Distorts an image using various distortion methods, by mapping color
lookups of the source image to a new destination image usally of the same
size as the source image, unless 'bestfit' is set to TRUE.
If 'bestfit' is enabled, and distortion allows it, the destination image
is adjusted to ensure the whole source 'image' will just fit within the
final destination image, which will be sized and offset accordingly. Also
in many cases the virtual offset of the source image will be taken into
account in the mapping.
This functionality is present if Imagick is compiled against ImageMagick
6.3.6 or later.