Available Transforms#

Preprocessing#

crop#

Crop a rectangular region from image.

Parameters:

name	required	type
xMin	True	int
yMin	True	int
xMax	True	int
yMax	True	int

rescaleWithPadding#

Rescales the input image to fit into a rectangle of size height x width while maintaining aspect ratio and padding the rest of the rectangle with a constant value.

Parameters:

name	required	type	default	minimum	maximum
height	True	int		1
width	True	int		1
paddingValue	False	int	0	0	255

resize#

Resize image.

Parameters:

name	required	type	default	minimum	maximum
height	True	int		1
width	True	int		1

Augmentations#

blur#

Blurs images on a scale from 3 to 100

Parameters:

name	required	type	default	minimum	maximum
lowerLimit	False	int	3	3	100
upperLimit	False	int	7	5	100
p	False	float	0.5	0	1
alwaysApply	False	bool	False

gaussianBlur#

Makes the entire image look like it's out of focus. Blurred using a Gaussian filter to remove outlier pixels that may be noise in an image.

Parameters:

name	required	type	default	minimum	maximum
lowerLimit	False	int	3	3	100
upperLimit	False	int	7	5	100
p	False	float	0.5	0	1

horizontalFlip#

Flip images horizontally, i.e., mirror the image.

Parameters:

name	required	type	default	minimum	maximum
p	False	float	0.5	0	1

hueSaturationValue#

Randomly change hue, saturation and value of the input image.

Parameters:

name	required	type	default	minimum	maximum
hueShiftLowerLimit	False	int	-20	-255	255
hueShiftUpperLimit	False	int	20	-255	255
satShiftLowerLimit	False	int	-30	-255	255
satShiftUpperLimit	False	int	30	-255	255
valShiftLowerLimit	False	int	-20	-255	255
valShiftUpperLimit	False	int	20	-255	255
p	False	float	0.5	0	1

motionBlur#

Makes the image look like the subject or camera is in motion.

Parameters:

name	required	type	default	minimum	maximum
lowerLimit	False	int	3	3	100
upperLimit	False	int	7	5	100
p	False	float	0.5	0	1

randAugment#

Applies a random list of augmentations to each image. This augmentation policy has been known to make the models generalize better.

Parameters:

name	required	type	default	minimum	maximum
numberTransforms	False	int	1	1	10
magnitude	False	float	4	0	10
p	False	float	1	0	1
alwaysApply	False	bool	False

randomBrightness#

Randomly change image brightness up or down.

Parameters:

name	required	type	default	minimum	maximum
lowerLimit	False	float	-0.2	-1	1
upperLimit	False	float	0.2	-1	1
p	False	float	0.5	0	1
alwaysApply	False	bool	0

randomContrast#

Randomly change image contrast up or down.

Parameters:

name	required	type	default	minimum	maximum
lowerLimit	False	float	-0.2	-1	1
upperLimit	False	float	0.2	-1	1
p	False	float	0.5	0	1
alwaysApply	False	bool	0

randomRotate90#

Randomly rotates images as well as their annotations 90 degrees clockwise or counterclockwise.

Parameters:

name	required	type	default	minimum	maximum
p	False	float	0.5	0	1

verticalFlip#

Flip images vertically.

Parameters:

name	required	type	default	minimum	maximum
p	False	float	0.5	0	1