pychubby.reference module¶

Module focused on creation of reference spaces.

class pychubby.reference.DefaultRS¶

Bases: pychubby.reference.ReferenceSpace

Default reference space.

tform¶

Affine transformation.

Type:	skimage.transform.GeometricTransform

keypoints¶

Defining landmarks used for estimating the parameters of the model.

Type:	dict

estimate(lf)¶

Estimate parameters of the affine transformation.

Parameters:	lf (pychubby.detect.LandmarFace) – Instance of the `LandmarkFace`.

inp2ref(coords)¶

Transform from input to reference space.

Parameters:	coords (np.ndarray) – Array of shape (N, 2) where the columns represent x and y coordinates in the input space.
Returns:	tformed_coords – Array of shape (N, 2) where the columns represent x and y coordinates in the reference space correspoding row-wise to coords.
Return type:	np.ndarray

ref2inp(coords)¶

Transform from reference to input space.

Parameters:	coords (np.ndarray) – Array of shape (N, 2) where the columns represent x and y reference coordinates.
Returns:	tformed_coords – Array of shape (N, 2) where the columns represent x and y coordinates in the input image correspoding row-wise to coords.
Return type:	np.ndarray

class pychubby.reference.ReferenceSpace¶

Bases: abc.ABC

Abstract class for reference spaces.