opencv matrix 类型矩阵怎么计算逆矩阵

发布网友发布时间：2022-05-21 13:55

共1个回答

热心网友时间：2023-10-26 17:27

文档上的说明：
Mat::convertTo
Converts an array to another data type with optional scaling.

C++: void Mat::convertTo(OutputArray m, int rtype, double alpha=1, double beta=0 ) const
Parameters:
m – output matrix; if it does not have a proper size or type before the operation, it is reallocated.
rtype – desired output matrix type or, rather, the depth since the number of channels are the same as the input has; if rtype is negative, the output matrix will have the same type as the input.
alpha – optional scale factor.
beta – optional delta added to the scaled values.
The method converts source pixel values to the target data type.saturate_cast<> is applied at the end to avoid possible overflows:

用法：
Mat src, dst;
src.convertTo(dst, dstType)