git.maemo.org Git - opencv/blob - interfaces/swig/octave/imagedata.i

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  41
  42
  43 // 2004-03-16, Gabriel Schreiber <schreiber@ient.rwth-aachen.de>
  44 //             Mark Asbach       <asbach@ient.rwth-aachen.de>
  45 //             Institute of Communications Engineering, RWTH Aachen University
  46
  47 // 2006-08-29  Roman Stanchak -- converted to use CvMat rather than IplImage
  48
  49
  50 %{
  51
  52 /// Accessor to convert a Octave string into the imageData.
  53 void CvMat_imageData_set(CvMat * self, octave_value object)
  54 {
  55   /*
  56   char* oct_string = OctString_AsString(object);
  57         int depth = CV_MAT_DEPTH(self->type);
  58         int cn = CV_MAT_CN(self->type);
  59
  60         if (depth == CV_8U && cn==3){
  61                 // RGB case
  62                 // The data is reordered beause OpenCV uses BGR instead of RGB
  63
  64                 for (long line = 0; line < self->rows; ++line)
  65                         for (long pixel = 0; pixel < self->cols; ++pixel)
  66                         {
  67                                 // In OpenCV the beginning of the lines are aligned
  68                                 // to 4 Bytes. So use step instead of cols.
  69                                 long position = line*self->step + pixel*3;
  70                                 long sourcepos = line*self->cols*3 + pixel*3;
  71                                 self->data.ptr[position  ] = oct_string[sourcepos+2];
  72                                 self->data.ptr[position+1] = oct_string[sourcepos+1];
  73                                 self->data.ptr[position+2] = oct_string[sourcepos  ];
  74                         }
  75         }
  76         else if (depth == CV_8U && cn==1)
  77         {
  78                 // Grayscale 8bit case
  79
  80                 for (long line = 0; line < self->rows; ++line)
  81                 {
  82                         // In OpenCV the beginning of the lines are aligned
  83                         // to 4 Bytes. So use step instead of cols.
  84                         memcpy
  85                                 (
  86                                  self->data.ptr + line*self->step,
  87                                  oct_string + line*self->cols,
  88                                  self->step
  89                                 );
  90                 }
  91         }
  92         else if ( depth == CV_32F )
  93         {
  94                 // float (32bit) case
  95                 for (long line = 0; line < self->rows; ++line)
  96                 {
  97                         // here we don not have to care about alignment as the Floats are
  98                         // as long as the alignment
  99                         memcpy
 100                                 (
 101                                  self->data.ptr + line*self->step,
 102                                  oct_string + line*self->cols*sizeof(float),
 103                                  self->step
 104                                 );
 105                 }
 106         }
 107         else if ( depth == CV_64F )
 108         {
 109                 // double (64bit) case
 110                 for (long line = 0; line < self->rows; ++line)
 111                 {
 112                         // here we don not have to care about alignment as the Floats are
 113                         // as long as the alignment
 114                         memcpy
 115                                 (
 116                                  self->data.ptr + line*self->step,
 117                                  oct_string + line*self->cols*sizeof(double),
 118                                  self->step
 119                                 );
 120                 }
 121         }
 122         else
 123         {
 124           // make some noise
 125           SendErrorToOctave (SWIG_TypeError,
 126                        "CvMat_imageData_set",
 127                        "cannot convert string data to this image format",
 128                        __FILE__, __LINE__, NULL);
 129         }
 130   */
 131 }
 132
 133 /// Accessor to convert the imageData into a Octave string.
 134 octave_value CvMat_imageData_get(CvMat * self)
 135 {
 136   /*
 137         if (!self->data.ptr)
 138         {
 139                 OctErr_SetString(OctExc_TypeError, "Data pointer of CvMat is NULL");
 140                 return NULL;
 141         }
 142         return OctString_FromStringAndSize((const char *)self->data.ptr, self->rows*self->step);
 143   */
 144   return octave_value();
 145 }
 146
 147 %}
 148
 149 // add virtual member variable to CvMat
 150 %extend CvMat {
 151         octave_value imageData;
 152 };