mindspore.dataset.vision.Posterize
- class mindspore.dataset.vision.Posterize(bits)[source]
Reduce the bit depth of the color channels of image to create a high contrast and vivid color effect, similar to that seen in posters or printed materials.
- Parameters
bits (int) – The number of bits to keep for each channel, should be in range of [0, 8].
- Raises
TypeError – If bits is not of type int.
ValueError – If bits is not in range [0, 8].
RuntimeError – If shape of the input image is not <H, W> or <H, W, C>.
Examples
>>> import mindspore.dataset as ds >>> import mindspore.dataset.vision as vision >>> >>> image_folder_dataset = ds.ImageFolderDataset("/path/to/image_folder_dataset_directory") >>> transforms_list = [vision.Decode(), vision.Posterize(4)] >>> image_folder_dataset = image_folder_dataset.map(operations=transforms_list, ... input_columns=["image"])
- Tutorial Examples: