dwt2 function in OpenCV

asked 2014-08-11 17:22:50 -0600

Iona
41 ●1 ●5

Hello,

I have been wondering if there is a function in OpenCV which has the same functionality as dwt2 in Matlab? I have a grayscale image which I need to decompose into four subbands. Any help would be appreciated.

Thanks,

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hello, did you find any solution to this query?? I also want have LL subband of an image in opencv. can you help me?

reza5630 ( 2017-10-10 06:46:37 -0600 )edit

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answered 2014-08-12 03:10:22 -0600

Mathieu Barnachon

4678 ●18 ●53 http://www.math-barnac...

To the best of my knowledge, there is no 2D discrete wavelet transform. But you could easily find some implementation on the web (as well as libraries compatible with OpenCV). See this answer from stackoverflow for example.