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//
// Copyright (C) 2017 THL A29 Limited, a Tencent company. All rights reserved.
//
// Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// https://opensource.org/licenses/BSD-3-Clause
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#ifndef LAYER_CROP_H
#define LAYER_CROP_H
#include "layer.h"
namespace ncnn {
class Crop : public Layer
{
public:
Crop();
virtual int load_param(const ParamDict& pd);
virtual int forward(const Mat& bottom_blob, Mat& top_blob, const Option& opt) const;
virtual int forward(const std::vector<Mat>& bottom_blobs, std::vector<Mat>& top_blobs, const Option& opt) const;
protected:
void resolve_crop_roi(const Mat& bottom_blob, int& woffset, int& hoffset, int& doffset, int& coffset, int& outw, int& outh, int& outd, int& outc) const;
void resolve_crop_roi(const Mat& bottom_blob, const Mat& reference_blob, int& woffset, int& hoffset, int& doffset, int& coffset, int& outw, int& outh, int& outd, int& outc) const;
void resolve_crop_roi(const Mat& bottom_blob, const int* param_data, int& woffset, int& hoffset, int& doffset, int& coffset, int& outw, int& outh, int& outd, int& outc) const;
public:
// -233 = dynamic offset from reference blob
int woffset;
int hoffset;
int doffset;
int coffset;
// -233 = remaining
int outw;
int outh;
int outd;
int outc;
// tail offset for cropping, ignored if reference blob is provided
// woffset is aka left, and woffset2 is aka right
int woffset2;
int hoffset2;
int doffset2;
int coffset2;
// numpy-style slice
// if provided, all the above attributes will be ignored
Mat starts;
Mat ends;
Mat axes;
};
} // namespace ncnn
#endif // LAYER_CROP_H
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