Extract image dimensions by parsing its filename.
- name
- width
- height
- scale
-<width>
- image-100.png-<width>x
- image-100x.png-<width>x<height>
- image-100x200.png-x<height>
- image-x200.png-<width>x<height>@<scale>x
- image-100x200@2x.png@<scale>x
- image@2x.png
MIT