mindspore.dataset.vision.AdjustContrast
- class mindspore.dataset.vision.AdjustContrast(contrast_factor)[source]
Adjust the contrast of the input image.
- Parameters
contrast_factor (float) – How much to adjust the contrast, must be non negative. 0 gives a solid gray image, 1 gives the original image, while 2 increases the contrast by a factor of 2.
- Raises
TypeError – If contrast_factor is not of type float.
ValueError – If contrast_factor is less than 0.
RuntimeError – If shape of the input image is not <H, W, C>.
- Supported Platforms:
CPU
Examples
>>> transforms_list = [vision.Decode(), vision.AdjustContrast(contrast_factor=2.0)] >>> image_folder_dataset = image_folder_dataset.map(operations=transforms_list, ... input_columns=["image"])