mirror of https://github.com/opencv/opencv.git
Andrey Kamaev
14 years ago
parent
343bba93db
commit
9e00cc59af
13 changed files with 1885 additions and 1 deletions
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<?xml version="1.0" encoding="UTF-8"?> |
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<classpath> |
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<classpathentry kind="src" path="src"/> |
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<classpathentry kind="src" path="gen"/> |
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<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/> |
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<classpathentry kind="src" path="OpenCV-2.3.1_src"/> |
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<classpathentry kind="output" path="bin"/> |
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</classpath> |
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<?xml version="1.0" encoding="UTF-8"?> |
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<projectDescription> |
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<name>Sample - face-detection</name> |
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<comment></comment> |
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<projects> |
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</projects> |
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<buildSpec> |
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<buildCommand> |
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<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name> |
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<arguments> |
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</arguments> |
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</buildCommand> |
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<buildCommand> |
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<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name> |
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<arguments> |
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</arguments> |
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</buildCommand> |
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<buildCommand> |
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<name>org.eclipse.jdt.core.javabuilder</name> |
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<arguments> |
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</arguments> |
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</buildCommand> |
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<buildCommand> |
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<name>com.android.ide.eclipse.adt.ApkBuilder</name> |
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<arguments> |
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</arguments> |
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</buildCommand> |
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</buildSpec> |
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<natures> |
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<nature>com.android.ide.eclipse.adt.AndroidNature</nature> |
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<nature>org.eclipse.jdt.core.javanature</nature> |
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</natures> |
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<linkedResources> |
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<link> |
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<name>OpenCV-2.3.1_src</name> |
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<type>2</type> |
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<locationURI>_android_OpenCV_2_3_1_df28900a/src</locationURI> |
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</link> |
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</linkedResources> |
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</projectDescription> |
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@ -0,0 +1,5 @@ |
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#Wed Jun 29 04:36:40 MSD 2011 |
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eclipse.preferences.version=1 |
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org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5 |
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org.eclipse.jdt.core.compiler.compliance=1.5 |
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org.eclipse.jdt.core.compiler.source=1.5 |
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@ -0,0 +1,31 @@ |
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<?xml version="1.0" encoding="utf-8"?> |
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<manifest xmlns:android="http://schemas.android.com/apk/res/android" |
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package="org.opencv.samples.fd" |
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android:versionCode="1" |
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android:versionName="1.0"> |
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|
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<supports-screens android:resizeable="true" |
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android:smallScreens="true" |
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android:normalScreens="true" |
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android:largeScreens="true" |
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android:anyDensity="true" /> |
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|
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<application android:label="@string/app_name" android:icon="@drawable/icon"> |
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<activity android:name="FdActivity" |
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android:label="@string/app_name" |
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android:screenOrientation="landscape" |
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android:configChanges="keyboardHidden|orientation"> |
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<intent-filter> |
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<action android:name="android.intent.action.MAIN" /> |
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<category android:name="android.intent.category.LAUNCHER" /> |
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</intent-filter> |
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</activity> |
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</application> |
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|
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<uses-sdk android:minSdkVersion="8" /> |
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|
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<uses-permission android:name="android.permission.CAMERA"/> |
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<uses-feature android:name="android.hardware.camera" /> |
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<uses-feature android:name="android.hardware.camera.autofocus" /> |
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|
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</manifest> |
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android.library.reference.1=../../OpenCV-2.3.1 |
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# Project target. |
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target=android-8 |
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|
After Width: | Height: | Size: 5.6 KiB |
File diff suppressed because it is too large
Load Diff
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<?xml version="1.0" encoding="utf-8"?> |
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<resources> |
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<string name="app_name">OpenCV Sample - face-detection</string> |
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</resources> |
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package org.opencv.samples.fd; |
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|
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import android.app.Activity; |
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import android.os.Bundle; |
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import android.util.Log; |
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import android.view.Menu; |
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import android.view.MenuItem; |
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import android.view.Window; |
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|
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public class FdActivity extends Activity { |
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private static final String TAG = "Sample::Activity"; |
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|
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private MenuItem mItemFace50; |
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private MenuItem mItemFace40; |
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private MenuItem mItemFace30; |
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private MenuItem mItemFace20; |
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public static float minFaceSize = 0.5f; |
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public FdActivity() { |
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Log.i(TAG, "Instantiated new " + this.getClass()); |
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} |
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|
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/** Called when the activity is first created. */ |
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@Override |
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public void onCreate(Bundle savedInstanceState) { |
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Log.i(TAG, "onCreate"); |
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super.onCreate(savedInstanceState); |
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requestWindowFeature(Window.FEATURE_NO_TITLE); |
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setContentView(new FdView(this)); |
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} |
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|
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@Override |
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public boolean onCreateOptionsMenu(Menu menu) { |
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Log.i(TAG, "onCreateOptionsMenu"); |
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mItemFace50 = menu.add("Face size 50%"); |
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mItemFace40 = menu.add("Face size 40%"); |
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mItemFace30 = menu.add("Face size 30%"); |
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mItemFace20 = menu.add("Face size 20%"); |
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return true; |
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} |
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|
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@Override |
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public boolean onOptionsItemSelected(MenuItem item) { |
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Log.i(TAG, "Menu Item selected " + item); |
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if (item == mItemFace50) |
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minFaceSize = 0.5f; |
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else if (item == mItemFace40) |
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minFaceSize = 0.4f; |
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else if (item == mItemFace30) |
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minFaceSize = 0.3f; |
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else if (item == mItemFace20) |
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minFaceSize = 0.2f; |
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return true; |
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} |
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} |
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@ -0,0 +1,109 @@ |
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package org.opencv.samples.fd; |
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import java.io.File; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.util.LinkedList; |
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import java.util.List; |
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import org.opencv.*; |
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import org.opencv.objdetect.CascadeClassifier; |
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import android.content.Context; |
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import android.graphics.Bitmap; |
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import android.util.Log; |
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import android.view.SurfaceHolder; |
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class FdView extends SampleCvViewBase { |
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private static final String TAG = "Sample::FdView"; |
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private Mat mRgba; |
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private Mat mGray; |
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private CascadeClassifier mCascade; |
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public FdView(Context context) { |
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super(context); |
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try { |
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InputStream is = context.getResources().openRawResource(R.raw.lbpcascade_frontalface); |
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File cascadeDir = context.getDir("cascade", Context.MODE_PRIVATE); |
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File cascadeFile = new File(cascadeDir, "lbpcascade_frontalface.xml"); |
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FileOutputStream os = new FileOutputStream(cascadeFile); |
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byte[] buffer = new byte[4096]; |
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int bytesRead; |
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while ((bytesRead = is.read(buffer)) != -1) { |
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os.write(buffer, 0, bytesRead); |
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} |
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is.close(); |
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os.close(); |
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mCascade = new CascadeClassifier(cascadeFile.getAbsolutePath()); |
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if (mCascade.empty()) { |
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Log.e(TAG, "Failed to load cascade classifier"); |
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mCascade = null; |
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} else |
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Log.i(TAG, "Loaded cascade classifier from " + cascadeFile.getAbsolutePath()); |
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cascadeFile.delete(); |
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cascadeDir.delete(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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Log.e(TAG, "Failed to load cascade. Exception thrown: " + e); |
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} |
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} |
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@Override |
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public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) { |
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super.surfaceChanged(_holder, format, width, height); |
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synchronized (this) { |
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// initialize Mats before usage
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mGray = new Mat(); |
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mRgba = new Mat(); |
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} |
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} |
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@Override |
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protected Bitmap processFrame(VideoCapture capture) { |
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capture.retrieve(mRgba, highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA); |
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capture.retrieve(mGray, highgui.CV_CAP_ANDROID_GREY_FRAME); |
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if (mCascade != null) { |
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int height = mGray.rows(); |
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int faceSize = Math.round(height * FdActivity.minFaceSize); |
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List<Rect> faces = new LinkedList<Rect>(); |
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mCascade.detectMultiScale(mGray, faces, 1.1, 2, 2 // TODO: objdetect.CV_HAAR_SCALE_IMAGE
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, new Size(faceSize, faceSize)); |
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for (Rect r : faces) |
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core.rectangle(mRgba, r.tl(), r.br(), new Scalar(0, 255, 0, 255), 3); |
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} |
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Bitmap bmp = Bitmap.createBitmap(mRgba.cols(), mRgba.rows(), Bitmap.Config.ARGB_8888); |
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if (android.MatToBitmap(mRgba, bmp)) |
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return bmp; |
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bmp.recycle(); |
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return null; |
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} |
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@Override |
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public void run() { |
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super.run(); |
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synchronized (this) { |
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// Explicitly deallocate Mats
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if (mRgba != null) |
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mRgba.dispose(); |
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if (mGray != null) |
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mGray.dispose(); |
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mRgba = null; |
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mGray = null; |
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} |
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} |
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} |
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@ -0,0 +1,108 @@ |
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package org.opencv.samples.fd; |
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import java.util.List; |
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import org.opencv.*; |
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import android.content.Context; |
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import android.graphics.Bitmap; |
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import android.graphics.Canvas; |
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import android.util.Log; |
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import android.view.SurfaceHolder; |
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import android.view.SurfaceView; |
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public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHolder.Callback, Runnable { |
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private static final String TAG = "Sample::SurfaceView"; |
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private SurfaceHolder mHolder; |
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private VideoCapture mCamera; |
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public SampleCvViewBase(Context context) { |
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super(context); |
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mHolder = getHolder(); |
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mHolder.addCallback(this); |
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Log.i(TAG, "Instantiated new " + this.getClass()); |
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} |
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public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) { |
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Log.i(TAG, "surfaceCreated"); |
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synchronized (this) { |
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if (mCamera != null && mCamera.isOpened()) { |
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Log.i(TAG, "before mCamera.getSupportedPreviewSizes()"); |
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List<Size> sizes = mCamera.getSupportedPreviewSizes(); |
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Log.i(TAG, "after mCamera.getSupportedPreviewSizes()"); |
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int mFrameWidth = width; |
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int mFrameHeight = height; |
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// selecting optimal camera preview size
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{ |
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double minDiff = Double.MAX_VALUE; |
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for (Size size : sizes) { |
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if (Math.abs(size.height - height) < minDiff) { |
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mFrameWidth = (int) size.width; |
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mFrameHeight = (int) size.height; |
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minDiff = Math.abs(size.height - height); |
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} |
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} |
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} |
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mCamera.set(highgui.CV_CAP_PROP_FRAME_WIDTH, mFrameWidth); |
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mCamera.set(highgui.CV_CAP_PROP_FRAME_HEIGHT, mFrameHeight); |
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} |
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} |
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} |
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public void surfaceCreated(SurfaceHolder holder) { |
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Log.i(TAG, "surfaceCreated"); |
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mCamera = new VideoCapture(highgui.CV_CAP_ANDROID); |
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if (mCamera.isOpened()) { |
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(new Thread(this)).start(); |
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} else { |
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mCamera.release(); |
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mCamera = null; |
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Log.e(TAG, "Failed to open native camera"); |
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} |
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} |
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public void surfaceDestroyed(SurfaceHolder holder) { |
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Log.i(TAG, "surfaceDestroyed"); |
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if (mCamera != null) { |
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synchronized (this) { |
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mCamera.release(); |
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mCamera = null; |
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} |
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} |
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} |
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protected abstract Bitmap processFrame(VideoCapture capture); |
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public void run() { |
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Log.i(TAG, "Starting processing thread"); |
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while (true) { |
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Bitmap bmp = null; |
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synchronized (this) { |
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if (mCamera == null) |
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break; |
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if (!mCamera.grab()) { |
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Log.e(TAG, "mCamera.grab() failed"); |
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break; |
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} |
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bmp = processFrame(mCamera); |
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} |
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if (bmp != null) { |
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Canvas canvas = mHolder.lockCanvas(); |
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if (canvas != null) { |
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canvas.drawBitmap(bmp, (canvas.getWidth() - bmp.getWidth()) / 2, (canvas.getHeight() - bmp.getHeight()) / 2, null); |
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mHolder.unlockCanvasAndPost(canvas); |
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} |
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bmp.recycle(); |
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} |
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} |
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Log.i(TAG, "Finishing processing thread"); |
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} |
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} |
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@ -1,4 +1,4 @@ |
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<?xml version="1.0" encoding="utf-8"?> |
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<resources> |
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<string name="app_name">OpenCV sample - image-manipulations</string> |
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<string name="app_name">OpenCV Sample - image-manipulations</string> |
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</resources> |
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|
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