1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
|
/*=========================================================================
Program: ORFEO Toolbox
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
See OTBCopyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "itkMacro.h"
#include <iostream>
#include <complex> //only for the isnan() test line 148
#include "otbMath.h"
#include "otbImage.h"
#include "otbBandMathImageFilter.h"
#include "otbImageFileWriter.h"
int otbBandMathImageFilterNew( int itkNotUsed(argc), char* itkNotUsed(argv) [])
{
typedef double PixelType;
//typedef float PixelType;
typedef otb::Image<PixelType, 2> ImageType;
typedef otb::BandMathImageFilter<ImageType> FilterType;
FilterType::Pointer filter = FilterType::New();
return EXIT_SUCCESS;
}
int otbBandMathImageFilter( int itkNotUsed(argc), char* itkNotUsed(argv) [])
{
typedef double PixelType;
//typedef float PixelType;
typedef otb::Image<PixelType, 2> ImageType;
typedef otb::BandMathImageFilter<ImageType> FilterType;
unsigned int i;
const unsigned int N = 100;
unsigned int FAIL_FLAG = 0;
ImageType::SizeType size;
size.Fill(N);
ImageType::IndexType index;
index.Fill(0);
ImageType::RegionType region;
region.SetSize(size);
region.SetIndex(index);
ImageType::Pointer image1 = ImageType::New();
ImageType::Pointer image2 = ImageType::New();
ImageType::Pointer image3 = ImageType::New();
image1->SetLargestPossibleRegion( region );
image1->SetBufferedRegion( region );
image1->SetRequestedRegion( region );
image1->Allocate();
image2->SetLargestPossibleRegion( region );
image2->SetBufferedRegion( region );
image2->SetRequestedRegion( region );
image2->Allocate();
image3->SetLargestPossibleRegion( region );
image3->SetBufferedRegion( region );
image3->SetRequestedRegion( region );
image3->Allocate();
typedef itk::ImageRegionIteratorWithIndex<ImageType> IteratorType;
IteratorType it1(image1, region);
IteratorType it2(image2, region);
IteratorType it3(image3, region);
for (it1.GoToBegin(), it2.GoToBegin(), it3.GoToBegin(); !it1.IsAtEnd(); ++it1, ++it2, ++it3)
{
ImageType::IndexType i1 = it1.GetIndex();
ImageType::IndexType i2 = it2.GetIndex();
ImageType::IndexType i3 = it3.GetIndex();
it1.Set( i1[0] + i1[1] -50 );
it2.Set( i2[0] * i2[1] );
it3.Set( i3[0] + i3[1] * i3[1] );
}
FilterType::Pointer filter = FilterType::New();
std::cout << "Number Of Threads : " << filter->GetNumberOfThreads() << std::endl;
filter->SetNthInput(0, image1);
filter->SetNthInput(1, image2);
filter->SetNthInput(2, image3, "canal3");
filter->SetExpression("cos(2 * pi * b1)/(2 * pi * b2 + 1E-3)*sin(pi * canal3) + ndvi(b1, b2) * sqrt(2) * canal3");
filter->Update();
std::cout << "\n--- Standard Use\n";
std::cout << "Parsed Expression : " << filter->GetExpression() << std::endl;
ImageType::Pointer output = filter->GetOutput();
IteratorType it(output, region);
for (it1.GoToBegin(), it2.GoToBegin(), it3.GoToBegin(), it.GoToBegin(); !it1.IsAtEnd(); ++it1, ++it2, ++it3, ++it)
{
ImageType::IndexType i1 = it1.GetIndex();
ImageType::IndexType i2 = it2.GetIndex();
ImageType::IndexType i3 = it3.GetIndex();
PixelType px1 = ( i1[0] + i1[1] -50 );
PixelType px2 = ( i2[0] * i2[1] );
PixelType px3 = ( i3[0] + i3[1] * i3[1] );
PixelType result = it.Get();
PixelType ndvi_expected;
PixelType error;
if ( vcl_abs( px1 + px2) < 1E-6 )
ndvi_expected = 0.0;
else
ndvi_expected = (px2-px1)/(px2+px1);
PixelType expected = vcl_cos( 2 * otb::CONST_PI * px1 ) / ( 2 * otb::CONST_PI * px2 + 1E-3 ) * vcl_sin( otb::CONST_PI * px3 )
+ ndvi_expected * vcl_sqrt(PixelType(2)) * px3;
/*
std::cout << "Pixel_1 = " << it1.Get() << " Pixel_2 = " << it2.Get() << " Pixel_3 = " << it3.Get()
<< " Result = " << it.Get() << " Expected = " << expected << std::endl;
*/
error = (result - expected) * (result - expected) / (result + expected);
if ( error > 1E-9 )
{
std::cout
<< "Error = " << error << " > 1E-9 -> TEST FAILLED" << std::endl
<< "Pixel_1 = " << it1.Get()
<< " Pixel_2 = " << it2.Get()
<< " Pixel_3 = " << it3.Get()
<< " Result = " << it.Get()
<< " Expected = " << expected << std::endl;
FAIL_FLAG++;
break;
}
}
/** Edge Effect Handling */
std::cout << "\n--- Edge Effect Handling\n";
std::cout << "- +/-inf section\n";
filter->SetExpression("b1 / b2");
filter->Update();
std::cout << "- nan section\n";
it1.GoToBegin(); it2.GoToBegin(); it.GoToBegin();
for(i=1; i<=50; ++i , ++it1, ++it2, ++it){}
if(vnl_math_isnan(it.Get()))
std::cout << "Pixel_1 = " << it1.Get() << " Pixel_2 = " << it2.Get() << " Result = " << it.Get() << " Expected = nan\n" << std::endl;
else
{
std::cout
<< "\nError > Bad Edge Effect Handling -> Test Failled\n"
<< "Pixel_1 = " << it1.Get() << " Pixel_2 = " << it2.Get()
<< " Result = " << it.Get() << " Expected = nan\n" << std::endl;
FAIL_FLAG++;
}
if (FAIL_FLAG)
{
std::cout << "[FAILLED]" << std::endl;
return EXIT_FAILURE;
}
std::cout << "[PASSED]" << std::endl;
return EXIT_SUCCESS;
}
int otbBandMathImageFilterWithIdx( int itkNotUsed(argc), char* argv[])
{
const char * outfname1 = argv[1];
const char * outfname2 = argv[2];
typedef double PixelType;
//typedef float PixelType;
typedef otb::Image<PixelType, 2> ImageType;
typedef otb::BandMathImageFilter<ImageType> FilterType;
typedef otb::ImageFileWriter<ImageType> WriterType;
const unsigned int N = 100;
ImageType::SizeType size;
size.Fill(N);
ImageType::IndexType index;
index.Fill(0);
ImageType::RegionType region;
region.SetSize(size);
region.SetIndex(index);
ImageType::PointType origin;
origin[0] = -25;
origin[1] = -25;
ImageType::SpacingType spacing;
spacing[0] = 0.5;
spacing[1] = 0.5;
ImageType::Pointer image1 = ImageType::New();
ImageType::Pointer image2 = ImageType::New();
ImageType::Pointer image3 = ImageType::New();
image1->SetLargestPossibleRegion( region );
image1->SetBufferedRegion( region );
image1->SetRequestedRegion( region );
image1->Allocate();
image2->SetLargestPossibleRegion( region );
image2->SetBufferedRegion( region );
image2->SetRequestedRegion( region );
image2->Allocate();
image3->SetLargestPossibleRegion( region );
image3->SetBufferedRegion( region );
image3->SetRequestedRegion( region );
image3->Allocate();
typedef itk::ImageRegionIteratorWithIndex<ImageType> IteratorType;
IteratorType it1(image1, region);
IteratorType it2(image2, region);
IteratorType it3(image3, region);
image1->SetOrigin(origin);
image1->SetSpacing(spacing);
image2->SetOrigin(origin);
image2->SetSpacing(spacing);
image3->SetOrigin(origin);
image3->SetSpacing(spacing);
for (it1.GoToBegin(), it2.GoToBegin(), it3.GoToBegin(); !it1.IsAtEnd(); ++it1, ++it2, ++it3)
{
ImageType::IndexType i1 = it1.GetIndex();
ImageType::IndexType i2 = it2.GetIndex();
ImageType::IndexType i3 = it3.GetIndex();
it1.Set( i1[0] + i1[1] -50 );
it2.Set( i2[0] * i2[1] );
it3.Set( i3[0] + i3[1] * i3[1] );
}
FilterType::Pointer filter = FilterType::New();
std::cout << "Number Of Threads : " << filter->GetNumberOfThreads() << std::endl;
filter->SetNthInput(0, image1);
filter->SetNthInput(1, image2);
filter->SetNthInput(2, image3);
#ifdef OTB_MUPARSER_HAS_CXX_LOGICAL_OPERATORS
filter->SetExpression("(sqrt(idxX*idxX+idxY*idxY) < 50) ? b2 : b3");
#else
filter->SetExpression("if(sqrt(idxX*idxX+idxY*idxY) < 50, b2, b3)");
#endif
WriterType::Pointer writer = WriterType::New();
writer->SetInput(filter->GetOutput());
writer->SetFileName(outfname1);
writer->Update();
#ifdef OTB_MUPARSER_HAS_CXX_LOGICAL_OPERATORS
filter->SetExpression("(sqrt(idxPhyX*idxPhyX+idxPhyY*idxPhyY) < 25) ? b2 : b3");
#else
filter->SetExpression("if(sqrt(idxPhyX*idxPhyX+idxPhyY*idxPhyY) < 25, b2, b3)");
#endif
WriterType::Pointer writer2 = WriterType::New();
writer2->SetInput(filter->GetOutput());
writer2->SetFileName(outfname2);
writer2->Update();
return EXIT_SUCCESS;
}
|
