I am new to tilemill and trying to find out steps to display aerial photos as tiles in tilemill.

The aerial photos are saved as geotiff files and I tried to create a new layer using them as the datasource. Howerver, I have no luck that the geotiff images and the layer settings are displayed as shown below.

enter image description here enter image description here The questions I want as are follows:

  1. Would it be possible to show aerial phots as tiles in tilemill?
  2. If possible, what would be the basic flow or steps to achieve the goal?

I followed the basic guids available on the internet such as below already. http://tilemill-project.github.io/tilemill/docs/guides/reprojecting-geotiff/