private class ConvertCMYK extends AsyncTask<Void, Void, String>
    {
        private String url;
        private Bitmap original;
        private ImageInfo info;
        private MagickImage imageCMYK;
        private File imageFile;
        private AQuery aq;

        public ConvertCMYK(String url, Bitmap original, AQuery aq)
        {
            this.url = url;
            this.original = original;
            this.aq = aq;
        }

        @Override
        protected void onPreExecute()
        {
            aq.id(R.id.progress).visible();
        }

        @Override
        protected String doInBackground(Void... params)
        {
            try
            {
                imageFile = aq.getCachedFile(url);

                info = new ImageInfo(imageFile.getAbsolutePath());
                imageCMYK = new MagickImage(info);

                if(imageCMYK.getColorspace() == ColorspaceType.CMYKColorspace)
                {
                    boolean imgConvertStatus = imageCMYK.transformRgbImage(ColorspaceType.CMYKColorspace);

                    if(imgConvertStatus)
                    {
                        imageCMYK.setFileName(imageFile.getAbsolutePath());
                        imageCMYK.writeImage(info);
                    }
                    else
                    {
                        throw new Exception();
                    }
                }
                else
                {
                    return null;
                }
            }
            catch(Exception e)
            {
                return null;
            }

            return "Executed";
        }

        @Override
        protected void onPostExecute(String result)
        {
            if(result != null)
                aq.id(R.id.photo).image(new File(imageFile.getAbsolutePath()), 350);
            else
                aq.id(R.id.photo).image(original, 0);

            aq.id(R.id.progress).gone();
        }