If you set both width and height options, you can omit the func=crop option since it is the default operation for this case.
Specifies which part of the image you wish to keep while cropping. If you omit the gravity option, centred cropping is performed.
By default, Cloudimage crops the image centrally.
To position the crop, use the gravity operation. Here, gravity=west means that Cloudimage will focus on the left part of the image when cropping.
To focus a crop on the most prominent object on the image, you can use automatic crop.
Face crop looks for faces in the image and focuses on the most prominent one.