o
    h                     @   sh   d dl Zd dlmZ d dlmZmZmZmZ d dl	m
Z
 ddlmZ G dd deZG d	d
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eZdS )    N)Path)AnyCallableOptionalUnion)Image   )VisionDatasetc                       s   e Zd ZdZ			ddeeef dedee dee dee ddf fd	d
Z	de
dejfddZde
dee fddZde
deeef fddZde
fddZ  ZS )CocoDetectionah  `MS Coco Detection <https://cocodataset.org/#detection-2016>`_ Dataset.

    It requires `pycocotools <https://github.com/ppwwyyxx/cocoapi>`_ to be installed,
    which could be installed via ``pip install pycocotools`` or ``conda install conda-forge::pycocotools``.

    Args:
        root (str or ``pathlib.Path``): Root directory where images are downloaded to.
        annFile (string): Path to json annotation file.
        transform (callable, optional): A function/transform that takes in a PIL image
            and returns a transformed version. E.g, ``transforms.PILToTensor``
        target_transform (callable, optional): A function/transform that takes in the
            target and transforms it.
        transforms (callable, optional): A function/transform that takes input sample and its target as entry
            and returns a transformed version.
    NrootannFile	transformtarget_transform
transformsreturnc                    sB   t  |||| ddlm} ||| _tt| jj | _	d S )Nr   )COCO)
super__init__Zpycocotools.cocor   cocolistsortedZimgskeysids)selfr   r   r   r   r   r   	__class__ _/home/www/facesmatcher.com/frenv_anti/lib/python3.10/site-packages/torchvision/datasets/coco.pyr      s   
zCocoDetection.__init__idc                 C   s0   | j |d d }ttj| j|dS )Nr   	file_nameRGB)	r   ZloadImgsr   openospathjoinr   convert)r   r   r#   r   r   r   _load_image)   s   zCocoDetection._load_imagec                 C   s   | j | j |S N)r   ZloadAnnsZ	getAnnIdsr   r   r   r   r   _load_target-   s   zCocoDetection._load_targetindexc                 C   s^   t |tstdt| d| j| }| |}| |}| jd ur+| ||\}}||fS )Nz#Index must be of type integer, got z	 instead.)
isinstanceint
ValueErrortyper   r&   r)   r   )r   r*   r   imagetargetr   r   r   __getitem__0   s   




zCocoDetection.__getitem__c                 C   s
   t | jS r'   )lenr   )r   r   r   r   __len__>   s   
zCocoDetection.__len__)NNN)__name__
__module____qualname____doc__r   strr   r   r   r   r,   r   r&   r   r   r)   tupler1   r3   __classcell__r   r   r   r   r
   
   s,    
r
   c                       s.   e Zd ZdZdedee f fddZ  ZS )CocoCaptionsa[  `MS Coco Captions <https://cocodataset.org/#captions-2015>`_ Dataset.

    It requires `pycocotools <https://github.com/ppwwyyxx/cocoapi>`_ to be installed,
    which could be installed via ``pip install pycocotools`` or ``conda install conda-forge::pycocotools``.

    Args:
        root (str or ``pathlib.Path``): Root directory where images are downloaded to.
        annFile (string): Path to json annotation file.
        transform (callable, optional): A function/transform that  takes in a PIL image
            and returns a transformed version. E.g, ``transforms.PILToTensor``
        target_transform (callable, optional): A function/transform that takes in the
            target and transforms it.
        transforms (callable, optional): A function/transform that takes input sample and its target as entry
            and returns a transformed version.

    Example:

        .. code:: python

            import torchvision.datasets as dset
            import torchvision.transforms as transforms
            cap = dset.CocoCaptions(root = 'dir where images are',
                                    annFile = 'json annotation file',
                                    transform=transforms.PILToTensor())

            print('Number of samples: ', len(cap))
            img, target = cap[3] # load 4th sample

            print("Image Size: ", img.size())
            print(target)

        Output: ::

            Number of samples: 82783
            Image Size: (3L, 427L, 640L)
            [u'A plane emitting smoke stream flying over a mountain.',
            u'A plane darts across a bright blue sky behind a mountain covered in snow',
            u'A plane leaves a contrail above the snowy mountain top.',
            u'A mountain that has a plane flying overheard in the distance.',
            u'A mountain view with a plume of smoke in the background']

    r   r   c                    s   dd t  |D S )Nc                 S   s   g | ]}|d  qS )captionr   ).0annr   r   r   
<listcomp>o   s    z-CocoCaptions._load_target.<locals>.<listcomp>)r   r)   r(   r   r   r   r)   n   s   zCocoCaptions._load_target)	r4   r5   r6   r7   r,   r   r8   r)   r:   r   r   r   r   r;   B   s    "+r;   )Zos.pathr"   pathlibr   typingr   r   r   r   ZPILr   Zvisionr	   r
   r;   r   r   r   r   <module>   s    8