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Commit 9e00cc59 authored by Andrey Kamaev's avatar Andrey Kamaev
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Added face datection Android sample

parent 343bba93
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samples/android/face-detection/.classpath 0 → 100644
View file @ 9e00cc59
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" path="src"/>
<classpathentry kind="src" path="gen"/>
<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
<classpathentry kind="src" path="OpenCV-2.3.1_src"/>
<classpathentry kind="output" path="bin"/>
</classpath>
samples/android/face-detection/.project 0 → 100644
View file @ 9e00cc59
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>Sample - face-detection</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>com.android.ide.eclipse.adt.ApkBuilder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
<nature>org.eclipse.jdt.core.javanature</nature>
</natures>
<linkedResources>
<link>
<name>OpenCV-2.3.1_src</name>
<type>2</type>
<locationURI>_android_OpenCV_2_3_1_df28900a/src</locationURI>
</link>
</linkedResources>
</projectDescription>
samples/android/face-detection/.settings/org.eclipse.jdt.core.prefs 0 → 100644
View file @ 9e00cc59
#Wed Jun 29 04:36:40 MSD 2011
eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
org.eclipse.jdt.core.compiler.compliance=1.5
org.eclipse.jdt.core.compiler.source=1.5
samples/android/face-detection/AndroidManifest.xml 0 → 100644
View file @ 9e00cc59
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="org.opencv.samples.fd"
android:versionCode="1"
android:versionName="1.0">
<supports-screens android:resizeable="true"
android:smallScreens="true"
android:normalScreens="true"
android:largeScreens="true"
android:anyDensity="true" />
<application android:label="@string/app_name" android:icon="@drawable/icon">
<activity android:name="FdActivity"
android:label="@string/app_name"
android:screenOrientation="landscape"
android:configChanges="keyboardHidden|orientation">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.CAMERA"/>
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
</manifest>
samples/android/face-detection/default.properties 0 → 100644
View file @ 9e00cc59
android.library.reference.1=../../OpenCV-2.3.1
# Project target.
target=android-8
samples/android/face-detection/res/raw/lbpcascade_frontalface.xml 0 → 100644
View file @ 9e00cc59
<?xml version="1.0"?>
<!--
number of positive samples 3000
number of negative samples 1500
-->
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<cascade type_id="opencv-cascade-classifier">
<stageType>BOOST</stageType>
<featureType>LBP</featureType>
<height>24</height>
<width>24</width>
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<rect>
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</opencv_storage>
samples/android/face-detection/res/values/strings.xml 0 → 100644
View file @ 9e00cc59
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">OpenCV Sample - face-detection</string>
</resources>
samples/android/face-detection/src/org/opencv/samples/fd/FdActivity.java 0 → 100644
View file @ 9e00cc59
package org.opencv.samples.fd;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.Window;
public class FdActivity extends Activity {
private static final String TAG = "Sample::Activity";
private MenuItem mItemFace50;
private MenuItem mItemFace40;
private MenuItem mItemFace30;
private MenuItem mItemFace20;
public static float minFaceSize = 0.5f;
public FdActivity() {
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);
setContentView(new FdView(this));
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
Log.i(TAG, "onCreateOptionsMenu");
mItemFace50 = menu.add("Face size 50%");
mItemFace40 = menu.add("Face size 40%");
mItemFace30 = menu.add("Face size 30%");
mItemFace20 = menu.add("Face size 20%");
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Log.i(TAG, "Menu Item selected " + item);
if (item == mItemFace50)
minFaceSize = 0.5f;
else if (item == mItemFace40)
minFaceSize = 0.4f;
else if (item == mItemFace30)
minFaceSize = 0.3f;
else if (item == mItemFace20)
minFaceSize = 0.2f;
return true;
}
}
samples/android/face-detection/src/org/opencv/samples/fd/FdView.java 0 → 100644
View file @ 9e00cc59
package org.opencv.samples.fd;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.LinkedList;
import java.util.List;
import org.opencv.*;
import org.opencv.objdetect.CascadeClassifier;
import android.content.Context;
import android.graphics.Bitmap;
import android.util.Log;
import android.view.SurfaceHolder;
class FdView extends SampleCvViewBase {
private static final String TAG = "Sample::FdView";
private Mat mRgba;
private Mat mGray;
private CascadeClassifier mCascade;
public FdView(Context context) {
super(context);
try {
InputStream is = context.getResources().openRawResource(R.raw.lbpcascade_frontalface);
File cascadeDir = context.getDir("cascade", Context.MODE_PRIVATE);
File cascadeFile = new File(cascadeDir, "lbpcascade_frontalface.xml");
FileOutputStream os = new FileOutputStream(cascadeFile);
byte[] buffer = new byte[4096];
int bytesRead;
while ((bytesRead = is.read(buffer)) != -1) {
os.write(buffer, 0, bytesRead);
}
is.close();
os.close();
mCascade = new CascadeClassifier(cascadeFile.getAbsolutePath());
if (mCascade.empty()) {
Log.e(TAG, "Failed to load cascade classifier");
mCascade = null;
} else
Log.i(TAG, "Loaded cascade classifier from " + cascadeFile.getAbsolutePath());
cascadeFile.delete();
cascadeDir.delete();
} catch (IOException e) {
e.printStackTrace();
Log.e(TAG, "Failed to load cascade. Exception thrown: " + e);
}
}
@Override
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
super.surfaceChanged(_holder, format, width, height);
synchronized (this) {
// initialize Mats before usage
mGray = new Mat();
mRgba = new Mat();
}
}
@Override
protected Bitmap processFrame(VideoCapture capture) {
capture.retrieve(mRgba, highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA);
capture.retrieve(mGray, highgui.CV_CAP_ANDROID_GREY_FRAME);
if (mCascade != null) {
int height = mGray.rows();
int faceSize = Math.round(height * FdActivity.minFaceSize);
List<Rect> faces = new LinkedList<Rect>();
mCascade.detectMultiScale(mGray, faces, 1.1, 2, 2 // TODO: objdetect.CV_HAAR_SCALE_IMAGE
, new Size(faceSize, faceSize));
for (Rect r : faces)
core.rectangle(mRgba, r.tl(), r.br(), new Scalar(0, 255, 0, 255), 3);
}
Bitmap bmp = Bitmap.createBitmap(mRgba.cols(), mRgba.rows(), Bitmap.Config.ARGB_8888);
if (android.MatToBitmap(mRgba, bmp))
return bmp;
bmp.recycle();
return null;
}
@Override
public void run() {
super.run();
synchronized (this) {
// Explicitly deallocate Mats
if (mRgba != null)
mRgba.dispose();
if (mGray != null)
mGray.dispose();
mRgba = null;
mGray = null;
}
}
}
\ No newline at end of file
samples/android/face-detection/src/org/opencv/samples/fd/SampleCvViewBase.java 0 → 100644
View file @ 9e00cc59
package org.opencv.samples.fd;
import java.util.List;
import org.opencv.*;
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");
}
}
\ No newline at end of file
samples/android/image-manipulations/res/values/strings.xml
View file @ 9e00cc59
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">OpenCV sample - image-manipulations</string>
<string name="app_name">OpenCV Sample - image-manipulations</string>
</resources>
samples/android/image-manipulations/src/org/opencv/samples/imagemanipulations/ImageManipulationsView.java
View file @ 9e00cc59
......@@ -139,6 +139,16 @@ class ImageManipulationsView extends SampleCvViewBase {
synchronized (this) {
// Explicitly deallocate Mats
if (mZoomWindow != null)
mZoomWindow.dispose();
if (mZoomCorner != null)
mZoomCorner.dispose();
if (mBlurWindow != null)
mBlurWindow.dispose();
if (mGrayInnerWindow != null)
mGrayInnerWindow.dispose();
if (mRgbaInnerWindow != null)
mRgbaInnerWindow.dispose();
if (mRgba != null)
mRgba.dispose();
if (mGray != null)
......@@ -149,6 +159,11 @@ class ImageManipulationsView extends SampleCvViewBase {
mRgba = null;
mGray = null;
mIntermediateMat = null;
mRgbaInnerWindow = null;
mGrayInnerWindow = null;
mBlurWindow = null;
mZoomCorner = null;
mZoomWindow = null;
}
}
}
\ No newline at end of file
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