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                from fuel.datasets import H5PYDataset  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                from fuel.transformers.defaults import uint8_pixels_to_floatX  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                from fuel.utils import find_in_data_path  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class CelebA(H5PYDataset):  | 
            
            
                                                        
            
                                    
            
            
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                    """The CelebFaces Attributes Dataset (CelebA) dataset.  | 
            
            
                                                        
            
                                    
            
            
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                    CelebA is a large-scale face  | 
            
            
                                                        
            
                                    
            
            
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                    attributes dataset with more than 200K celebrity images, each  | 
            
            
                                                        
            
                                    
            
            
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                    with 40 attribute annotations. The images in this dataset cover  | 
            
            
                                                        
            
                                    
            
            
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                    large pose variations and background clutter. CelebA has large  | 
            
            
                                                        
            
                                    
            
            
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                    diversities, large quantities, and rich annotations, including:  | 
            
            
                                                        
            
                                    
            
            
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                    * 10,177 number of identities  | 
            
            
                                                        
            
                                    
            
            
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                    * 202,599 number of face images  | 
            
            
                                                        
            
                                    
            
            
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                    * 5 landmark locations per image  | 
            
            
                                                        
            
                                    
            
            
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                    * 40 binary attributes annotations per image.  | 
            
            
                                                        
            
                                    
            
            
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                    The dataset can be employed as the training and test sets for  | 
            
            
                                                        
            
                                    
            
            
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                    the following computer vision tasks:  | 
            
            
                                                        
            
                                    
            
            
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                    * face attribute recognition  | 
            
            
                                                        
            
                                    
            
            
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                    * face detection  | 
            
            
                                                        
            
                                    
            
            
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                    * landmark (or facial part) localization  | 
            
            
                                                        
            
                                    
            
            
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                    Parameters  | 
            
            
                                                        
            
                                    
            
            
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                    ----------  | 
            
            
                                                        
            
                                    
            
            
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                    which_format : {'aligned_cropped, '64'} | 
            
            
                                                        
            
                                    
            
            
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                        Either the aligned and cropped version of CelebA, or  | 
            
            
                                                        
            
                                    
            
            
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                        a 64x64 version of it.  | 
            
            
                                                        
            
                                    
            
            
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                    which_sets : tuple of str  | 
            
            
                                                        
            
                                    
            
            
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                        Which split to load. Valid values are 'train', 'valid' and  | 
            
            
                                                        
            
                                    
            
            
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                        'test' corresponding to the training set (162,770 examples), the  | 
            
            
                                                        
            
                                    
            
            
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                        validation set (19,867 examples) and the test set (19,962  | 
            
            
                                                        
            
                                    
            
            
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                        examples).  | 
            
            
                                                        
            
                                    
            
            
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                    """  | 
            
            
                                                        
            
                                    
            
            
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                    _filename = 'celeba_{}.hdf5' | 
            
            
                                                        
            
                                    
            
            
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                    default_transformers = uint8_pixels_to_floatX(('features',)) | 
            
            
                                                        
            
                                    
            
            
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                    def __init__(self, which_format, which_sets, **kwargs):  | 
            
            
                                                        
            
                                    
            
            
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                        self.which_format = which_format  | 
            
            
                                                        
            
                                    
            
            
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                        super(CelebA, self).__init__(  | 
            
            
                                                        
            
                                    
            
            
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                            file_or_path=find_in_data_path(self.filename),  | 
            
            
                                                        
            
                                    
            
            
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                            which_sets=which_sets, **kwargs)  | 
            
            
                                                        
            
                                    
            
            
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                    @property  | 
            
            
                                                        
            
                                    
            
            
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                    def filename(self):  | 
            
            
                                                        
            
                                    
            
            
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                        return self._filename.format(self.which_format)  | 
            
            
                                                        
            
                                    
            
            
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