カスタムカメラでは、アンドロイドではっきりした画像キャプチャが得られません

Question

カスタムカメラを使用して画像を撮影するアプリケーションを作成しましたが、カメラはインテントカメラのようにはっきり見える画像をキャプチャしません。この画像で

Custom_CameraActivity.java:-

public class Custom_CameraActivity extends Activity { 
private Camera mCamera; 
private CameraPreview mCameraPreview; 
Context context; 

/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
    context = getApplicationContext(); 
    mCamera = getCameraInstance(); 
    mCameraPreview = new CameraPreview(this, mCamera); 
    SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 
    preview.addView(mCameraPreview); 

    Button captureButton = (Button) findViewById(R.id.button_capture); 
    captureButton.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      mCamera.takePicture(null, null, mPicture); 
     } 
    }); 
} 

/** 
* Helper method to access the camera returns null if it cannot get the 
* camera or does not exist 
* 
* @return 
*/ 
private Camera getCameraInstance() { 
    Camera camera = null; 
    try { 
     camera = Camera.open(); 
     Camera.Parameters parameters = camera.getParameters(); 
     parameters.set("jpeg-quality", 100); 
     parameters.setPictureFormat(PixelFormat.JPEG); 
     parameters.setPictureSize(800, 600); 
     parameters.setRotation(180); 
     camera.setDisplayOrientation(90); 
     camera.setParameters(parameters); 
    } catch (Exception e) { 
     // cannot get camera or does not exist 
    } 
    return camera; 
} 

Camera.PictureCallback mPicture = new Camera.PictureCallback() { 
    @Override 
    public void onPictureTaken(byte[] data, Camera camera) { 
     try { 
      Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length); 
      if (bitmap.getWidth() > bitmap.getHeight()) { 
       Matrix matrix = new Matrix(); 
       matrix.postRotate(180); 
       bitmap = Bitmap.createBitmap(bitmap , 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true); 
      } 
      } catch (Exception e) { 

     } 
    } 
}; 

}

CameraPreview.java:-

public class CameraPreview extends SurfaceView implements 
    SurfaceHolder.Callback { 
private SurfaceHolder mSurfaceHolder; 
private Camera mCamera; 

// Constructor that obtains context and camera 
@SuppressWarnings("deprecation") 
public CameraPreview(Context context, Camera camera) { 
    super(context); 
    this.mCamera = camera; 
    this.mSurfaceHolder = this.getHolder(); 
    this.mSurfaceHolder.addCallback(this); 
    this.mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 
} 

@Override 
public void surfaceCreated(SurfaceHolder surfaceHolder) { 
    try { 
     mCamera.setPreviewDisplay(surfaceHolder); 
     mCamera.startPreview(); 
    } catch (IOException e) { 
     // left blank for now 
    } 
} 

@Override 
public void surfaceDestroyed(SurfaceHolder surfaceHolder) { 
    mCamera.stopPreview(); 
    mCamera.release(); 
} 

@Override 
public void surfaceChanged(SurfaceHolder surfaceHolder, int format, 
          int width, int height) { 
    // start preview with new settings 
    try { 
     mCamera.setPreviewDisplay(surfaceHolder); 
     mCamera.startPreview(); 
    } catch (Exception e) { 
     // intentionally left blank for a test 
    } 
}} 

文字「でき：ここにコードがあります読んでください。

Answer 1

はコードの下に追加することによって、問題を修正してみてください： -

Camera.Parameters params = c.getParameters(); 
if (params.getSupportedFocusModes().contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE)) { 
    params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE); 
} else { 
    params.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO); 
} 
c.setParameters(params); 

Answer 2

この

private Camera getCameraInstance() { 
Camera camera = null; 
try { 
    camera = Camera.open(); 
    Camera.Parameters parameters = camera.getParameters(); 
    parameters.set("s3d-prv-frame-layout", "none"); 
    parameters.set("s3d-cap-frame-layout", "none"); 
    parameters.set("iso", "auto"); 
    parameters.set("contrast", 100); 
    parameters.set("brightness", 50); 
    parameters.set("saturation", 100); 
    parameters.set("sharpness", 100); 
    parameters.setAntibanding("auto"); 
    parameters.setPictureFormat(ImageFormat.JPEG); 
    parameters.set("jpeg-quality", 100); 
    if (params.isZoomSupported()) 
     params.setZoom(0);  
    parameters.setPictureSize(800, 600); 
    parameters.setRotation(180); 
    camera.setDisplayOrientation(90); 
    camera.setParameters(parameters); 
} catch (Exception e) { 
    // cannot get camera or does not exist 
} 
    return camera; 
} 

EDIT 1.

Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length); 
bitmap.compress(Bitmap.CompressFormat.PNG, 100, bytes);