Impala Documentation

void Impala::Core::Feature::WriteKOEN1ToBuffer	(	Util::IOBuffer *	buffer,
		Matrix::Mat *	points,
		Matrix::Mat *	descriptors,
		String	theDataType
	)

Definition at line 88 of file PointDescriptorIO.h.

References ILOG_ERROR, ILOG_VAR, Impala::MakeString(), Impala::Core::Matrix::MatE(), Impala::Core::Matrix::MatNrCol(), Impala::Core::Matrix::MatNrRow(), and Impala::Util::IOBuffer::Write().

Referenced by Impala::Core::Feature::PointDescriptorTable::ExportToFile().

00089 {
00090     ILOG_VAR(Core.Feature.PointDescriptorIO.WriteKOEN1ToBuffer);
00091 
00092     using namespace Impala::Core::Matrix;    
00093     /* Format KOEN version 1.0
00094        -----------------------
00095        First line:  KOEN1 (format version)
00096        Second line: Descriptor dimensionality count (0 if only interest items)
00097        Third line:  Number of interest items
00098     */
00099     buffer->Write("KOEN1\n", 6);
00100     int elementsPerPoint = MatNrCol(points);
00101     int dimensionCount = 0;
00102     int pointCount = MatNrRow(points);
00103     int bytesPerElement = 8;
00104     
00105     if(descriptors)
00106     {
00107         if(MatNrRow(descriptors) > 0)
00108         {
00109             dimensionCount = MatNrCol(descriptors);
00110             if(MatNrRow(descriptors) != pointCount)
00111             {
00112                 ILOG_ERROR("Dimension mismatch in points/descriptors: " << 
00113                            pointCount << " " << MatNrRow(descriptors));
00114             }
00115         }
00116     }
00117     
00118     String tmp = MakeString(dimensionCount) + "\n" + MakeString(pointCount) + "\n";
00119     buffer->Write(tmp.c_str(), tmp.size());
00120 
00121     for(int i = 0; i < pointCount; i++)
00122     {
00123         String line = "<" + theDataType;
00124         for(int j = 0; j < elementsPerPoint; j++)
00125         {
00126             line += " " + MakeString(*MatE(points, i, j));
00127         }
00128         line += ">;";
00129         if(dimensionCount)
00130         {
00131             for(int j = 0; j < dimensionCount; j++)
00132             {
00133                 line += " " + MakeString(*MatE(descriptors, i, j));
00134             }
00135         }
00136         line += ";\n";
00137         
00138         buffer->Write(line.c_str(), line.size());
00139     }
00140 }

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