wavelet decomposition

8 次查看（过去 30 天）
Marios
Marios 2012-3-30
I have an image 480*640 and i want to use wavelet decomposition in order to produce 4 subimages within a small neighborhood window of size 9*9. how should i do that? do i have to use blocproc?
the code is:
I = imread('4.bmp');
[F1,F2] = wfilters('haar','d') [C,S] = wavedec2(I,2,F1,F2);
fs1 = appcoef2(C,S,'haar',1); fh1 = detcoef2('h',C,S,1); fv1 = detcoef2('v',C,S,1); fd1 = detcoef2('d',C,S,1);
fs2 = appcoef2(C,S,'haar',2); fh2 = detcoef2('h',C,S,2); fv2 = detcoef2('v',C,S,2); fd2 = detcoef2('d',C,S,2);
i want to do that in blocks 9*9
thanks in advance

请先登录，再回答此问题。

回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Image Analysis 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by