DGtal  1.3.beta
testPNMRawWriter.cpp
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1 
30 #include <iostream>
32 #include "DGtal/base/Common.h"
33 #include "DGtal/kernel/SpaceND.h"
34 #include "DGtal/kernel/domains/HyperRectDomain.h"
35 #include "DGtal/images/ImageSelector.h"
36 #include "DGtal/io/colormaps/GrayscaleColorMap.h"
37 #include "DGtal/io/colormaps/HueShadeColorMap.h"
38 #include "DGtal/io/colormaps/GradientColorMap.h"
39 #include "DGtal/io/colormaps/ColorBrightnessColorMap.h"
40 #include "DGtal/io/colormaps/RandomColorMap.h"
41 #include "DGtal/io/colormaps/BasicColorToScalarFunctors.h"
42 #include "DGtal/base/BasicFunctors.h"
43 
44 #include "DGtal/io/writers/PGMWriter.h"
45 #include "DGtal/io/writers/PPMWriter.h"
46 #include "DGtal/io/readers/PGMReader.h"
47 #include "DGtal/io/writers/RawWriter.h"
48 #include "DGtal/io/boards/Board2D.h"
50 
51 using namespace DGtal;
52 
54 // Functions for testing class PNMWriter.
56 
61 {
62 
63  trace.beginBlock ( "Testing block ..." );
64 
65  typedef SpaceND<2> TSpace;
66  typedef TSpace::Point Point;
69  typedef HueShadeColorMap<unsigned char,2> HueTwice;
71  // Gradient using the "Jet" preset.
73  // Gradient from black to red.
74  const int BlackColor = DGTAL_RGB2INT(0,0,0);
75  const int RedColor = DGTAL_RGB2INT(255,0,0);
77  // Gradient from black to red, using a ColorBrightnessColorMap.
79 
80  Point a ( 1, 1);
81  Point b ( 16, 16);
83  Image image(Domain(a,b));
84  for(unsigned int i=0 ; i < 256; i++)
85  image[i] = i;
86 
87  PPMWriter<Image,Hue>::exportPPM("export-hue.ppm",image, Hue(0,255) );
88  PPMWriter<Image,HueTwice>::exportPPM("export-hue-twice.ppm",image,HueTwice(0,255));
89  PGMWriter<Image>::exportPGM("export-hue-twice.pgm",image);
90  PPMWriter<Image,Gray>::exportPPM("export-gray.ppm",image, Gray(0,255));
91  PPMWriter<Image,Jet>::exportPPM("export-jet.ppm",image,Jet(0,255));
92  PPMWriter<Image,RedShade1>::exportPPM("export-red1.ppm",image,RedShade1(0,255));
93  PPMWriter<Image,RedShade2>::exportPPM("export-red2.ppm",image,RedShade2(0,255));
94 
95  //TestingFunctor
97  Jet jf( 0, 255 );
99  RedFunctor redFunctor( jf, rf );
100  PGMWriter<Image, RedFunctor>::exportPGM("export-jet-red.pgm", image, redFunctor);
101 
102  //test Raw export
103  RawWriter<Image>::exportRaw8("export-hue-twice.raw",image);
104 
105  //test Image export with libboard
106  Board2D board;
108  Display2DFactory::drawImage<HueTwice>(board, image, (unsigned char)0, (unsigned char)255);
109  board.saveSVG("export-hue-twice.svg");
110 
111  trace.endBlock();
112 
113  return true;
114 }
115 
116 
118 {
119  trace.beginBlock ( "Testing R/W on PPM Writer (issue 254) ..." );
120 
121  typedef SpaceND<2> TSpace;
122  typedef TSpace::Point Point;
124 
125  Point a ( 0, 0);
126  Point b ( 15, 15);
128  Domain domain(a,b);
129  Image image(domain);
130  for(unsigned int i=0 ; i < 256; i++)
131  image[i] = i;
132 
133  PGMWriter<Image>::exportPGM("export-gray-first.pgm",image);
134 
135  Image imageRead = PGMReader<Image>::importPGM("export-gray-first.pgm");
136 
137  PGMWriter<Image>::exportPGM("export-gray-second.pgm",imageRead);
138 
139  trace.info() << image<<std::endl;
140  trace.info() << imageRead<<std::endl;
141 
142 
143  bool ok = true;
144  for(Image::Domain::ConstIterator it = image.domain().begin(),
145  itend = image.domain().end();
146  it != itend;
147  ++it)
148  ok = (image(*it) == imageRead(*it));
149 
150  trace.endBlock();
151  return ok;
152 }
153 
155 // Standard services - public :
156 
157 int main( int argc, char** argv )
158 {
159  trace.beginBlock ( "Testing class PNMWriter" );
160  trace.info() << "Args:";
161  for ( int i = 0; i < argc; ++i )
162  trace.info() << " " << argv[ i ];
163  trace.info() << std::endl;
164 
165  bool res = testPNMWriter() && testRWIssue254(); // && ... other tests
166  trace.emphase() << ( res ? "Passed." : "Error." ) << std::endl;
167  trace.endBlock();
168  return res ? 0 : 1;
169 }
170 
171 // //
testRWIssue254
bool testRWIssue254()
Definition: testPNMRawWriter.cpp:117
LibBoard::Board::setUnit
void setUnit(Unit unit)
Definition: Board.cpp:240
DGtal::GrayscaleColorMap
Aim: This class template may be used to (linearly) convert scalar values in a given range into gray l...
Definition: GrayscaleColorMap.h:93
image
Image image(domain)
DGtal::functors::Composer
Aim: Define a new Functor from the composition of two other functors.
Definition: BasicFunctors.h:417
DGtal::HyperRectDomain
Aim: Parallelepidec region of a digital space, model of a 'CDomain'.
Definition: HyperRectDomain.h:99
DGtal::Trace::endBlock
double endBlock()
LibBoard::Board::UCentimeter
@ UCentimeter
Definition: Board.h:43
DGtal::HueShadeColorMap< unsigned char >
DGtal::RawWriter::exportRaw8
static bool exportRaw8(const std::string &filename, const Image &aImage, const Functor &aFunctor=Functor())
DGtal::Trace::emphase
std::ostream & emphase()
DGtal::trace
Trace trace
Definition: Common.h:154
DGtal::ImageContainerBySTLVector< Domain, Value >::ConstIterator
std::vector< Value >::const_iterator ConstIterator
Definition: ImageContainerBySTLVector.h:265
DGtal::PPMWriter::exportPPM
static bool exportPPM(const std::string &filename, const Image &aImage, const Functor &aFunctor=Functor(), bool topbottomOrder=true)
DGtal::Trace::beginBlock
void beginBlock(const std::string &keyword="")
DGtal::SpaceND
Definition: SpaceND.h:95
DGtal::functors::RedChannel
Definition: BasicColorToScalarFunctors.h:57
DGtal::Trace::info
std::ostream & info()
Image
ImageContainerBySTLVector< Domain, Value > Image
Definition: testSimpleRandomAccessRangeFromPoint.cpp:45
DGtal
DGtal is the top-level namespace which contains all DGtal functions and types.
DGtal::PGMReader::importPGM
static ImageContainer importPGM(const std::string &aFilename, const Functor &aFunctor=Functor(), bool topbotomOrder=true)
Domain
HyperRectDomain< Space > Domain
Definition: testSimpleRandomAccessRangeFromPoint.cpp:44
LibBoard::Board::saveSVG
void saveSVG(const char *filename, PageSize size=Board::BoundingBox, double margin=10.0) const
Definition: Board.cpp:1012
DGtal::PGMWriter::exportPGM
static bool exportPGM(const std::string &filename, const Image &aImage, const Functor &aFunctor=Functor(), bool saveASCII=false, bool topbotomOrder=true)
testPNMWriter
bool testPNMWriter()
Definition: testPNMRawWriter.cpp:60
DGtal::Board2D
Aim: This class specializes a 'Board' class so as to display DGtal objects more naturally (with <<)....
Definition: Board2D.h:70
DGtal::ColorBrightnessColorMap
Aim: This class template may be used to (linearly) convert scalar values in a given range into a colo...
Definition: ColorBrightnessColorMap.h:89
DGtal::Image
Aim: implements association bewteen points lying in a digital domain and values.
Definition: Image.h:69
domain
Domain domain
Definition: testProjection.cpp:88
main
int main(int argc, char **argv)
Definition: testPNMRawWriter.cpp:157
DGtal::ImageSelector
Aim: Automatically defines an adequate image type according to the hints given by the user.
Definition: ImageSelector.h:66
Point
MyPointD Point
Definition: testClone2.cpp:383
DGtal::GradientColorMap
Aim: This class template may be used to (linearly) convert scalar values in a given range into a colo...
Definition: GradientColorMap.h:119