地球物理专业，地震勘探方向。根据余弦子波公式，通过matlab成图，不同的衰减因子作对比-According to the cosine wavelet equation by matlab mapping, compare different attenuation factor

This Matlab/C code contains routines to perform level set image segmentation according to: (1) various multiphase (multiregion) formulations, including a fast scheme where the computation load grows linearly with the number of regions and,