Contrast

class mmpretrain.datasets.transforms.Contrast(magnitude=None, prob=0.5, random_negative_prob=0.5, **kwargs)

Adjust images contrast.

Parameters:

• magnitude (int | float | None) – The magnitude used for adjusting contrast. A positive magnitude would enhance the contrast and a negative magnitude would make the image grayer. A magnitude=0 gives the origin img. If None, generate from magnitude_range, see BaseAugTransform. Defaults to None.

• prob (float) – The probability for performing contrast adjusting therefore should be in range [0, 1]. Defaults to 0.5.

• random_negative_prob (float) – The probability that turns the magnitude negative, which should be in range [0,1]. Defaults to 0.5.

transform(results)

Apply transform to results.