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
|
/*=========================================================================
*
* 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 <fstream>
#include "itkImageFileReader.h"
#include "itkMetaImageIO.h"
#define SPECIFIC_IMAGEIO_MODULE_TEST
int itkMetaImageIOGzTest(int ac, char* av[])
{
if(ac < 2)
{
std::cerr << "Usage: itkMetaImageIOGzTest testDataDirectory"
<< std::endl;
}
int result(0);
std::cout << "Test whether MetaIO will search for a compressed data file"
<< std::endl
<< "if it can't find the uncompressed data file"
<< std::endl;
std::string headerName(av[1]);
headerName += "/GzTest.mhd";
std::ofstream hdr(headerName.c_str());
hdr << "ObjectType = Image" << std::endl
<< "NDims = 2" << std::endl
<< "DimSize = 32 32" << std::endl
<< "ElementType = MET_USHORT" << std::endl
<< "ElementDataFile = GzTest.raw" << std::endl;
hdr.close();
std::string dataName(av[1]);
dataName += "/GzTest.raw.gz";
gzFile compressed = gzopen(dataName.c_str(),"wb");
for(unsigned short i = 0; i < (32 * 32); i++)
{
unsigned short pixel = i & 0xff;
if( gzwrite(compressed,&pixel,sizeof(pixel)) != sizeof(pixel) )
{
std::cerr << "Write error for " << dataName << std::endl;
break;
}
}
gzclose(compressed);
typedef unsigned short PixelType;
typedef itk::Image<PixelType, 3> myImage;
itk::ImageFileReader<myImage>::Pointer reader
= itk::ImageFileReader<myImage>::New();
reader->SetFileName(headerName.c_str());
itk::MetaImageIO::Pointer io = itk::MetaImageIO::New();
reader->SetImageIO(io);
try
{
reader->Update();
}
catch (itk::ExceptionObject & e)
{
std::cerr << "exception in file reader " << std::endl;
std::cerr << e << std::endl;
result++;
}
std::cout << "Test whether absolute path in MetaIO header works" << std::endl;
// re-write header
headerName = av[1];
headerName += "/AbsPathTest.mhd";
std::ofstream hdr2(headerName.c_str());
hdr2 << "ObjectType = Image" << std::endl
<< "NDims = 2" << std::endl
<< "DimSize = 32 32" << std::endl
<< "ElementType = MET_USHORT" << std::endl
<< "CompressedData = True" << std::endl
<< "ElementDataFile = " << dataName
<< std::endl;
hdr2.close();
reader->SetFileName(headerName.c_str());
try
{
reader->Update();
}
catch (itk::ExceptionObject & e)
{
std::cerr << "Test failed " << std::endl;
std::cerr << e << std::endl;
result++;
}
return result == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
|
