mindspore.dataset.vision.c_transforms.AutoContrast

class mindspore.dataset.vision.c_transforms.AutoContrast(cutoff=0.0, ignore=None)[source]

Apply automatic contrast on input image.

Parameters

cutoff (float, optional) – Percent of pixels to cut off from the histogram, the value must be in the range [0.0, 50.0) (default=0.0).
ignore (Union[int, sequence], optional) – Pixel values to ignore (default=None).

Examples

>>> transforms_list = [c_vision.Decode(), c_vision.AutoContrast(cutoff=10.0, ignore=[10, 20])]
>>> image_folder_dataset = image_folder_dataset.map(operations=transforms_list,
...                                                 input_columns=["image"])