Class ImageFolderDataset

Inheritance Relationships

Base Type

Class Documentation

class ImageFolderDataset : public mindspore::dataset::Dataset

A source dataset that reads images from a tree of directories.

Public Functions

ImageFolderDataset(const std::vector<char> &dataset_dir, bool decode, const std::shared_ptr<Sampler> &sampler, const std::set<std::vector<char>> &extensions, const std::map<std::vector<char>, int32_t> &class_indexing, const std::shared_ptr<DatasetCache> &cache)

Constructor of ImageFolderDataset.

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).

ImageFolderDataset(const std::vector<char> &dataset_dir, bool decode, const Sampler *sampler, const std::set<std::vector<char>> &extensions, const std::map<std::vector<char>, int32_t> &class_indexing, const std::shared_ptr<DatasetCache> &cache)

Constructor of ImageFolderDataset.

Parameters

  • dataset_dir – [in] Path to the root directory that contains the dataset.

  • decode – [in] A flag to decode in ImageFolder.

  • sampler – [in] Raw pointer to a sampler object used to choose samples from the dataset.

  • 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).

ImageFolderDataset(const std::vector<char> &dataset_dir, bool decode, const std::reference_wrapper<Sampler> sampler, const std::set<std::vector<char>> &extensions, const std::map<std::vector<char>, int32_t> &class_indexing, const std::shared_ptr<DatasetCache> &cache)

Constructor of ImageFolderDataset.

Parameters

  • dataset_dir – [in] Path to the root directory that contains the dataset.

  • decode – [in] A flag to decode in ImageFolder.

  • sampler – [in] Sampler object used to choose samples from the dataset.

  • 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).

~ImageFolderDataset() = default

Destructor of ImageFolderDataset.