private String storeImage(Bitmap bitmap,String fileName){
        String dirPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/FilterImages";
        File dir = new File(dirPath);
        if(!dir.exists()){
            dir.mkdir();
        }
        File file = new File(dirPath,fileName);
        try{
            FileOutputStream fileOutputStream = new FileOutputStream(file);
            bitmap.compress(Bitmap.CompressFormat.PNG,100,fileOutputStream);
            fileOutputStream.flush();
            fileOutputStream.close();
            //Toast.makeText(this, "Saved: " + file, Toast.LENGTH_SHORT).show();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        String filePath = dirPath + "/" + fileName;
        return filePath;
    }

    public void copyFileOrDir(String path) {
        AssetManager assetManager = this.getAssets();
        String assets[] = null;
        try {
            assets = assetManager.list(path);
            if (assets.length == 0) {
                copyFile(path);
            } else {

                String fullPath = "data/data/" + this.getPackageName() + "/" + path;
                Log.i("INFO","Copying to : " + fullPath);
                File dir = new File(fullPath);
                if (!dir.exists())
                    dir.mkdir();
                for (int i = 0; i < assets.length; ++i) {
                    copyFileOrDir(path + "/" + assets[i]);
                }
            }
        } catch (IOException ex) {
            Log.i("INFO", "I/O Exception");
        }
    }
    private void copyFile(String filename) {
        AssetManager assetManager = this.getAssets();

        InputStream in = null;
        OutputStream out = null;
        try {
            in = assetManager.open(filename);
            String newFileName = "/data/data/" + this.getPackageName() + "/" + filename;
            Log.i("INFO","File Name: " + filename);
            out = new FileOutputStream(newFileName);

            byte[] buffer = new byte[1024];
            int read;
            while ((read = in.read(buffer)) != -1) {
                out.write(buffer, 0, read);
            }
            in.close();
            in = null;
            out.flush();
            out.close();
            out = null;
        } catch (Exception e) {
            Log.i("INFO", "Catch: " + e.getMessage());
        }