说明：  本代码实现了形态学细化。 特点：中间过程可以存储在输入中，因此节省存储空间；并且附有注解，便于理解；附有参考文献，有算法描述。This function implements the morphology thinning. Input pSrc is a float matrix in the range of [0, 1]. It supports in-place operation.Ref: Z. Guo and R. W. Hall, "Parallel Thinning with Two-Subiteration Algorithm"
(The code achieved a morphological thinning. Features: can be stored in between the process input, thus saving storage space and with comments, easy to understand with reference to literature, has described algorithm. This function implements the morphology thinning. Input pSrc is a float matrix in the range of [0, 1]. It supports in-place operation.Ref: Z. Guo and RW Hall, Parallel Thinning with Two-Subiteration Algorithm)