在android中与相机捕获的图像叠加图像

Posted 2023-04-17

【中文标题】在android中与相机捕获的图像叠加图像

【英文标题】：Image overlay with camera captured image in android

【发布时间】：2012-01-11 05:32:04

【问题描述】：

我需要用相机拍照，同时在相机视图顶部显示叠加图像。拍照后，我需要保存用户在拍照时看到的内容。任何人都可以建议我吗？请。

【问题讨论】：

你有想过这个吗？我也需要这样做。已让相机使用叠加层，但我无法将两者一起保存为一张图像。

capturing image from camera and overlaying another bitmap before we save it的可能重复

【参考方案1】：

  public void onPictureTaken(byte[] data, Camera camera)
  Bitmap cameraBitmap = BitmapFactory.decodeByteArray(data, 0, data.length);

  wid = cameraBitmap.getWidth();
  hgt = cameraBitmap.getHeight();


 Bitmap newImage = Bitmap.createBitmap(wid , hgt , Bitmap.Config.ARGB_8888);

  Canvas canvas = new Canvas(newImage);

  canvas.drawBitmap(cameraBitmap, 0f, 0f, null);

  Drawable drawable = getResources().getDrawable(R.drawable.d);
  drawable.setBounds(20 ,20, 260, 160);
  drawable.draw(canvas);

  File storagePath = new File(Environment.getExternalStorageDirectory() + "/Vampire Photos/"); 
  storagePath.mkdirs(); 

  File myImage = new File(storagePath,Long.toString(System.currentTimeMillis()) + ".jpg");

  try
  
    FileOutputStream out = new FileOutputStream(myImage);
    newImage.compress(Bitmap.CompressFormat.JPEG, 90, out);


    out.flush();
    out.close();
  
  catch(FileNotFoundException e)
  
   Log.d("In Saving File", e + "");
  
  catch(IOException e)
  
    Log.d("In Saving File", e + "");
    

  camera.startPreview();

  drawable = null;

  newImage.recycle();
  newImage = null;

  cameraBitmap.recycle();
  cameraBitmap = null;
  ;