1 // Tencent is pleased to support the open source community by making ncnn available.
2 //
3 // Copyright (C) 2017 THL A29 Limited, a Tencent company. All rights reserved.
4 //
5 // Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
6 // in compliance with the License. You may obtain a copy of the License at
7 //
8 // https://opensource.org/licenses/BSD-3-Clause
9 //
10 // Unless required by applicable law or agreed to in writing, software distributed
11 // under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
12 // CONDITIONS OF ANY KIND, either express or implied. See the License for the
13 // specific language governing permissions and limitations under the License.
14 
15 #include "threshold.h"
16 
17 namespace ncnn {
18 
Threshold()19 Threshold::Threshold()
20 {
21     one_blob_only = true;
22     support_inplace = true;
23 }
24 
load_param(const ParamDict & pd)25 int Threshold::load_param(const ParamDict& pd)
26 {
27     threshold = pd.get(0, 0.f);
28 
29     return 0;
30 }
31 
forward_inplace(Mat & bottom_top_blob,const Option & opt) const32 int Threshold::forward_inplace(Mat& bottom_top_blob, const Option& opt) const
33 {
34     int w = bottom_top_blob.w;
35     int h = bottom_top_blob.h;
36     int channels = bottom_top_blob.c;
37     int size = w * h;
38 
39     #pragma omp parallel for num_threads(opt.num_threads)
40     for (int q = 0; q < channels; q++)
41     {
42         float* ptr = bottom_top_blob.channel(q);
43 
44         for (int i = 0; i < size; i++)
45         {
46             ptr[i] = ptr[i] > threshold ? 1.f : 0.f;
47         }
48     }
49 
50     return 0;
51 }
52 
53 } // namespace ncnn
54