File: itkFrameAverageVideoFilterTest.cxx

package info (click to toggle)
insighttoolkit4 4.13.3withdata-dfsg2-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 491,256 kB
  • sloc: cpp: 557,600; ansic: 180,546; fortran: 34,788; python: 16,572; sh: 2,187; lisp: 2,070; tcl: 993; java: 362; perl: 200; makefile: 133; csh: 81; pascal: 69; xml: 19; ruby: 10
file content (244 lines) | stat: -rw-r--r-- 8,192 bytes parent folder | download | duplicates (6)
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
/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  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 <iostream>
#include "itkFrameAverageVideoFilter.h"
#include "itkVideoFileReader.h"
#include "itkVideoFileWriter.h"
#include "itkFileListVideoIOFactory.h"


// Set up typedefs for test
const unsigned int Dimension =                   2;
typedef unsigned char                            InputPixelType;
typedef itk::Image< InputPixelType, Dimension >  InputFrameType;
typedef itk::VideoStream< InputFrameType >       InputVideoType;
typedef double                                   OutputPixelType;
typedef itk::Image< OutputPixelType, Dimension > OutputFrameType;
typedef itk::VideoStream< OutputFrameType >      OutputVideoType;
typedef itk::SizeValueType                       SizeValueType;


/**
 * Helper function
 */
namespace itk
{
namespace FrameAverageVideoFilterTest
{

/**
 * Create a new frame and fill it with the indicated value
 */
InputFrameType::Pointer CreateInputFrame(InputPixelType val)
{
  InputFrameType::Pointer out = InputFrameType::New();

  InputFrameType::RegionType largestRegion;
  InputFrameType::SizeType sizeLR;
  InputFrameType::IndexType startLR;
  startLR.Fill(0);
  sizeLR[0] = 50;
  sizeLR[1] = 40;
  largestRegion.SetSize(sizeLR);
  largestRegion.SetIndex(startLR);
  out->SetRegions(largestRegion);

  out->Allocate();

  // Fill with the desired value
  itk::ImageRegionIterator<InputFrameType> iter(out, largestRegion);
  while(!iter.IsAtEnd())
    {
    iter.Set(val);
    ++iter;
    }

  return out;
}

} // end namespace FrameAverageVideoFilterTest
} // end namespace itk


/**
 * Main test
 */
int itkFrameAverageVideoFilterTest( int argc, char* argv[] )
{

  //////
  // Check Arguments
  //////
  if (argc < 3)
    {
    std::cout << "Usage: " << argv[0] << " input_file_string output_file_string" << std::endl;
    return EXIT_FAILURE;
    }

  // Instantiate the filter
  typedef itk::FrameAverageVideoFilter< InputVideoType, OutputVideoType > FilterType;
  FilterType::Pointer filter = FilterType::New();

  // Set up an input VideoStream
  InputVideoType::Pointer inputVideo = InputVideoType::New();
  SizeValueType numInputFrames = 50;
  inputVideo->SetNumberOfBuffers(numInputFrames);
  itk::TemporalRegion inputTempRegion;
  inputTempRegion.SetFrameStart(0);
  inputTempRegion.SetFrameDuration(numInputFrames);
  inputVideo->SetLargestPossibleTemporalRegion(inputTempRegion);
  inputVideo->SetRequestedTemporalRegion(inputTempRegion);
  inputVideo->SetBufferedTemporalRegion(inputTempRegion);
  for (SizeValueType i = 0; i < numInputFrames; ++i)
    {
    inputVideo->SetFrame(i, itk::FrameAverageVideoFilterTest::CreateInputFrame(i));
    }
  filter->SetInput(inputVideo);


  //////
  // Test filter with average over 2 frames
  //////

  filter->SetNumberOfFrames(2);
  filter->UpdateOutputInformation();

  // Make sure output largest possible temporal region is correct
  itk::TemporalRegion outputLargestTempRegion =
    filter->GetOutput()->GetLargestPossibleTemporalRegion();
  SizeValueType outputStart = outputLargestTempRegion.GetFrameStart();
  SizeValueType outputDuration = outputLargestTempRegion.GetFrameDuration();
  if (outputStart != 0)
    {
    std::cerr << "output's LargestPossibleTemporalRegion incorrect start. Got: "
      << outputStart << " Expected: 0" << std::endl;
    return EXIT_FAILURE;
    }
  if (outputDuration != numInputFrames - 1)
    {
    std::cerr << "output's LargestPossibleTemporalRegion incorrect duration. Got: "
      << outputDuration << " Expected: " << numInputFrames - 1 << std::endl;
    return EXIT_FAILURE;
    }

  // Go one frame at a time and check results
  OutputFrameType::IndexType checkPx;
  checkPx[0] = inputVideo->GetFrame(0)->GetLargestPossibleRegion().GetSize()[0] - 1;
  checkPx[1] = inputVideo->GetFrame(0)->GetLargestPossibleRegion().GetSize()[1] - 1;
  for (unsigned int i = outputStart; i < outputStart + outputDuration; ++i)
    {
    itk::TemporalRegion reqTempRegion;
    reqTempRegion.SetFrameStart(i);
    reqTempRegion.SetFrameDuration(1);
    filter->GetOutput()->SetRequestedTemporalRegion(reqTempRegion);
    filter->Update();

    // Check the results
    OutputPixelType expectedVal = (OutputPixelType)(i + (i+1))/2.0;
    OutputPixelType actualVal = filter->GetOutput()->GetFrame(i)->GetPixel(checkPx);
    double eps = 0.00001;
    if (expectedVal < actualVal - eps || expectedVal > actualVal + eps)
      {
      std::cerr << "Filter failed to compute frame " << i << " correctly over 2 frames." << std::endl;
      std::cerr << "Expected Pixel Val: " << expectedVal << std::endl;
      std::cerr << "Actual Pixel Val: " << actualVal << std::endl;
      return EXIT_FAILURE;
      }
    }

  //////
  // Test filter with average over 3 frames
  //////

  // Reset the filter
  filter = FilterType::New();
  filter->SetInput(inputVideo);
  filter->SetNumberOfFrames(3);
  filter->UpdateOutputInformation();

  // Make sure output largest possible temporal region is correct
  outputLargestTempRegion = filter->GetOutput()->GetLargestPossibleTemporalRegion();
  outputStart = outputLargestTempRegion.GetFrameStart();
  outputDuration = outputLargestTempRegion.GetFrameDuration();
  if (outputStart != 0)
    {
    std::cerr << "output's LargestPossibleTemporalRegion incorrect start. Got: "
      << outputStart << " Expected: 0" << std::endl;
    return EXIT_FAILURE;
    }
  if (outputDuration != numInputFrames - 2)
    {
    std::cerr << "output's LargestPossibleTemporalRegion incorrect duration. Got: "
      << outputDuration << " Expected: " << numInputFrames - 2 << std::endl;
    return EXIT_FAILURE;
    }

  // Get all the frames at once and check results
  filter->Update();
  for (unsigned int i = outputStart; i < outputStart + outputDuration; ++i)
    {
    OutputPixelType expectedVal = (OutputPixelType)(i + (i+1) + (i+2))/3.0;
    OutputPixelType actualVal = filter->GetOutput()->GetFrame(i)->GetPixel(checkPx);
    double eps = 0.00001;
    if (expectedVal < actualVal - eps || expectedVal > actualVal + eps)
      {
      std::cerr << "Filter failed to compute frame " << i << " correctly over 3 frames." << std::endl;
      std::cerr << "Expected Pixel Val: " << expectedVal << std::endl;
      std::cerr << "Actual Pixel Val: " << actualVal << std::endl;
      return EXIT_FAILURE;
      }

    }


  //////
  // Now test with reading from a file
  //////

  // Register FileListIO with the factory -- shouldn't have to do this. Needs fixing
  itk::ObjectFactoryBase::RegisterFactory( itk::FileListVideoIOFactory::New() );

  // Set up reader and writer
  typedef itk::VideoFileReader<InputVideoType> VideoReaderType;
  typedef itk::VideoFileWriter<InputVideoType> VideoWriterType;
  VideoReaderType::Pointer reader = VideoReaderType::New();
  VideoWriterType::Pointer writer = VideoWriterType::New();
  reader->SetFileName(argv[1]);
  writer->SetFileName(argv[2]);

  // Set up pipeline with 2 average filters each over 2 frames
  typedef itk::FrameAverageVideoFilter<InputVideoType, InputVideoType> FilterType2;
  FilterType2::Pointer avg1 = FilterType2::New();
  FilterType2::Pointer avg2 = FilterType2::New();
  avg1->SetNumberOfFrames(2);
  avg2->SetNumberOfFrames(2);

  avg1->SetInput(reader->GetOutput());
  avg2->SetInput(avg1->GetOutput());
  writer->SetInput(avg2->GetOutput());

  // Update the writer. This should process the entire video
  writer->Update();


  //////
  // Return successfully
  //////
  return EXIT_SUCCESS;
}