o
V hH @ s d dl Z d dlmZmZ d dlmZ d dlmZmZm Z m
Z
m Z m Z m
Z
d dlZd dlmZ ddlmZmZmZmZ ddlmZ G d d
d
eZdS ) N)abspath
expanduser)Path)AnyCallableDictListOptionalTupleUnion)Image ) download_and_extract_archive download_file_from_google_driveextract_archiveverify_str_arg)
VisionDatasetc
s e Zd ZdZdZg dZdZ d deee f d ed
e
e d e
e d e d
df fdd
Z
ded
eeef fddZd
efddZd
efddZd ddZd ddZd
e fdd Zd d d Z ZS )! WIDERFaceuu `WIDERFace `_ Dataset.
Args:
root (str or ``pathlib.Path``): Root directory where images and annotations are downloaded to.
Expects the following folder structure if download=False:
.. code::
└── widerface
├── wider_face_split ('wider_face_split.zip' if compressed)
├── WIDER_train ('WIDER_train.zip' if compressed)
├── WIDER_val ('WIDER_val.zip' if compressed)
└── WIDER_test ('WIDER_test.zip' if compressed)
split (string): The dataset split to use. One of {``train``, ``val``, ``test``}.
Defaults to ``train``.
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.
widerface))!15hGDLhsx8bLgLcIRD5DhYt5iBxnjNF1M 3fedf70df600953d25982bcd13d91ba2zWIDER_train.zip)!1GUCogbp16PMGa39thoMMeWxp7Rp5oM8Q dfa7d7e790efa35df3788964cf0bbaeaz
WIDER_val.zip)!1HIfDbVEWKmsYKJZm4lchTBDLW5N7dY5T e5d8f4248ed24c334bbd12f49c29dd40zWIDER_test.zip)zLhttp://shuoyang1213.me/WIDERFACE/support/bbx_annotation/wider_face_split.zip 0e3767bcf0e326556d407bf5bff5d27czwider_face_split.ziptrainNFrootsplit transformtarget_transformdownloadreturnc sp t jtj|| j||d t|dd| _|r | | s$t
dg | _ | jdv r2| d S |
d S )N)r r r r )r valtestzTDataset not found or corrupted. You can use download=True to download and prepare it)r r# )super__init__ospathjoin BASE_FOLDERr r r! _check_integrity RuntimeErrorimg_info parse_train_val_annotations_fileparse_test_annotations_file)selfr r r r r! __class__ R/var/www/vscode/kcb/lib/python3.10/site-packages/torchvision/datasets/widerface.pyr& : s
zWIDERFace.__init__indexc C s` t | j| d }| jdur| |}| jdkrdn| j| d }| jdur,| |}||fS )z
Args:
index (int): Index
Returns:
tuple: (image, target) where target is a dict of annotations for all faces in the image.
target=None for the test split.
img_pathNr$ annotations)r openr- r r r )r0 r5 imgtargetr3 r3 r4 __getitem__T s
zWIDERFace.__getitem__c C s
t | jS )N)lenr- )r0 r3 r3 r4 __len__j s
zWIDERFace.__len__c C s dg}d |jdi | jS )NzSplit: {split}
r3 )r) format__dict__)r0 linesr3 r3 r4
extra_reprm s zWIDERFace.extra_reprc C s | j dkrdnd}tj| jd|}t|}| }d\}}}d\}} g }
|D ]} | } |rHtj| jd| j d| } tt | } d }d
}q(|rSt
| }d }d
}q(|r| d 7 } | d }
d
d |
D }|
| | |krd }d
}t
|
}| j | |d d ddf |d d df |d d df |d d df |d d df |d d df |d d df dd d} |
q(td| W d d S 1 sw Y d S )Nr zwider_face_train_bbx_gt.txtzwider_face_val_bbx_gt.txtwider_face_split)TFF)r r WIDER_imagesFTr
c S s g | ]}t |qS r3 )int).0xr3 r3 r4
s z>WIDERFace.parse_train_val_annotations_file..r )bboxblur
expression illumination occlusionposeinvalid)r6 r7 z Error parsing annotation file )r r' r( r) r r8 readlinesrstripr r rG appendtorchtensorr- cloneclearr, )r0 filenamefilepathfrA file_name_linenum_boxes_linebox_annotation_line num_boxes box_counterlabelsliner6
line_split line_values
labels_tensorr3 r3 r4 r. q sZ
"z*WIDERFace.parse_train_val_annotations_filec C s t j| jdd}tt|}t|.}| }|D ] }| }t j| jdd|}tt|}| j
d|i qW d d S 1 sDw Y d S )NrC z wider_face_test_filelist.txt
WIDER_testrE r6 ) r' r( r) r r r r8 rX rY r- rZ )r0 r` ra rA rh r6 r3 r3 r4 r/ s
"z%WIDERFace.parse_test_annotations_filec C s\ | j }|| j |D ] \}}}tj|\}}tj| j|}tj |s+ dS q
dS )NFT)
FILE_LISTcopyrZ ANNOTATIONS_FILEr' r( splitextr) r exists)r0 all_files_md5r_ fileext
extracted_dirr3 r3 r4 r+ s
zWIDERFace._check_integrityc C sf | rd S | jD ]\}}}t|| j|| tj| j|}t| q t| j d | j| j d d d S )Nr r
)url
download_rootrt )
r+ rm r r r' r( r) r r ro )r0 file_idrt r_ r` r3 r3 r4 r! s
zWIDERFace.download)r NNF)r" N)__name__
__module__ __qualname____doc__r* rm ro r strr r r boolr& rG r
r r; r= rB r. r/ r+ r!
__classcell__r3 r3 r1 r4 r s:
0 r )r' os.pathr r pathlibr typingr r r r r r
r r[ PILr utilsr r r r visionr r r3 r3 r3 r4 s $