title: Image grayscale using glide library
body: <p>I am using glide library to load image url in image view.</p>
  
  <pre><code>Glide.with(context)
                  .load(imageurl)
                  .apply(RequestOptions.circleCropTransform())
                  .into(holder.thumbnail);
  </code></pre>
  
  <p>Actually, the image is loaded fine with rounded image.</p>
  
  <p>I need the image to be loaded with rounded + <strong>grayscale</strong> image</p>
  
  <p>Can this be done by using glide lib?</p>