ITK  5.3.0
Insight Toolkit
SphinxExamples/src/Core/Common/IterateLineThroughImage/Code.cxx
/*=========================================================================
*
* 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
*
* 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.
*
*=========================================================================*/
#include "itkImage.h"
#include "itkRGBPixel.h"
#include "itksys/SystemTools.hxx"
#ifdef ENABLE_QUICKVIEW
# include "QuickView.h"
#endif
using PixelType = itk::RGBPixel<unsigned char>;
using ImageType = itk::Image<PixelType, 2>;
static void
CreateImage(ImageType::Pointer image);
int
main(int argc, char * argv[])
{
ImageType::Pointer image = ImageType::New();
std::string inputFilename;
if (argc < 2)
{
CreateImage(image);
inputFilename = "Synthetic";
}
else
{
image = itk::ReadImage<ImageType>(argv[1]);
inputFilename = argv[1];
}
PixelType pixel;
pixel.SetRed(255);
pixel.SetGreen(127);
pixel.SetBlue(50);
ImageType::RegionType region = image->GetLargestPossibleRegion();
ImageType::IndexType corner1 = region.GetIndex();
corner2[0] = corner1[0] + region.GetSize()[0] - 1;
corner2[1] = corner1[1] + region.GetSize()[1] - 1;
itk::LineIterator<ImageType> it1(image, corner1, corner2);
it1.GoToBegin();
while (!it1.IsAtEnd())
{
it1.Set(pixel);
++it1;
}
#ifdef ENABLE_QUICKVIEW
QuickView viewer;
if (argc > 1)
{
viewer.AddImage<ImageType>(image, true, itksys::SystemTools::GetFilenameName(argv[1]));
}
else
{
viewer.AddImage<ImageType>(image, true, "Synthetic");
}
viewer.Visualize();
#endif
return EXIT_SUCCESS;
}
void
CreateImage(ImageType::Pointer image)
{
ImageType::SizeType regionSize;
regionSize.Fill(100);
ImageType::IndexType regionIndex;
regionIndex.Fill(0);
region.SetSize(regionSize);
region.SetIndex(regionIndex);
PixelType pixel;
pixel.SetRed(0);
pixel.SetGreen(127);
pixel.SetBlue(200);
image->SetRegions(region);
image->Allocate();
image->FillBuffer(pixel);
}
itk::RGBPixel
Represent Red, Green and Blue components for color images.
Definition: itkRGBPixel.h:58
itkRGBPixel.h
itkImageFileReader.h
itk::GTest::TypedefsAndConstructors::Dimension2::SizeType
ImageBaseType::SizeType SizeType
Definition: itkGTestTypedefsAndConstructors.h:49
itkImage.h
itkImageRegionIterator.h
itk::Index::Fill
void Fill(IndexValueType value)
Definition: itkIndex.h:271
itk::Size::Fill
void Fill(SizeValueType value)
Definition: itkSize.h:211
itk::GTest::TypedefsAndConstructors::Dimension2::IndexType
ImageBaseType::IndexType IndexType
Definition: itkGTestTypedefsAndConstructors.h:50
QuickView.h
QuickView::AddImage
void AddImage(TImage *, bool FlipVertical=true, std::string Description="")
itk::Index::GetIndex
const IndexValueType * GetIndex() const
Definition: itkIndex.h:229
itk::GTest::TypedefsAndConstructors::Dimension2::RegionType
ImageBaseType::RegionType RegionType
Definition: itkGTestTypedefsAndConstructors.h:54
itkLineIterator.h
QuickView
A convenient class to render itk images with vtk.
Definition: QuickView.h:111
itk::Image
Templated n-dimensional image class.
Definition: itkImage.h:88
itk::LineIterator
An iterator that walks a Bresenham line through an ND image with write access to pixels.
Definition: itkLineIterator.h:56
itk::ImageRegion::SetSize
void SetSize(const SizeType &size)
Definition: itkImageRegion.h:174
QuickView::Visualize
void Visualize(bool interact=true)