dwt function in matlab

Hi everyone!

example: [ca,cd] = dwt(x,"db"), db1, db2, db3... what is it? in matlab is'nt deltail, so i dont understand. Can you help me?

Thank you!

Answer 1

[nl2605]

There are many different filters to perform wavelet transformation. Like Haar, Debaucheis. This db1 etc corresponds to these different filters. You should read more on this.