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# Copyright (c) 2018-present, Royal Bank of Canada.
# All rights reserved.
# This source code is licensed under the license found in the
# LICENSE file in the root directory of this source tree.
from advertorch.functional import FloatToIntSqueezing
from .base import Processor
class BitSqueezing(Processor):
Bit Squeezing.
:param bit_depth: bit depth.
:param vmin: min value.
:param vmax: max value.
def __init__(self, bit_depth, vmin=0., vmax=1.):
super(BitSqueezing, self).__init__()
self.bit_depth = bit_depth
self.max_int = 2 ** self.bit_depth - 1
self.vmin = vmin
self.vmax = vmax
def forward(self, x):
return FloatToIntSqueezing.apply(
x, self.max_int, self.vmin, self.vmax)
class BinaryFilter(BitSqueezing):
Binary Filter.
:param vmin: min value.
:param vmax: max value.
def __init__(self, vmin=0., vmax=1.):
super(BinaryFilter, self).__init__(bit_depth=1, vmin=vmin, vmax=vmax)
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