The Crop API provides storage for all cropping solution. It is able to handle crops based on region and focal point concepts.
Examples of possible use cases:
- Storing a crop area (cropping approach) or a reference point (Focal point approach).
- Ability to handle different areas via an entity (Crop) and bundle (Crop Type) for storing different information linked to crop entities.
This is API module. In order to crop your images you need a UI module. First such (sandbox) module is Image widget crop.
Initial discussion can be found on manual crop issue queue.