/// <summary>
/// 行列とスカラーの乗算演算子。aの要素ごとにbをかけた結果をcvAddWeightedにより求める。
/// </summary>
/// <param name="a">行列</param>
/// <param name="b">スカラー</param>
/// <returns></returns>
#else
/// <summary>
/// Multiplicative operator (cvAddWeighted)
/// </summary>
/// <param name="a">matrix</param>
/// <param name="b">scalar</param>
/// <returns></returns>
#endif
public static CvSparseMat operator *(CvSparseMat a, Double b)
{
if (a == null)
{
throw new ArgumentNullException("a");
}
CvSparseMat result = a.Clone();
Cv.AddWeighted(a, b, a, 0, 0, result);
return(result);
}
/// <summary>
/// 行列の単項-演算子
/// </summary>
/// <param name="a">行列</param>
/// <returns></returns>
#else
/// <summary>
/// Unary negation operator
/// </summary>
/// <param name="a">matrix</param>
/// <returns></returns>
#endif
public static CvMatND operator -(CvMatND a)
{
if (a == null)
{
throw new ArgumentNullException("a");
}
CvMatND result = a.Clone();
Cv.AddWeighted(a, -1, a, 0, 0, result);
return(result);
}
/// <summary>
/// 行列とスカラーの除算演算子。aの要素ごとにbで割った結果をcvAddWeightedにより求める。
/// </summary>
/// <param name="a">行列</param>
/// <param name="b">スカラー</param>
/// <returns></returns>
#else
/// <summary>
/// Division operator (cvAddWeighted)
/// </summary>
/// <param name="a">matrix</param>
/// <param name="b">scalar</param>
/// <returns></returns>
#endif
public static CvSparseMat operator /(CvSparseMat a, double b)
{
if (a == null)
{
throw new ArgumentNullException("a");
}
if (b == 0)
{
throw new DivideByZeroException();
}
CvSparseMat result = a.Clone();
Cv.AddWeighted(a, 1.0 / b, a, 0, 0, result);
return(result);
}