C++ (Cpp) VALUE_TO_CVSCALAR Exemples

Exemple #1

Fichier : cvscalar.cpp Projet : Wenackles/ruby-opencv

/*
 * call-seq:
 *   sub(val[,mask])
 *
 * Return new CvScalar if <i>val</i> is CvScalar or compatible object.
 *   self[I] - val[I]
 * Or return new CvMat if <i>val</i> is CvMat or subclass.
 */
VALUE
rb_sub(int argc, VALUE *argv, VALUE self)
{
  VALUE val, mask;
  rb_scan_args(argc, argv, "11", &val, &mask);
  if (rb_obj_is_kind_of(val, cCvMat::rb_class())) {
    CvArr *val_ptr = CVARR(val);
    VALUE dest = Qnil;
    try {
      dest = cCvMat::new_object(cvGetSize(val_ptr), cvGetElemType(val_ptr));
      cvSubRS(val_ptr, *CVSCALAR(self), CVARR(dest), MASK(mask));
    }
    catch (cv::Exception& e) {
      raise_cverror(e);
    }
    return dest;
  }
  else {
    CvScalar *src = CVSCALAR(self);
    CvScalar scl = VALUE_TO_CVSCALAR(val);
    return new_object(cvScalar(src->val[0] - scl.val[0],
                               src->val[1] - scl.val[1],
                               src->val[2] - scl.val[2],
                               src->val[3] - scl.val[3]));
  }
}

Exemple #2

Fichier : cvscalar.cpp Projet : thenoseman/ruby-opencv

/*
 * call-seq:
 *   sub(val[,mask])
 *
 * Return new CvScalar if <i>val</i> is CvScalar or compatible object.
 *   self[I] - val[I]
 * Or return new CvMat if <i>val</i> is CvMat or subclass.
 */
VALUE
rb_sub(int argc, VALUE *argv, VALUE self)
{
  VALUE val, mask;
  rb_scan_args(argc, argv, "11", &val, &mask);
  if(rb_obj_is_kind_of(val, cCvMat::rb_class())){
    VALUE dest = cCvMat::new_object(cvGetSize(CVARR(val)), cvGetElemType(CVARR(val)));
    cvSubRS(CVARR(val), *CVSCALAR(self), CVARR(dest), MASK(mask));
    return dest;
  }else{
    CvScalar *src = CVSCALAR(self), scl = VALUE_TO_CVSCALAR(val);
    return new_object(cvScalar(src->val[0] - scl.val[0],
                               src->val[1] - scl.val[1],
                               src->val[2] - scl.val[2],
                               src->val[3] - scl.val[3]));
  }
}