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Base classes for sample added.

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This commit is contained in:
Alexander Smorkalov 2012-04-27 13:37:45 +00:00
parent c78d056ef6
commit d015a50d51
8 changed files with 242 additions and 11 deletions
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1
samples/android/color-blob-detection/.classpath
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@ -2,7 +2,6 @@
<classpath>
<classpathentry kind="src" path="src"/>
<classpathentry kind="src" path="gen"/>
<classpathentry combineaccessrules="false" kind="src" path="/ColorBlobDetection"/>
<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
<classpathentry kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
<classpathentry kind="output" path="bin/classes"/>

3
samples/android/color-blob-detection/.project
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@ -1,9 +1,8 @@
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>ColorBlobDetectionTest</name>
<name>ColorBlobDetection</name>
<comment></comment>
<projects>
<project>ColorBlobDetection</project>
</projects>
<buildSpec>
<buildCommand>

20
samples/android/color-blob-detection/AndroidManifest.xml
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@ -1,19 +1,27 @@
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="org.opencv.example.colorblobdetect.test"
package="org.opencv.example.colorblobdetect"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<instrumentation
android:name="android.test.InstrumentationTestRunner"
android:targetPackage="org.opencv.example.colorblobdetect" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<uses-library android:name="android.test.runner" />
<activity
android:name="org.opencv.samples.colorblobdetect.ColorBlobDetectionActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
</manifest>

1
samples/android/color-blob-detection/project.properties
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@ -12,3 +12,4 @@
# Project target.
target=android-8
android.library.reference.1=../../../android/build

4
samples/android/color-blob-detection/res/values/strings.xml
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@ -1,7 +1,7 @@
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">Hello World!</string>
<string name="app_name">ColorBlobDetectionTest</string>
<string name="hello">Hello World, ColorBlobDetectionActivity!</string>
<string name="app_name">ColorBlobDetection</string>
</resources>

27
samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/ColorBlobDetectionActivity.java Normal file
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@ -0,0 +1,27 @@
package org.opencv.samples.colorblobdetect;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Window;
public class ColorBlobDetectionActivity extends Activity {
private static final String TAG = "Example/CollorBlobDetection";
private ColorBlobDetectionView mView;
public ColorBlobDetectionActivity()
{
Log.i(TAG, "Instantiated new " + this.getClass());
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "onCreate");
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
mView = new ColorBlobDetectionView(this);
setContentView(mView);
}
}

87
samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/ColorBlobDetectionView.java Normal file
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@ -0,0 +1,87 @@
package org.opencv.samples.colorblobdetect;
import org.opencv.android.Utils;
import org.opencv.core.Mat;
import org.opencv.highgui.Highgui;
import org.opencv.highgui.VideoCapture;
import android.content.Context;
import android.graphics.Bitmap;
import android.util.Log;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.View;
import android.view.View.OnTouchListener;
public class ColorBlobDetectionView extends SampleCvViewBase implements
OnTouchListener {
private Mat mRgba;
private static final String TAG = "Example/CollorBlobDetection";
public ColorBlobDetectionView(Context context)
{
super(context);
setOnTouchListener(this);
}
@Override
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
super.surfaceChanged(_holder, format, width, height);
synchronized (this) {
// initialize Mat before usage
mRgba = new Mat();
}
}
@Override
public boolean onTouch(View v, MotionEvent event)
{
// TODO Auto-generated method stub
int cols = mRgba.cols();
int rows = mRgba.rows();
int xoffset = (getWidth() - cols) / 2;
int yoffset = (getHeight() - rows) / 2;
int x = (int)event.getX() - xoffset;
int y = (int)event.getY() - yoffset;
double TouchedColor[] = mRgba.get(x,y);
Log.i(TAG, "Touch coordinates: (" + x + ", " + y + ")");
Log.i(TAG, "Touched rgba color: (" + TouchedColor[0] + ", " + TouchedColor[1] +
", " + TouchedColor[2] + ", " + TouchedColor[0] + ",)");
return false; // don't need subsequent touch events
}
@Override
protected Bitmap processFrame(VideoCapture capture) {
// TODO Auto-generated method stub
capture.retrieve(mRgba, Highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA);
Bitmap bmp = Bitmap.createBitmap(mRgba.cols(), mRgba.rows(), Bitmap.Config.ARGB_8888);
try {
Utils.matToBitmap(mRgba, bmp);
} catch(Exception e) {
Log.e(TAG, "Utils.matToBitmap() throws an exception: " + e.getMessage());
bmp.recycle();
bmp = null;
}
return bmp;
}
@Override
public void run() {
super.run();
synchronized (this) {
// Explicitly deallocate Mats
if (mRgba != null)
mRgba.release();
mRgba = null;
}
}
}

110
samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/SampleCvViewBase.java Normal file
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@ -0,0 +1,110 @@
package org.opencv.samples.colorblobdetect;
import java.util.List;
import org.opencv.core.Size;
import org.opencv.highgui.VideoCapture;
import org.opencv.highgui.Highgui;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHolder.Callback, Runnable {
private static final String TAG = "Sample::SurfaceView";
private SurfaceHolder mHolder;
private VideoCapture mCamera;
public SampleCvViewBase(Context context) {
super(context);
mHolder = getHolder();
mHolder.addCallback(this);
Log.i(TAG, "Instantiated new " + this.getClass());
}
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
Log.i(TAG, "surfaceCreated");
synchronized (this) {
if (mCamera != null && mCamera.isOpened()) {
Log.i(TAG, "before mCamera.getSupportedPreviewSizes()");
List<Size> sizes = mCamera.getSupportedPreviewSizes();
Log.i(TAG, "after mCamera.getSupportedPreviewSizes()");
int mFrameWidth = width;
int mFrameHeight = height;
// selecting optimal camera preview size
{
double minDiff = Double.MAX_VALUE;
for (Size size : sizes) {
if (Math.abs(size.height - height) < minDiff) {
mFrameWidth = (int) size.width;
mFrameHeight = (int) size.height;
minDiff = Math.abs(size.height - height);
}
}
}
mCamera.set(Highgui.CV_CAP_PROP_FRAME_WIDTH, mFrameWidth);
mCamera.set(Highgui.CV_CAP_PROP_FRAME_HEIGHT, mFrameHeight);
}
}
}
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "surfaceCreated");
mCamera = new VideoCapture(Highgui.CV_CAP_ANDROID);
if (mCamera.isOpened()) {
(new Thread(this)).start();
} else {
mCamera.release();
mCamera = null;
Log.e(TAG, "Failed to open native camera");
}
}
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i(TAG, "surfaceDestroyed");
if (mCamera != null) {
synchronized (this) {
mCamera.release();
mCamera = null;
}
}
}
protected abstract Bitmap processFrame(VideoCapture capture);
public void run() {
Log.i(TAG, "Starting processing thread");
while (true) {
Bitmap bmp = null;
synchronized (this) {
if (mCamera == null)
break;
if (!mCamera.grab()) {
Log.e(TAG, "mCamera.grab() failed");
break;
}
bmp = processFrame(mCamera);
}
if (bmp != null) {
Canvas canvas = mHolder.lockCanvas();
if (canvas != null) {
canvas.drawBitmap(bmp, (canvas.getWidth() - bmp.getWidth()) / 2, (canvas.getHeight() - bmp.getHeight()) / 2, null);
mHolder.unlockCanvasAndPost(canvas);
}
bmp.recycle();
}
}
Log.i(TAG, "Finishing processing thread");
}
}