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Source code for mmcls.models.utils.make_divisible
# Copyright (c) OpenMMLab. All rights reserved.[docs]def make_divisible(value, divisor, min_value=None, min_ratio=0.9): """Make divisible function. This function rounds the channel number down to the nearest value that can be divisible by the divisor. Args: value (int): The original channel number. divisor (int): The divisor to fully divide the channel number. min_value (int, optional): The minimum value of the output channel. Default: None, means that the minimum value equal to the divisor. min_ratio (float): The minimum ratio of the rounded channel number to the original channel number. Default: 0.9. Returns: int: The modified output channel number """ if min_value is None: min_value = divisor new_value = max(min_value, int(value + divisor / 2) // divisor * divisor) # Make sure that round down does not go down by more than (1-min_ratio). if new_value < min_ratio * value: new_value += divisor return new_value