mindspore.dataset.Dataset.num_classes
- Dataset.num_classes()[source]
Get the number of classes in a dataset.
- Returns
int, number of classes.
Examples
>>> import mindspore.dataset as ds >>> # Read image files >>> image_folder_dataset_dir = "/path/to/image_folder_dataset_directory" >>> dataset = ds.ImageFolderDataset(dataset_dir=image_folder_dataset_dir) >>> # Check how many classes exist in image folder >>> num_classes = dataset.num_classes()