import numpy as np

def normalize_by_resolution(data):
    pass

def mask_by_visibility(data):
    pass

def pad_zero(data, size):
    pass

def random_crop(data, size):
    pass

def transpose(data, order):
    pass

def to_tuple(data, keys = ['data', 'category_id']):
    pass

import numpy as np

def normalize_by_resolution(data):
    pass

def mask_by_visibility(data):
    pass

def pad_zero(data, size):
    pass

def random_crop(data, size):
    pass

def transpose(data, order):
    pass

def to_tuple(data, keys = ['data', 'category_id']):
    pass
