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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* 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 itkFrameAverageVideoFilter_h
#define itkFrameAverageVideoFilter_h
#include "itkVideoToVideoFilter.h"
namespace itk
{
/**
* \class FrameAverageVideoFilter
* \brief Average frames over a designated range in a video
*
* This filter computes the average of X frames at once from an input video. It
* processes one frame forward at a time.
*
* \ingroup ITKVideoFiltering
*/
template <typename TInputVideoStream, typename TOutputVideoStream>
class ITK_TEMPLATE_EXPORT FrameAverageVideoFilter : public VideoToVideoFilter<TInputVideoStream, TOutputVideoStream>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(FrameAverageVideoFilter);
/** Standard class type aliases */
using InputVideoStreamType = TInputVideoStream;
using OutputVideoStreamType = TOutputVideoStream;
using Self = FrameAverageVideoFilter<InputVideoStreamType, OutputVideoStreamType>;
using Superclass = VideoToVideoFilter<InputVideoStreamType, OutputVideoStreamType>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
using ConstWeakPointer = WeakPointer<const Self>;
using InputFrameType = typename TInputVideoStream::FrameType;
using InputPixelType = typename InputFrameType::PixelType;
using InputFrameSpatialRegionType = typename InputFrameType::RegionType;
using OutputFrameType = typename TOutputVideoStream::FrameType;
using OutputPixelType = typename OutputFrameType::PixelType;
using OutputFrameSpatialRegionType = typename OutputFrameType::RegionType;
itkNewMacro(Self);
itkOverrideGetNameOfClassMacro(FrameAverageVideoFilter);
/** Get/Set the number of frames to average over */
void
SetNumberOfFrames(SizeValueType numFrames);
SizeValueType
GetNumberOfFrames();
protected:
/** Constructor and Destructor */
FrameAverageVideoFilter();
~FrameAverageVideoFilter() override = default;
/** PrintSelf */
void
PrintSelf(std::ostream & os, Indent indent) const override;
/** FrameAverageVideoFilter is implemented as a temporal streaming and
* spatially multithreaded filter, so we override ThreadedGenerateData */
void
ThreadedGenerateData(const OutputFrameSpatialRegionType & outputRegionForThread, int threadId) override;
private:
}; // end class FrameAverageVideoFilter
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkFrameAverageVideoFilter.hxx"
#endif
#endif
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