mirror of
https://github.com/PaddlePaddle/FastDeploy.git
synced 2025-10-06 00:57:33 +08:00
a36d49a973
* [Backend] fix lite backend save model error * [Backend] fixed typos * [FlyCV] optimize the integration of FlyCV * [cmake] close some tests options * [cmake] close some test option * [FlyCV] remove un-need warnings * [FlyCV] remove un-need GetMat method * [FlyCV] optimize FlyCV codes * [cmake] remove un-need cmake function in examples/CMakelists * [cmake] support gflags for Android
62 lines
2.3 KiB
C++
62 lines
2.3 KiB
C++
// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// 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.
|
|
|
|
#include "fastdeploy/vision/utils/utils.h"
|
|
|
|
namespace fastdeploy {
|
|
namespace vision {
|
|
namespace utils {
|
|
|
|
bool CropImageByBox(Mat& src_im, Mat* dst_im,
|
|
const std::vector<float>& box, std::vector<float>* center,
|
|
std::vector<float>* scale, const float expandratio) {
|
|
const cv::Mat* img = src_im.GetOpenCVMat();
|
|
cv::Mat* crop_img = dst_im->GetOpenCVMat();
|
|
int xmin = static_cast<int>(box[0]);
|
|
int ymin = static_cast<int>(box[1]);
|
|
int xmax = static_cast<int>(box[2]);
|
|
int ymax = static_cast<int>(box[3]);
|
|
float centerx = (xmin + xmax) / 2.0f;
|
|
float centery = (ymin + ymax) / 2.0f;
|
|
float half_h = (ymax - ymin) * (1 + expandratio) / 2.0f;
|
|
float half_w = (xmax - xmin) * (1 + expandratio) / 2.0f;
|
|
// adjust h or w to keep image ratio, expand the shorter edge
|
|
if (half_h * 3 > half_w * 4) {
|
|
half_w = half_h * 0.75;
|
|
}
|
|
int crop_xmin = std::max(0, static_cast<int>(centerx - half_w));
|
|
int crop_ymin = std::max(0, static_cast<int>(centery - half_h));
|
|
int crop_xmax = std::min(img->cols - 1, static_cast<int>(centerx + half_w));
|
|
int crop_ymax = std::min(img->rows - 1, static_cast<int>(centery + half_h));
|
|
|
|
crop_img->create(crop_ymax - crop_ymin, crop_xmax - crop_xmin, img->type());
|
|
*crop_img =
|
|
(*img)(cv::Range(crop_ymin, crop_ymax), cv::Range(crop_xmin, crop_xmax));
|
|
center->clear();
|
|
center->emplace_back((crop_xmin + crop_xmax) / 2.0f);
|
|
center->emplace_back((crop_ymin + crop_ymax) / 2.0f);
|
|
|
|
scale->clear();
|
|
scale->emplace_back((crop_xmax - crop_xmin));
|
|
scale->emplace_back((crop_ymax - crop_ymin));
|
|
|
|
dst_im->SetWidth(crop_img->cols);
|
|
dst_im->SetHeight(crop_img->rows);
|
|
return true;
|
|
}
|
|
|
|
} // namespace utils
|
|
} // namespace vision
|
|
} // namespace fastdeploy
|