Among many methods to digital FM halftone process,the error diffusion algorithm is a very good one,but unfortunately it is computationally costly and uses much memory access.

• 在半色调处理的数字调频挂网处理方法中,误差扩散是一种效果非常好的算法,但是需要大量计算与存储器操作,处理速度是它广泛应用的主要瓶颈。