# Integer Wavelet with Only Positive coefficients

Is there any Integer Wavelet Transform which produce only positive coefficients?
Currently i'm using Haar wavelet but it produces both positive and negative coefficients.

• What is the meaning of producing? – Laurent Duval Jan 24 '18 at 22:19

For wavelet coefficients from data, no, because of linearity: if for some $x$, $W(x)$ is positive, then $W(-x)=-W(x)$ is negative.