--- /dev/null
+/*=========================================================================
+ *
+ * Copyright RTK 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.
+ *
+ *=========================================================================*/
+
+#define HEADER_INFO_SIZE 68
+
+// Based on a true story by the Nederlands Kanker Instituut (AVS_HEIMANN.CPP
+// from the 20090608)
+
+// Includes
+#include <fstream>
+#include "rtkHisImageIO.h"
+
+//--------------------------------------------------------------------
+// Read Image Information
+void rtk::HisImageIO::ReadImageInformation()
+{
+ // open file
+ std::ifstream file(m_FileName.c_str(), std::ios::in | std::ios::binary);
+
+ if ( file.fail() )
+ itkGenericExceptionMacro(<< "Could not open file (for reading): "
+ << m_FileName);
+
+ // read header
+ char header[HEADER_INFO_SIZE];
+ file.read(header, HEADER_INFO_SIZE);
+
+ if (header[0]!=0 || header[1]!=112 || header[2]!=68 || header[3]!=0) {
+ itkExceptionMacro(<< "rtk::HisImageIO::ReadImageInformation: file "
+ << m_FileName
+ << " not in Heimann HIS format version 100");
+ return;
+ }
+
+ int nrframes, type, ulx, uly, brx, bry;
+ m_HeaderSize = header[10] + (header[11]<<8);
+ ulx = header[12] + (header[13]<<8);
+ uly = header[14] + (header[15]<<8);
+ brx = header[16] + (header[17]<<8);
+ bry = header[18] + (header[19]<<8);
+ nrframes = header[20] + (header[21]<<8);
+ type = header[32] + (header[34]<<8);
+
+ switch(type)
+ {
+ case 4:
+ SetComponentType(itk::ImageIOBase::USHORT);
+ break;
+// case 8: SetComponentType(itk::ImageIOBase::INT); break;
+// case 16: SetComponentType(itk::ImageIOBase::FLOAT); break;
+// case 32: SetComponentType(itk::ImageIOBase::INT); break;
+ default:
+ SetComponentType(itk::ImageIOBase::USHORT);
+ break;
+ }
+
+ switch(nrframes)
+ {
+ case 1:
+ SetNumberOfDimensions(2);
+ break;
+ default:
+ SetNumberOfDimensions(3);
+ break;
+ }
+
+ SetDimensions(0, bry-uly+1);
+ SetDimensions(1, brx-ulx+1);
+ if (nrframes>1)
+ SetDimensions(2, nrframes);
+
+ SetSpacing(0, 409.6/GetDimensions(0) );
+ SetSpacing(1, 409.6/GetDimensions(1) );
+
+ SetOrigin(0, -0.5*(GetDimensions(0)-1)*GetSpacing(0) );
+ SetOrigin(1, -0.5*(GetDimensions(1)-1)*GetSpacing(1) );
+} ////
+
+//--------------------------------------------------------------------
+// Read Image Information
+bool rtk::HisImageIO::CanReadFile(const char* FileNameToRead)
+{
+ std::string filename(FileNameToRead);
+ const std::string::size_type it = filename.find_last_of( "." );
+ std::string fileExt( filename, it+1, filename.length() );
+
+ if (fileExt != std::string("his") )
+ return false;
+ return true;
+} ////
+
+//--------------------------------------------------------------------
+// Read Image Content
+void rtk::HisImageIO::Read(void * buffer)
+{
+ // open file
+ std::ifstream file(m_FileName.c_str(), std::ios::in | std::ios::binary);
+
+ if ( file.fail() )
+ itkGenericExceptionMacro(<< "Could not open file (for reading): " << m_FileName);
+
+ file.seekg(m_HeaderSize+HEADER_INFO_SIZE, std::ios::beg);
+ if ( file.fail() )
+ itkExceptionMacro(<<"File seek failed (His Read)");
+
+ file.read( (char*)buffer, GetImageSizeInBytes() );
+ if ( file.fail() )
+ itkExceptionMacro(<<"Read failed: Wanted "
+ << GetImageSizeInBytes()
+ << " bytes, but read "
+ << file.gcount() << " bytes. The current state is: "
+ << file.rdstate() );
+}
+
+//--------------------------------------------------------------------
+bool rtk::HisImageIO::CanWriteFile(const char* FileNameToWrite)
+{
+ return CanReadFile(FileNameToWrite);
+}
+
+//--------------------------------------------------------------------
+// Write Image
+void rtk::HisImageIO::Write(const void* buffer)
+{
+ std::ofstream file(m_FileName.c_str(), std::ios::out | std::ios::binary);
+
+ if ( file.fail() )
+ itkGenericExceptionMacro(<< "Could not open file (for writing): " << m_FileName);
+
+ m_HeaderSize = HEADER_INFO_SIZE + 32;
+ char szHeader[HEADER_INFO_SIZE + 32] = {
+ 0x00, 0x70, 0x44, 0x00, 0x64, 0x00, 0x64, 0x00, 0x20, 0x00, 0x20, 0x00, 0x01, 0x00, 0x01, 0x00,
+ 0x00, 0x04, 0x00, 0x04, 0x01, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6A, 0x18, 0x41,
+ 0x04, 0x00, 0x40, 0x5F, 0x48, 0x01, 0x40, 0x00, 0x86, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x08, 0x63, 0x13, 0x00, 0xE8, 0x51, 0x13, 0x00, 0x5C, 0xE7, 0x12, 0x00,
+ 0xFE, 0x2A, 0x49, 0x5F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00
+ };
+
+ /* Fill into the header the essentials
+ The 'iheader' in previous module is fixed to 0x20, and is included in szHeader.
+ The 'ulx' and 'uly' are fixed to 0x01, so that 'brx' and 'bry' reflect the dimensions of
+ the image.
+ */
+ const unsigned int ndim = GetNumberOfDimensions();
+ if ( (ndim < 2) || (ndim > 3) )
+ itkExceptionMacro( <<"Only 2D or 3D support");
+
+ szHeader[16] = (char)(GetDimensions(0) % 256); // X-size lsb
+ szHeader[17] = (char)(GetDimensions(0) / 256); // X-size msb
+ szHeader[18] = (char)(GetDimensions(1) % 256); // Y-size lsb
+ szHeader[19] = (char)(GetDimensions(1) / 256); // Y-size msb
+ if (ndim == 3) {
+ szHeader[20] = (char)(GetDimensions(0) % 256); // NbFrames lsb
+ szHeader[21] = (char)(GetDimensions(0) / 256); // NbFrames msb
+ }
+
+ switch (GetComponentType())
+ {
+ case itk::ImageIOBase::USHORT:
+ szHeader[32] = 4;
+ break;
+ //case AVS_TYPE_INTEGER:
+ // szHeader[32] = 8;
+ // break;
+ //case AVS_TYPE_REAL:
+ // szHeader[32] = 16;
+ // break;
+ default:
+ itkExceptionMacro(<< "Unsupported field type");
+ break;
+ }
+
+ file.write(szHeader, m_HeaderSize);
+ file.write( (const char *)buffer, GetImageSizeInBytes() );
+ file.close();
+} ////
git://git.creatis.insa-lyon.fr / clitk.git / blobdiff