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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* 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.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:
/** Standard class typedefs */
typedef TInputVideoStream InputVideoStreamType;
typedef TOutputVideoStream OutputVideoStreamType;
typedef FrameAverageVideoFilter< InputVideoStreamType,
OutputVideoStreamType > Self;
typedef VideoToVideoFilter< InputVideoStreamType,
OutputVideoStreamType > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
typedef WeakPointer< const Self > ConstWeakPointer;
typedef typename TInputVideoStream::FrameType InputFrameType;
typedef typename InputFrameType::PixelType InputPixelType;
typedef typename InputFrameType::RegionType InputFrameSpatialRegionType;
typedef typename TOutputVideoStream::FrameType OutputFrameType;
typedef typename OutputFrameType::PixelType OutputPixelType;
typedef typename OutputFrameType::RegionType OutputFrameSpatialRegionType;
itkNewMacro(Self);
itkTypeMacro(FrameAverageVideoFilter, VideoToVideoFilter);
/** Get/Set the number of frames to average over */
void SetNumberOfFrames(SizeValueType numFrames);
SizeValueType GetNumberOfFrames();
protected:
/** Constructor and Destructor */
FrameAverageVideoFilter();
virtual ~FrameAverageVideoFilter() ITK_OVERRIDE {}
/** PrintSelf */
virtual void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
/** FrameAverageVideoFilter is implemented as a temporal streaming and
* spatially multithreaded filter, so we override ThreadedGenerateData */
virtual void ThreadedGenerateData(
const OutputFrameSpatialRegionType& outputRegionForThread,
int threadId) ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(FrameAverageVideoFilter);
}; // end class FrameAverageVideoFilter
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkFrameAverageVideoFilter.hxx"
#endif
#endif
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