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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 itkRGBToVectorPixelAccessor_h
#define itkRGBToVectorPixelAccessor_h
#include "itkRGBPixel.h"
#include "itkVector.h"
namespace itk
{
namespace Accessor
{
/**
* \class RGBToVectorPixelAccessor
* \brief Give access to a RGBPixel as if it were a Vector type.
*
* This class is intended to be used as parameter of
* an ImageAdaptor to make an RGBPixel image appear as being
* an image of Vector pixel type.
*
* \sa ImageAdaptor
* \ingroup ImageAdaptors
*
* \ingroup ITKImageAdaptors
*/
template <typename T>
class RGBToVectorPixelAccessor
{
public:
/** Standard class type aliases. */
using Self = RGBToVectorPixelAccessor;
/** External type alias. It defines the external aspect
* that this class will exhibit */
using ExternalType = Vector<T, 3>;
/** Internal type alias. It defines the internal real
* representation of data */
using InternalType = RGBPixel<T>;
/** Write access to the RGBToVector component */
inline void
Set(InternalType & output, const ExternalType & input) const
{
output[0] = input[0];
output[1] = input[1];
output[2] = input[2];
}
/** Read access to the RGBToVector component */
inline ExternalType
Get(const InternalType & input) const
{
ExternalType v(input.GetDataPointer());
return v;
}
private:
};
} // end namespace Accessor
} // end namespace itk
#endif
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