1 // Copyright 2018 Google Inc. All rights reserved.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at:
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #import <Foundation/Foundation.h>
16 
17 NS_ASSUME_NONNULL_BEGIN
18 
19 /**
20  * Parameters for asymmetric quantization. Quantized values can be converted to float values using:
21  * `realValue = scale * (quantizedValue - zeroPoint)`.
22  */
23 @interface TFLQuantizationParameters : NSObject
24 
25 /** Scale of asymmetric quantization. */
26 @property(nonatomic, readonly) float scale;
27 
28 /** Zero point of asymmetric quantization. */
29 @property(nonatomic, readonly) int32_t zeroPoint;
30 
31 /** Unavailable. */
32 - (instancetype)init NS_UNAVAILABLE;
33 
34 @end
35 
36 NS_ASSUME_NONNULL_END
37