augmenter.py

from imgaug import augmenters as iaa

augmenter = iaa.SomeOf((0, None),
                       [
                           iaa.Fliplr(0.5),
                           iaa.Crop(percent=([0.05, 0.1], [0.05, 0.1], [0.05, 0.1], [0.05, 0.1])),
                           iaa.PerspectiveTransform(scale=(0.01, 0.05), keep_size=True),
                           iaa.Affine(rotate=(-30, 30)),
                           iaa.Affine(translate_percent={"x": (-0.15, 0.15), "y": (-0.15, 0.15)}),
                           iaa.Affine(shear=(-32, 32)),
                           iaa.Affine(scale={"x": (0.9, 1.2), "y": (0.9, 1.2)}),
                           iaa.GammaContrast((0.5, 2.0)),
                           iaa.SigmoidContrast(gain=(3, 10), cutoff=(0.4, 0.6))
                       ],
                       random_order=True,
                       )