testSTBWriter.cpp File Reference

#include <iostream>
#include "DGtal/base/Common.h"
#include "ConfigTest.h"
#include "DGtalCatch.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/io/readers/STBReader.h"
#include "DGtal/io/writers/STBWriter.h"
#include "DGtal/images/ImageSelector.h"
#include "DGtal/io/colormaps/GradientColorMap.h"
#include "DGtal/io/writers/PPMWriter.h"

Go to the source code of this file.

Functions
	TEST_CASE ("Testing STBWriter")

Detailed Description

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Author

David Coeurjolly (david.nosp@m..coe.nosp@m.urjol.nosp@m.ly@l.nosp@m.iris..nosp@m.cnrs.nosp@m..fr ) Laboratoire d'InfoRmatique en Image et Systemes d'information - LIRIS (CNRS, UMR 5205), CNRS, France

Date

2022/06/14

Functions for testing class STBReader.

This file is part of the DGtal library.

Definition in file testSTBWriter.cpp.

Function Documentation

TEST_CASE()

TEST_CASE

(

"Testing STBWriter"

)

Definition at line 51 of file testSTBWriter.cpp.

{
  SECTION("Testing feature io/readers of STBWriter (Grayscale PNG)")
  {
    std::string filename = testPath + "samples/contourS.png";
    typedef ImageSelector < Z2i::Domain, Color>::Type Image;
    Image image = STBReader<Image>::import( filename );
    CAPTURE(image);
    PPMWriter<Image>::exportPPM("contourS-export.ppm", image);
    
    STBWriter<Image>::exportPNG("contourS-export.png", image);
    CHECK( image.isValid());
  }
  
  SECTION("Testing feature io/readers of STBWriter (PNG)")
  {
    std::string filename = testPath + "samples/color64.png";
    typedef ImageSelector < Z2i::Domain, Color>::Type Image;
    Image image = STBReader<Image>::import( filename );
    CHECK( image.isValid());
    PPMWriter<Image>::exportPPM("color64-export.ppm", image);
    STBWriter<Image>::exportTGA("color64-export.tga", image);
    STBWriter<Image>::exportJPG("color64-export.jpg", image);
    STBWriter<Image>::exportBMP("color64-export.bmp", image);
  }
  
  SECTION("Testing scalar functor (PNG)")
  {
    typedef ImageSelector < Z2i::Domain, int>::Type Image;
    Image image(Z2i::Domain(Z2i::Point(0,0),  Z2i::Point(8,8)));
    
    image.setValue(Z2i::Point(3,3), 10);
    image.setValue(Z2i::Point(1,1), 1);
    image.setValue(Z2i::Point(7,7), 20);
 
    // Creating colormap.
    GradientColorMap<int> cmap_grad( 0, 30 );
    cmap_grad.addColor( Color( 50, 50, 255 ) );
    cmap_grad.addColor( Color( 255, 0, 0 ) );
    cmap_grad.addColor( Color( 255, 255, 10 ) );
    
    CHECK( image.isValid());
    STBWriter<Image,GradientColorMap<int>>::exportPNG("scalar-export.jpg", image, cmap_grad );
  }
  
}

References DGtal::GradientColorMap< PValue, PDefaultPreset, PDefaultFirstColor, PDefaultLastColor >::addColor(), CAPTURE(), DGtal::STBWriter< TImageContainer, TFunctor >::exportBMP(), DGtal::STBWriter< TImageContainer, TFunctor >::exportJPG(), DGtal::STBWriter< TImageContainer, TFunctor >::exportPNG(), DGtal::PPMWriter< TImage, TFunctor >::exportPPM(), DGtal::STBWriter< TImageContainer, TFunctor >::exportTGA(), DGtal::STBReader< TImageContainer, TFunctor >::import(), and SECTION().