Function mindspore::dataset::ImageFolder
Defined in File datasets.h
Function Documentation
Function to create an ImageFolderDataset.
Note
A source dataset that reads images from a tree of directories. All images within one folder have the same label. The generated dataset has two columns [“image”, “label”].
- Parameters
dataset_dir – [in] Path to the root directory that contains the dataset.
decode – [in] A flag to decode in ImageFolder.
sampler – [in] Shared pointer to a sampler object used to choose samples from the dataset. If sampler is not given, a
RandomSampler
will be used to randomly iterate the entire dataset (default = RandomSampler()).extensions – [in] File extensions to be read.
class_indexing – [in] a class name to label map.
cache – [in] Tensor cache to use (default=nullptr which means no cache is used).
- Returns
Shared pointer to the ImageFolderDataset.
Example/* Define dataset path and MindData object */ std::string dataset_path = "/path/to/image_directory"; std::shared_ptr<Dataset> ds = ImageFolder(dataset_path, true, std::make_shared<RandomSampler>(false, 10)); /* Create iterator to read dataset */ std::shared_ptr<Iterator> iter = ds->CreateIterator(); std::unordered_map<std::string, mindspore::MSTensor> row; iter->GetNextRow(&row); /* Note: In ImageFolder dataset, each data dictionary has keys "image" and "label" */ auto image = row["image"];