Simple elastic augmentation for ND arrays.
Project description
augment
A simple elastic augmentation for ND arrays.
Installation
pip install augment-nd
Usage
import augment
import numpy as np
import math
# create some example data
image = np.zeros((100,500,500), dtype=np.float)
image[:] = 0.5
image[:,:10,:] = 0.75
image[:10,:10,:10] = 1
image[:,::10,:] = 1
image[:,:,::10] = 1
transformation = augment.create_identity_transformation(image.shape)
# jitter in 3D
transformation += augment.create_elastic_transformation(
image.shape,
num_control_points = [3,10,10],
jitter_sigma = [0.3, 10, 10])
# rotate around z axis
transformation += augment.create_rotation_transformation(
image.shape,
math.pi/4)
# apply transformation
image = augment.apply_transformation(image, transformation)
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