Vectorizable¶
- class menpo.base.Vectorizable[source]¶
Bases: object
Flattening of rich objects to vectors and rebuilding them back.
Interface that provides methods for ‘flattening’ an object into a vector, and restoring from the same vectorized form. Useful for statistical analysis of objects, which commonly requires the data to be provided as a single vector.
- as_vector(**kwargs)[source]¶
Returns a flattened representation of the object as a single vector.
Returns: vector : (N,) ndarray
The core representation of the object, flattened into a single vector. Note that this is always a view back on to the original object, but is not writable.
- from_vector(vector)[source]¶
Build a new instance of the object from it’s vectorized state.
self is used to fill out the missing state required to rebuild a full object from it’s standardized flattened state. This is the default implementation, which is which is a deepcopy of the object followed by a call to from_vector_inplace(). This method can be overridden for a performance benefit if desired.
Parameters: vector : (n_parameters,) ndarray
Flattened representation of the object.
Returns: object : type(self)
An new instance of this class.