o V ho"@sddlZddlZddlmZddlmZmZmZmZm Z m Z ddl m Z ddl mZmZddlmZGdd d eZGd d d eZdS) N)Path)AnyCallableListOptionalTupleUnion)Image)download_and_extract_archiveverify_str_arg) VisionDatasetc seZdZdZ    ddeeefdeeeefdee dee d e d df fd d Z d e d e eeffddZd e fddZd e fddZdddZd efddZZS) Caltech101a?`Caltech 101 `_ Dataset. .. warning:: This class needs `scipy `_ to load target files from `.mat` format. Args: root (str or ``pathlib.Path``): Root directory of dataset where directory ``caltech101`` exists or will be saved to if download is set to True. target_type (string or list, optional): Type of target to use, ``category`` or ``annotation``. Can also be a list to output a tuple with all specified target types. ``category`` represents the target class, and ``annotation`` is a list of points from a hand-generated outline. Defaults to ``category``. transform (callable, optional): A function/transform that takes in a PIL image and returns a transformed version. E.g, ``transforms.RandomCrop`` target_transform (callable, optional): A function/transform that takes in the target and transforms it. download (bool, optional): If true, downloads the dataset from the internet and puts it in root directory. If dataset is already downloaded, it is not downloaded again. .. warning:: To download the dataset `gdown `_ is required. categoryNFroot target_type transformtarget_transformdownloadreturnc s tjtj|d||dtj|jddt|tr|g}dd|D|_ |r,| | s4t dt ttj|jd|_|jd d d d d dttfdd|j|_g|_g|_t|jD]&\}}tttj|jd|}|jtd|d|j||gqgdS)N caltech101rrTexist_okcSsg|]}t|ddqS)r)r annotation)r ).0trP/var/www/vscode/kcb/lib/python3.10/site-packages/torchvision/datasets/caltech.py 4sz'Caltech101.__init__..HDataset not found or corrupted. You can use download=True to download it101_ObjectCategoriesBACKGROUND_GoogleFaces_2Faces_3 Motorbikes_16Airplanes_Side_2)Faces Faces_easy Motorbikes airplanescs|vr|S|SNr)xname_maprrHsz%Caltech101.__init__..r )super__init__ospathjoinmakedirsr isinstancestrrr_check_integrity RuntimeErrorsortedlistdir categoriesremovelistmapannotation_categoriesindexy enumeratelenextendrange) selfrrrrricn __class__r-rr1(s0  zCaltech101.__init__rAc Csddl}ttj|jd|j|j|d|j |dd}g}|j D]6}|dkr3| |j|q$|dkrZ|j tj|jd |j|j|d |j |dd }| |d q$t|d kret|n|d}|jdurs||}|jdur}||}||fS)z Args: index (int): Index Returns: tuple: (image, target) where the type of target specified by target_type. rNr!image_04d.jpgrr Annotations annotation_z.mat obj_contourr )scipy.ior openr2r3r4rr<rBrArappendioloadmatr@rDtuplerr)rGrAscipyimgtargetrdatarrr __getitem__Qs<     zCaltech101.__getitem__cCtjtj|jdS)Nr!r2r3existsr4rrGrrrr8|zCaltech101._check_integritycC t|jSr+rDrArarrr__len__ zCaltech101.__len__cCs4|rdStd|jdddtd|jddddS)NzAhttps://drive.google.com/file/d/137RyRjvTBkBiIfeYBNZBtViDHQ6_Ewspz101_ObjectCategories.tar.gz b224c7392d521a49829488ab0f1120d9filenamemd5zAhttps://drive.google.com/file/d/175kQy3UsZ0wUEHZjqkUDdNVssr7bgh_mzAnnotations.tar 6f83eeb1f24d99cab4eb377263132c91r8r rrarrrrs zCaltech101.downloadcCsdjdi|jS)NzTarget type: {target_type}r)format__dict__rarrr extra_reprszCaltech101.extra_repr)rNNFrN)__name__ __module__ __qualname____doc__rr7rrrrboolr1intrrr]r8rerro __classcell__rrrKrr s0 )+ rc seZdZdZ   ddedeedeededdf fd d Zd e de e e ffd d Z defddZ de fddZdddZZS) Caltech256a`Caltech 256 `_ Dataset. Args: root (str or ``pathlib.Path``): Root directory of dataset where directory ``caltech256`` exists or will be saved to if download is set to True. transform (callable, optional): A function/transform that takes in a PIL image and returns a transformed version. E.g, ``transforms.RandomCrop`` target_transform (callable, optional): A function/transform that takes in the target and transforms it. download (bool, optional): If true, downloads the dataset from the internet and puts it in root directory. If dataset is already downloaded, it is not downloaded again. NFrrrrrc stjtj|d||dtj|jdd|r||s$t dt t tj|jd|_ g|_ g|_t|j D]+\}}tddt tj|jd|D}|j td |d |j||gq=dS) N caltech256rTrr 256_ObjectCategoriescSsg|] }|dr|qS)rO)endswith)ritemrrrrs z'Caltech256.__init__..r )r0r1r2r3r4r5rrr8r9r:r;r<rArBrCrDrErF)rGrrrrrHrIrJrKrrr1s$zCaltech256.__init__rAc Csttj|jd|j|j||j|ddd|j|dd}|j|}|j dur2| |}|j dur<| |}||fS)z Args: index (int): Index Returns: tuple: (image, target) where target is index of the target class. rzr 03d_rNrON) r rTr2r3r4rr<rBrArr)rGrArZr[rrrr]s"    zCaltech256.__getitem__cCr^)Nrzr_rarrrr8rbzCaltech256._check_integritycCrcr+rdrarrrrerfzCaltech256.__len__cCs"|rdStd|jddddS)NzAhttps://drive.google.com/file/d/1r6o0pSROcV1_VwT4oSjA2FBUSCWGuxLKz256_ObjectCategories.tar 67b4f42ca05d46448c6bb8ecd2220f6drhrlrarrrrs zCaltech256.download)NNFrp)rqrrrsrtr7rrrur1rvrrr]r8rerrwrrrKrrxs(rx)r2os.pathpathlibrtypingrrrrrrPILr utilsr r visionr rrxrrrrs