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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkImageRGBToXYZ.h"
#include "vtkImageShiftScale.h"
#include "vtkImageXYZToLAB.h"
#include "vtkNew.h"
#include "vtkPNGReader.h"
#include "vtkTestUtilities.h"
#include "vtkXMLImageDataReader.h"
#include "vtkXMLImageDataWriter.h"
int TestRGBToLAB(int argc, char* argv[])
{
char* input = vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/vtk.png");
char* fname = vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/rgb2lab.vti");
vtkNew<vtkXMLImageDataReader> reader;
reader->SetFileName(fname);
reader->Update();
vtkNew<vtkPNGReader> inputReader;
inputReader->SetFileName(input);
vtkNew<vtkImageShiftScale> normalizer;
normalizer->SetScale(1.0 / 255);
vtkNew<vtkImageRGBToXYZ> rgb2xyz;
vtkNew<vtkImageXYZToLAB> xyz2lab;
normalizer->SetInputConnection(inputReader->GetOutputPort());
rgb2xyz->SetInputConnection(normalizer->GetOutputPort());
xyz2lab->SetInputConnection(rgb2xyz->GetOutputPort());
xyz2lab->Update();
return vtkTestUtilities::CompareDataObjects(
xyz2lab->GetOutputDataObject(0), reader->GetOutputDataObject(0))
? EXIT_SUCCESS
: EXIT_FAILURE;
}
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