Java API: corrected names of methods in Utils class; fixed bug in DMatch (thank for Hussein Abdinoor); added new utility method loadResource

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

@@ -54,12 +54,13 @@ public class OpenCVTestRunner extends InstrumentationTestRunner {
     @Override
     public void onStart() {
         context = getContext();
-        LENA_PATH = Utils.ExportResource(context, R.drawable.lena);
-        CHESS_PATH = Utils.ExportResource(context, R.drawable.chessboard);
-        LBPCASCADE_FRONTALFACE_PATH = Utils.ExportResource(context, R.raw.lbpcascade_frontalface);
+        LENA_PATH = Utils.exportResource(context, R.drawable.lena);
+        CHESS_PATH = Utils.exportResource(context, R.drawable.chessboard);
+        LBPCASCADE_FRONTALFACE_PATH = Utils.exportResource(context, R.raw.lbpcascade_frontalface);
 
         /*
-         * The original idea about test order randomization is from marek.defecinski blog.
+         * The original idea about test order randomization is from
+         * marek.defecinski blog.
          */
         // List<TestCase> testCases = androidTestRunner.getTestCases();
         // Collections.shuffle(testCases); //shuffle the tests order

modules/java/android_test/src/org/opencv/test/android/UtilsTest.java

@@ -16,6 +16,14 @@ public class UtilsTest extends OpenCVTestCase {
         fail("Not yet implemented");
     }
 
+    public void testLoadResourceContextInt() {
+        fail("Not yet implemented");
+    }
+
+    public void testLoadResourceContextIntInt() {
+        fail("Not yet implemented");
+    }
+
     public void testMatToBitmap() {
         fail("Not yet implemented");
     }

modules/java/src/java/android+Utils.java

@@ -1,23 +1,26 @@
 package org.opencv.android;
 
+import android.content.Context;
+import android.graphics.Bitmap;
+
 import org.opencv.core.CvException;
+import org.opencv.core.CvType;
 import org.opencv.core.Mat;
+import org.opencv.highgui.Highgui;
 
+import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 
-import android.content.Context;
-import android.graphics.Bitmap;
-
 public class Utils {
 
-    public static String ExportResource(Context context, int resourceId) {
-        return ExportResource(context, resourceId, "OpenCV_data");
+    public static String exportResource(Context context, int resourceId) {
+        return exportResource(context, resourceId, "OpenCV_data");
     }
 
-    public static String ExportResource(Context context, int resourceId, String dirname) {
+    public static String exportResource(Context context, int resourceId, String dirname) {
         String fullname = context.getResources().getString(resourceId);
         String resName = fullname.substring(fullname.lastIndexOf("/") + 1);
         try {
@@ -43,11 +46,38 @@ public class Utils {
         }
     }
 
-    public static Mat BitmapToMat(Bitmap b) {
+    public static Mat loadResource(Context context, int resourceId) throws IOException
+    {
+        return loadResource(context, resourceId, -1);
+    }
+
+    public static Mat loadResource(Context context, int resourceId, int flags) throws IOException
+    {
+        InputStream is = context.getResources().openRawResource(resourceId);
+        ByteArrayOutputStream os = new ByteArrayOutputStream(is.available());
+
+        byte[] buffer = new byte[4096];
+        int bytesRead;
+        while ((bytesRead = is.read(buffer)) != -1) {
+            os.write(buffer, 0, bytesRead);
+        }
+        is.close();
+
+        Mat encoded = new Mat(1, os.size(), CvType.CV_8U);
+        encoded.put(0, 0, os.toByteArray());
+        os.close();
+
+        Mat decoded = Highgui.imdecode(encoded, flags);
+        encoded.release();
+
+        return decoded;
+    }
+
+    public static Mat bitmapToMat(Bitmap b) {
         return new Mat(nBitmapToMat(b));
     }
 
-    public static boolean MatToBitmap(Mat m, Bitmap b) {
+    public static boolean matToBitmap(Mat m, Bitmap b) {
         return nMatToBitmap(m.nativeObj, b);
     }
 

modules/java/src/java/features2d+DMatch.java

@@ -48,7 +48,7 @@ public class DMatch {
     /**
      * less is better
      */
-    boolean lessThan(DMatch it) {
+    public boolean lessThan(DMatch it) {
         return distance < it.distance;
     }
 

samples/android/15-puzzle/src/org/opencv/samples/puzzle15/puzzle15View.java

@@ -137,7 +137,7 @@ public class puzzle15View extends SampleCvViewBase implements OnTouchListener {
         drawGrid(cols, rows);
 
         Bitmap bmp = Bitmap.createBitmap(cols, rows, Bitmap.Config.ARGB_8888);
-        if (Utils.MatToBitmap(mRgba15, bmp))
+        if (Utils.matToBitmap(mRgba15, bmp))
             return bmp;
 
         bmp.recycle();

samples/android/face-detection/src/org/opencv/samples/fd/FdView.java

@@ -91,7 +91,7 @@ class FdView extends SampleCvViewBase {
 
         Bitmap bmp = Bitmap.createBitmap(mRgba.cols(), mRgba.rows(), Bitmap.Config.ARGB_8888);
 
-        if (Utils.MatToBitmap(mRgba, bmp))
+        if (Utils.matToBitmap(mRgba, bmp))
             return bmp;
 
         bmp.recycle();

samples/android/image-manipulations/src/org/opencv/samples/imagemanipulations/ImageManipulationsView.java

@@ -135,7 +135,7 @@ class ImageManipulationsView extends SampleCvViewBase {
 
         Bitmap bmp = Bitmap.createBitmap(mRgba.cols(), mRgba.rows(), Bitmap.Config.ARGB_8888);
 
-        if (Utils.MatToBitmap(mRgba, bmp))
+        if (Utils.matToBitmap(mRgba, bmp))
             return bmp;
 
         bmp.recycle();

samples/android/tutorial-1-addopencv/src/org/opencv/samples/tutorial1/Sample1View.java

@@ -56,7 +56,7 @@ class Sample1View extends SampleViewBase {
 
         Bitmap bmp = Bitmap.createBitmap(getFrameWidth(), getFrameHeight(), Bitmap.Config.ARGB_8888);
 
-        if (Utils.MatToBitmap(mRgba, bmp))
+        if (Utils.matToBitmap(mRgba, bmp))
             return bmp;
 
         bmp.recycle();

samples/android/tutorial-2-opencvcamera/src/org/opencv/samples/tutorial2/Sample2View.java

@@ -54,7 +54,7 @@ class Sample2View extends SampleCvViewBase {
 
         Bitmap bmp = Bitmap.createBitmap(mRgba.cols(), mRgba.rows(), Bitmap.Config.ARGB_8888);
 
-        if (Utils.MatToBitmap(mRgba, bmp))
+        if (Utils.matToBitmap(mRgba, bmp))
             return bmp;
 
         bmp.recycle();

samples/android/tutorial-3-native/.project

@@ -25,6 +25,16 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.ui.externaltools.ExternalToolBuilder</name>
+			<triggers>auto,full,incremental,</triggers>
+			<arguments>
+				<dictionary>
+					<key>LaunchConfigHandle</key>
+					<value>&lt;project&gt;/.externalToolBuilders/Tutorial 2.1 Builder.launch</value>
+				</dictionary>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>com.android.ide.eclipse.adt.AndroidNature</nature>

samples/android/tutorial-4-mixed/src/org/opencv/samples/tutorial4/Sample4View.java

@@ -56,7 +56,7 @@ class Sample4View extends SampleViewBase {
 
         Bitmap bmp = Bitmap.createBitmap(getFrameWidth(), getFrameHeight(), Bitmap.Config.ARGB_8888);
 
-        if (Utils.MatToBitmap(mRgba, bmp))
+        if (Utils.matToBitmap(mRgba, bmp))
             return bmp;
 
         bmp.recycle();