Wavelet based interpolation

Question

How do I do Wavelet based interpolation (simple zero-padding scheme) in matlab?

I did wavedec2 on an image, and zeroize the vertical, horizontal and diagonal domains, interpolated the 4 domains to a larger size, but it did not outperform spatial based interpolators (bilinear, nearest, bicubic) as stated in several papers.

Please advise.

Thank you.

Answer 1

我不确定我是否理解您的问题，但是Matlab Pyramid Toolbox和Peter Kovesi的计算机视觉/图像处理功能具有许多小波函数，这些小波函数应该可以满足您的要求。