// Copyright 2018 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at:
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import Foundation
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/// Parameters that determine the mapping of quantized values to real values. Quantized values can
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/// be mapped to float values using the following conversion:
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/// `realValue = scale * (quantizedValue - zeroPoint)`.
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public struct QuantizationParameters {
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/// Difference between real values corresponding to consecutive quantized values differing by 1.
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/// For example, the range of quantized values for `UInt8` data type is [0, 255].
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public let scale: Float
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/// Quantized value that corresponds to the real 0 value.
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public let zeroPoint: Int
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/// Creates a new quantization parameters instance.
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///
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/// - Parameters:
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/// - scale: Scale value for asymmetric quantization.
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/// - zeroPoint: Zero point for asymmetric quantization.
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init(scale: Float, zeroPoint: Int) {
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self.scale = scale
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self.zeroPoint = zeroPoint
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}
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}
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