N-Dekker

// Related to https://github.com/InsightSoftwareConsortium/ITK/pull/4347
// PERF: Replace `std::function` with template argument MultiThreaderBase ParallelizeImageRegion, ParallelizeImageRegionRestrictDirection
// Niels Dekker, LKEB, Leiden University Medical Center, 2023

#include <itkImageRegion.h>

#include <algorithm>
#include <chrono>
#include <numeric>
#include <vector>

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#include <chrono>

    using namespace std::chrono;
    const auto timePoint = high_resolution_clock::now();

    // Do the time consuming work here!

    std::cout << " Duration: "
              << duration_cast<duration<double>>(high_resolution_clock::now() - timePoint).count() << " seconds" << std::endl;

N-Dekker

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

// Script to add in-class {} member initializers to ITK classes that have one or more virtual member function,
// itkNewMacro, itkSimpleNewMacro, or itkCreateAnotherMacro calls.
//
// Only tested with Visual Studio 2019 (C++14).
// 
// Needs to have the directory path to the ITK sources as command-line argument, for example:

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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
 *

N-Dekker

/*
Related to:
https://github.com/SuperElastix/elastix/pull/358#issuecomment-731736374

Niels Dekker, LKEB, Leiden University Medical Center, 2020
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
*/

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/*
Estimates the axis-aligned minimum bounding box of the buffered region of an image.

Roughly equivalent to ImageMaskSpatialObject::GetAxisAlignedBoundingBoxRegion() from
"itkImageMaskSpatialObject.hxx", at
github.com/InsightSoftwareConsortium/ITK/blob/91ab86f63eb5fc9799bb25fa49e76adf0d1b5251/Modules/Core/SpatialObjects/include

Related to:

"ENH: GTest for ImageMaskSpatialObject::GetAxisAlignedBoundingBoxRegion()"

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/*
Estimates the runtime duration that it takes to increase the capacity of
an `std::vector<itk::NeighborhoodAllocator<int>>`.

With VS2017, the `vector::reserve` in this test appears to run more than 4x faster,
now that `itk::NeighborhoodAllocator` has a move-constructor that is `noexcept`.

Related to the discussion, "Regarding C++11 noexcept" at the ITK forum:
https://discourse.itk.org/t/regarding-c-11-noexcept/1517

N-Dekker

/*
Measures performance of "old-school" ConstNeighborhoodIterator::GetPixel(i, isInBounds)
Related to the patch "PERF: Improve ConstNeighborhoodIterator::GetPixel(i, isInBounds )",
http://review.source.kitware.com/#/c/23826/ by Bradley Lowekamp

Niels Dekker, LKEB, Leiden University Medical Center, 2018

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

N-Dekker

/*
Measures performance of "old-school" itk::ConstNeighborhoodIterator.
Related to the patch "PERF: Made ConstNeighborhoodIterator::GetPixel(i) much faster",
http://review.source.kitware.com/#/c/23813/.

Niels Dekker, LKEB, Leiden University Medical Center, 2018

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

N-Dekker

/*
Compares performance of "old-school" neighborhood iteration, using
itk::ConstantBoundaryCondition, and range-based neighborhood iteration,
using the patch "WIP: Added policy for constant NeighborhoodRange values
outside image", http://review.source.kitware.com/#/c/23795/7.

Niels Dekker, LKEB, Leiden University Medical Center, 2018

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,