth.add(new RotatedRect(new Point(2, 2), new Size(5, 2), 7));
+        truth.add(new RotatedRect(new Point(0, 6), new Size(4, 1), 3));
+        assertListRotatedRectEquals(truth, rectangles);
+    }
+
+    public void testMat_to_vector_uchar() {
+        Mat src = new Mat(3, 1, CvType.CV_8UC1);
+        src.put(0, 0, 2, 4, 3);
+        List<Byte> bs = new ArrayList<Byte>();
+
+        Converters.Mat_to_vector_uchar(src, bs);
+
+        List<Byte> truth = new ArrayList<Byte>();
+        byte value1 = 2;
+        byte value2 = 4;
+        byte value3 = 3;
+        truth.add(Byte.valueOf(value1));
+        truth.add(Byte.valueOf(value2));
+        truth.add(Byte.valueOf(value3));
+        assertEquals(truth, bs);
+    }
+
+    public void testMat_to_vector_vector_char() {
+        fail("Not yet implemented");
+    }
+
+    public void testMat_to_vector_vector_DMatch() {
+        fail("Not yet implemented");
+    }
+
+    public void testMat_to_vector_vector_KeyPoint() {
+        fail("Not yet implemented");
+    }
+
+    public void testMat_to_vector_vector_Point2f() {
+        fail("Not yet implemented");
+    }
+
+    public void testVector_char_to_Mat() {
+        List<Byte> bytes = new ArrayList<Byte>();
+        byte value1 = 1;
+        byte value2 = 2;
+        byte value3 = 3;
+        byte value4 = 4;
+        bytes.add(Byte.valueOf(value1));
+        bytes.add(Byte.valueOf(value2));
+        bytes.add(Byte.valueOf(value3));
+        bytes.add(Byte.valueOf(value4));
+
+        dst = Converters.vector_char_to_Mat(bytes);
+        truth = new Mat(4, 1, CvType.CV_8SC1);
+        truth.put(0, 0, 1, 2, 3, 4);
+        assertMatEqual(truth, dst);
+
+    }
+
+    public void testVector_DMatch_to_Mat() {
+        List<DMatch> matches = new ArrayList<DMatch>();
+        matches.add(new DMatch(1, 4, 4, 10));
+        matches.add(new DMatch(2, 3, 5, 6));
+        matches.add(new DMatch(3, 1, 8, 12));
+        matches.add(new DMatch(4, 9, 5, 15));
+
+        dst = Converters.vector_DMatch_to_Mat(matches);
+
+        Mat truth = new Mat(4, 1, CvType.CV_64FC4);
+        truth.put(0, 0, 1, 4, 4, 10, 2, 3, 5, 6, 3, 1, 8, 12, 4, 9, 5, 15);
+        assertMatEqual(truth, dst, EPS);
+    }
+
+    public void testVector_double_to_Mat() {
+        List<Double> inputVector = new ArrayList<Double>();
+        inputVector.add(2.0);
+        inputVector.add(4.0);
+        inputVector.add(3.0);
+        inputVector.add(9.0);
+
+        dst = Converters.vector_double_to_Mat(inputVector);
+        truth = new Mat(4, 1, CvType.CV_64FC1);
+        truth.put(0, 0, 2, 4, 3, 9);
+        assertMatEqual(truth, dst, EPS);
+    }
+
+    public void testVector_float_to_Mat() {
+        List<Float> inputVector = new ArrayList<Float>();
+        inputVector.add(2.0f);
+        inputVector.add(4.0f);
+        inputVector.add(3.0f);
+        inputVector.add(9.0f);
+
+        dst = Converters.vector_float_to_Mat(inputVector);
+        truth = new Mat(4, 1, CvType.CV_32FC1);
+        truth.put(0, 0, 2, 4, 3, 9);
+        assertMatEqual(truth, dst, EPS);
+    }
+
+    public void testVector_int_to_Mat() {
+        List<Integer> inputVector = new ArrayList<Integer>();
+        inputVector.add(2);
+        inputVector.add(4);
+        inputVector.add(3);
+        inputVector.add(9);
+
+        dst = Converters.vector_int_to_Mat(inputVector);
+        truth = new Mat(4, 1, CvType.CV_32SC1);
+        truth.put(0, 0, 2, 4, 3, 9);
+        assertMatEqual(truth, dst);
+    }
+
+    public void testVector_KeyPoint_to_Mat() {
+        List<KeyPoint> kps = new ArrayList<KeyPoint>();
+        kps.add(new KeyPoint(2, 4, 3, 9, 10, 12, 7));
+
+        dst = Converters.vector_KeyPoint_to_Mat(kps);
+
+        Mat truth = new Mat(1, 1, CvType.CV_64FC(7));
+        truth.put(0, 0, 2, 4, 3, 9, 10, 12, 7);
+
+        assertMatEqual(truth, dst, EPS);
+    }
+
+    public void testVector_Mat_to_Mat() {
+        // List<Mat> mats = new ArrayList<Mat>();
+        // mats.add(new Mat(2, 1, CvType.CV_32SC1, Scalar.all(2.0)));
+        // mats.add(new Mat(2, 1, CvType.CV_32SC1, Scalar.all(2.0)));
+        // mats.add(new Mat(2, 1, CvType.CV_32SC1, Scalar.all(2.0)));
+        // mats.add(new Mat(2, 1, CvType.CV_32SC1, Scalar.all(2.0)));
+        // mats.add(gray0);
+        // mats.add(gray255);
+        //
+        // dst = Converters.vector_Mat_to_Mat(mats);
+        fail("Not yet implemented");
+    }
+
+    public void testVector_Point_to_Mat() {
+        List<Point> points = new ArrayList<Point>();
+        points.add(new Point(2, 4));
+        points.add(new Point(3, 9));
+        points.add(new Point(10, 4));
+        points.add(new Point(35, 54));
+
+        dst = Converters.vector_Point_to_Mat(points);
+
+        truth = new Mat(4, 1, CvType.CV_32SC2);
+        truth.put(0, 0, 2, 4, 3, 9, 10, 4, 35, 54);
+        assertMatEqual(truth, dst);
+    }
+
+    public void testVector_Point_to_MatListOfPoint() {
+        fail("Not yet implemented");
+    }
+
+    public void testVector_Point_to_MatListOfPointInt() {
+        fail("Not yet implemented");
+    }
+
+    public void testVector_Point2d_to_Mat() {
+        List<Point> points = new ArrayList<Point>();
+        points.add(new Point(12.0, 4.0));
+        points.add(new Point(3.0, 9.0));
+        points.add(new Point(1.0, 2.0));
+
+        dst = Converters.vector_Point2d_to_Mat(points);
+
+        truth = new Mat(3, 1, CvType.CV_64FC2);
+        truth.put(0, 0, 12.0, 4.0, 3.0, 9.0, 1.0, 2.0);
+        assertMatEqual(truth, dst, EPS);
+    }
+
+    public void testVector_Point2f_to_Mat() {
+        List<Point> points = new ArrayList<Point>();
+        points.add(new Point(2.0, 3.0));
+        points.add(new Point(1.0, 2.0));
+        points.add(new Point(1.0, 4.0));
+
+        dst = Converters.vector_Point2f_to_Mat(points);
+
+        truth = new Mat(3, 1, CvType.CV_32FC2);
+        truth.put(0, 0, 2.0, 3.0, 1.0, 2.0, 1.0, 4.0);
+        assertMatEqual(truth, dst, EPS);
+    }
+
+    public void testVector_Point3_to_Mat() {
+        List<Point3> points = new ArrayList<Point3>();
+        points.add(new Point3(2, 4, 3));
+        points.add(new Point3(5, 9, 12));
+        points.add(new Point3(10, 14, 15));
+        points.add(new Point3(5, 11, 31));
+
+        dst = Converters.vector_Point3_to_Mat(points, CvType.CV_32S);
+        truth = new Mat(4, 1, CvType.CV_32SC3);
+        truth.put(0, 0, 2.0, 4.0, 3.0, 5.0, 9.0, 12.0, 10.0, 14.0, 15.0, 5.0, 11.0, 31.0);
+
+        assertMatEqual(truth, dst);
+    }
+
+    public void testVector_Point3d_to_Mat() {
+        List<Point3> points = new ArrayList<Point3>();
+        points.add(new Point3(2.0, 4.0, 3.0));
+        points.add(new Point3(5.0, 9.0, 12.0));
+        points.add(new Point3(10.0, 14.0, 15.0));
+        points.add(new Point3(5.0, 11.0, 31.0));
+
+        dst = Converters.vector_Point3d_to_Mat(points);
+        truth = new Mat(4, 1, CvType.CV_64FC3);
+        truth.put(0, 0, 2.0, 4.0, 3.0, 5.0, 9.0, 12.0, 10.0, 14.0, 15.0, 5.0, 11.0, 31.0);
+        assertMatEqual(truth, dst, EPS);
+    }
+
+    public void testVector_Point3f_to_Mat() {
+        List<Point3> points = new ArrayList<Point3>();
+        points.add(new Point3(2.0, 4.0, 3.0));
+        points.add(new Point3(5.0, 9.0, 12.0));
+        points.add(new Point3(10.0, 14.0, 15.0));
+        points.add(new Point3(5.0, 11.0, 31.0));
+
+        dst = Converters.vector_Point3f_to_Mat(points);
+        truth = new Mat(4, 1, CvType.CV_32FC3);
+        truth.put(0, 0, 2.0, 4.0, 3.0, 5.0, 9.0, 12.0, 10.0, 14.0, 15.0, 5.0, 11.0, 31.0);
+        assertMatEqual(truth, dst, EPS);
+    }
+
+    public void testVector_Point3i_to_Mat() {
+        List<Point3> points = new ArrayList<Point3>();
+        points.add(new Point3(2, 4, 3));
+        points.add(new Point3(5, 6, 2));
+        points.add(new Point3(0, 4, 5));
+        points.add(new Point3(5, 1, 3));
+
+        dst = Converters.vector_Point3i_to_Mat(points);
+
+        truth = new Mat(4, 1, CvType.CV_32SC3);
+        truth.put(0, 0, 2, 4, 3, 5, 6, 2, 0, 4, 5, 5, 1, 3);
+        assertMatEqual(truth, dst);
+    }
+
+    public void testVector_Rect_to_Mat() {
+        List<Rect> rectangles = new ArrayList<Rect>();
+        rectangles.add(new Rect(2, 2, 5, 2));
+        rectangles.add(new Rect(0, 0, 6, 4));
+
+        dst = Converters.vector_Rect_to_Mat(rectangles);
+
+        truth = new Mat(2, 1, CvType.CV_32SC4);
+        truth.put(0, 0, 2, 2, 5, 2, 0, 0, 6, 4);
+        assertMatEqual(truth, dst);
+    }
+
+    public void testVector_RotatedRect_to_Mat() {
+        List<RotatedRect> rectangles = new ArrayList<RotatedRect>();
+        rectangles.add(new RotatedRect(new Point(2, 2), new Size(5, 2), 7));
+        rectangles.add(new RotatedRect(new Point(0, 0), new Size(6, 4), 3));
+
+        Mat dst = Converters.vector_RotatedRect_to_Mat(rectangles);
+
+        Mat truth = new Mat(2, 1, CvType.CV_32FC(5));
+        truth.put(0, 0, 2, 2, 5, 2, 7,
+                        0, 0, 6, 4, 3);
+        assertMatEqual(truth, dst, EPS);
+    }
+
+    public void testVector_uchar_to_Mat() {
+        List<Byte> bytes = new ArrayList<Byte>();
+        byte value1 = 1;
+        byte value2 = 2;
+        byte value3 = 3;
+        byte value4 = 4;
+        bytes.add(Byte.valueOf(value1));
+        bytes.add(Byte.valueOf(value2));
+        bytes.add(Byte.valueOf(value3));
+        bytes.add(Byte.valueOf(value4));
+
+        dst = Converters.vector_uchar_to_Mat(bytes);
+        truth = new Mat(4, 1, CvType.CV_8UC1);
+        truth.put(0, 0, 1, 2, 3, 4);
+        assertMatEqual(truth, dst);
+    }
+
+    public void testVector_vector_char_to_Mat() {
+        fail("Not yet implemented");
+    }
+
+    public void testVector_vector_DMatch_to_Mat() {
+        fail("Not yet implemented");
+    }
+
+    public void testVector_vector_KeyPoint_to_Mat() {
+        fail("Not yet implemented");
+    }
+
+    public void testVector_vector_Point_to_Mat() {
+        fail("Not yet implemented");
+
+    }
+}