o
    Ni                      @   s   d Z ddlmZ ddlmZ ddlmZ ddlZddlmZ ddl	m
  mZ ddlmZ ddlmZ dZd	Zd
ZdZdZdZG dd dejjZdS )zBinarizedMNIST.    )absolute_import)division)print_functionN)urllib)mnista#  @inproceedings{salakhutdinov2008quantitative,
title={On the quantitative analysis of deep belief networks},
author={Salakhutdinov, Ruslan and Murray, Iain},
booktitle={Proceedings of the 25th international conference on Machine learning},
pages={872--879},
year={2008},
organization={ACM}
}
zA specific binarization of the MNIST images originally used in
(Salakhutdinov & Murray, 2008). This dataset is frequently used to evaluate
generative models of images, so labels are not provided.
zDhttp://www.cs.toronto.edu/~larocheh/public/datasets/binarized_mnist/zbinarized_mnist_train.amatzbinarized_mnist_valid.amatzbinarized_mnist_test.amatc                   @   s4   e Zd ZdZejdZdd Zdd Z	dd Z
d	S )
BinarizedMNISTz-A specific binarization of the MNIST dataset.z1.0.0c              	   C   s.   t jj| tt jdt jjtjdidt	dS )Nimage)shapezRhttp://www.dmi.usherb.ca/~larocheh/mlpython/_modules/datasets/binarized_mnist.html)builderdescriptionfeatureshomepagecitation)
tfdscoreDatasetInfo_DESCRIPTIONr   FeaturesDictImager   MNIST_IMAGE_SHAPE	_CITATION)self r   ]/home/ubuntu/.local/lib/python3.10/site-packages/tensorflow_datasets/image/binarized_mnist.py_info9   s   zBinarizedMNIST._infoc                 C   s|   t ttd}|dd | D }tjjtjj	t
|d ddtjjtjjt
|d ddtjjtjjt
|d ddgS )	zReturns SplitGenerators.)
train_datavalidation_data	test_datac                 S   s    i | ]\}}|t jt|qS r   )r   parseurljoin_URL).0kvr   r   r   
<dictcomp>M   s     z4BinarizedMNIST._split_generators.<locals>.<dictcomp>r   )	data_path)name
gen_kwargsr   r   )_TRAIN_DATA_FILENAME_VALID_DATA_FILENAME_TEST_DATA_FILENAMEdownloaditemsr   r   SplitGeneratorSplitTRAINdict
VALIDATIONTEST)r   
dl_manager	filenamesfilesr   r   r   _split_generatorsE   s4   z BinarizedMNIST._split_generatorsc                 c   st    t jj|d}tj|dtjddtj	 }W d   n1 s#w   Y  t
|D ]\}}|d|ifV  q,dS )zGenerate Binarized MNIST examples as dicts.

    Args:
      data_path (str): Path to the data files

    Yields:
      Generator yielding the next examples
    rb )	delimiterdtype)Nr   )tfiogfileGFilenploadtxtuint8reshaper   r   	enumerate)r   r%   fimagesindexr   r   r   r   _generate_examplesa   s   	z!BinarizedMNIST._generate_examplesN)__name__
__module____qualname____doc__r   r   VersionVERSIONr   r6   rH   r   r   r   r   r   4   s    r   )rL   
__future__r   r   r   numpyr@   	six.movesr   tensorflow.compat.v2compatv2r<   (tensorflow_datasets.image_classificationr   tensorflow_datasets.public_api
public_apir   r   r   r    r(   r)   r*   r   GeneratorBasedBuilderr   r   r   r   r   <module>   s    