40 lines
1.5 KiB
C++
40 lines
1.5 KiB
C++
// Copyright 2019-2020 The MediaPipe Authors.
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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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//
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// Helper functions for working with ImageFrame and OpenCV.
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#ifndef MEDIAPIPE_FRAMEWORK_FORMATS_IMAGE_OPENCV_H_
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#define MEDIAPIPE_FRAMEWORK_FORMATS_IMAGE_OPENCV_H_
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#include "mediapipe/framework/formats/image.h"
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#include "mediapipe/framework/port/opencv_core_inc.h"
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namespace mediapipe {
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namespace formats {
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// Image to OpenCV helper conversion function.
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// A view into existing data is created (zero copy).
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// The pixel data remains owned and maintained by mediapipe::Image.
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// When converting a const Image into a cv::Mat,
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// the const modifier is lost. The caller must be careful
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// not to use the returned object to modify the data in a const Image,
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// even though the returned data is mutable.
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// Note: this returns a shared_ptr so it can keep the CPU memory referenced
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// by the Mat alive.
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std::shared_ptr<cv::Mat> MatView(const mediapipe::Image* image);
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} // namespace formats
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} // namespace mediapipe
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#endif // MEDIAPIPE_FRAMEWORK_FORMATS_IMAGE_FRAME_OPENCV_H_
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