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/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* 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 itkImageDomain_h
#define itkImageDomain_h
#include <itkImageBase.h>
#include <itkImageMaskSpatialObject.h>
#include <itkDeref.h>
namespace elastix
{
/** Enum to indicate that a mask is null, has the same domain as the input image, or has a different image domain. */
enum class MaskCondition
{
IsNull,
HasSameImageDomain,
HasDifferentImageDomain
};
/** Returns true, if and only if the mask has exactly the same image domain (image region, origin, spacing, direction)
* as the specified input image. */
template <unsigned int VImageDimension>
bool
MaskHasSameImageDomain(const itk::ImageMaskSpatialObject<VImageDimension> & mask,
const itk::ImageBase<VImageDimension> & inputImage)
{
const auto & maskImage = itk::Deref(mask.GetImage());
return maskImage.GetLargestPossibleRegion() == inputImage.GetLargestPossibleRegion() &&
maskImage.GetOrigin() == inputImage.GetOrigin() && maskImage.GetSpacing() == inputImage.GetSpacing() &&
maskImage.GetDirection() == inputImage.GetDirection();
}
} // namespace elastix
#endif
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