CB

The Image library in CB should basically mirror standard image processing library functionality (e.g. Imagine or Intervention/Image) then call the dependency and behave the same regardless of library to avoid being dependent on a singular image processing library. Something like the below is probably correct.

/Image/Handler/Imagine.php (bridge between Imagine and Image.pgp)
/Image/Image.php (does actual image processing)
/Image/Test.php (tests for compatibility)