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augmentations.py
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augmentations.py
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from albumentations import (
HorizontalFlip, VerticalFlip, ShiftScaleRotate, CLAHE, RandomRotate90,
Transpose, Blur, OpticalDistortion, GridDistortion, HueSaturationValue,
IAAAdditiveGaussianNoise, GaussNoise, MotionBlur, MedianBlur, Blur, RandomBrightnessContrast, IAAPiecewiseAffine, Flip, OneOf, Compose, RandomGamma,
)
class LightAug:
def __init__(self, p=0.8):
self.p = p
def __call__(self, x):
return Compose([HorizontalFlip(),
VerticalFlip(),
Transpose(),
RandomRotate90(),
ShiftScaleRotate(shift_limit=0.0625, scale_limit=0.2, rotate_limit=45, p=0.2),
], p=self.p)(image=x)['image']
class MediumAug:
def __init__(self, p=0.8):
self.p = p
def __call__(self, x):
return Compose([
HorizontalFlip(),
VerticalFlip(),
Transpose(),
RandomRotate90(),
ShiftScaleRotate(shift_limit=0.0625, scale_limit=0.2, rotate_limit=20, p=0.3),
OneOf([
MotionBlur(p=.2),
MedianBlur(blur_limit=3, p=0.1),
Blur(blur_limit=3, p=0.1),
], p=0.2),
], p=self.p)(image=x)['image']
class MediumAugFixed:
def __init__(self, p=0.6):
self.p = p
self.augmentation = Compose([
Transpose(),
ShiftScaleRotate(shift_limit=0.06, scale_limit=0.1, rotate_limit=10, p=0.3),
OneOf([
MotionBlur(p=.2),
# MedianBlur(blur_limit=3, p=0.1),
Blur(blur_limit=3, p=0.1),
], p=0.2),
], p=self.p)
def __call__(self, x):
return self.augmentation(image=x)['image']
class SafeAug:
def __init__(self, p=0.6):
self.p = p
self.augmentation = Compose([
HorizontalFlip(),
Transpose(),
ShiftScaleRotate(shift_limit=0.06, scale_limit=0.1, rotate_limit=5, p=0.3),
# RandomBrightnessContrast(brightness_limit=0.1, contrast_limit=0.1, p=0.3),
], p=self.p)
def __call__(self, x):
return self.augmentation(image=x)['image']
class StrongAugFixed:
def __init__(self, p=0.6):
self.p = p
def __call__(self, x):
return Compose([
Transpose(),
ShiftScaleRotate(shift_limit=0.0, scale_limit=0.2, rotate_limit=5, p=0.3),
OneOf([
MotionBlur(p=.2),
MedianBlur(blur_limit=3, p=0.1),
Blur(blur_limit=3, p=0.1),
], p=0.2),
OneOf([
RandomBrightnessContrast(),
RandomGamma(),
CLAHE(),
HueSaturationValue(p=0.3),
])
], p=self.p)(image=x)['image']
class StrongAug:
def __init__(self, p=0.8):
self.p = p
def __call__(self, x):
return Compose([
HorizontalFlip(),
VerticalFlip(),
Transpose(),
RandomRotate90(),
ShiftScaleRotate(shift_limit=0.0625, scale_limit=0.2, rotate_limit=45, p=0.2),
OneOf([
MotionBlur(p=.2),
MedianBlur(blur_limit=3, p=0.1),
Blur(blur_limit=3, p=0.1),
], p=0.2),
OneOf([
RandomBrightnessContrast(),
RandomGamma(),
CLAHE(),
HueSaturationValue(p=0.3),
])
], p=self.p)(image=x)['image']