曲线波变换用于图像去噪，它最重要的一种方法就是二代曲线波变换，其重要的一种算法是基于二维非均匀空间抽样算法-Curvelet transform for image denoising, a method which is the most important of the two generation of curvelet transform, an algorithm which is important sampling algorithm based on two-dimensiona