what is the scaling function on wavelet in the matlab?

3 visualizaciones (últimos 30 días)
mohammad ahmadzade
mohammad ahmadzade el 12 de Jun. de 2017
Respondida: Wayne King el 19 de Jun. de 2017
1

Iniciar sesión para responder a esta pregunta.

Respuestas (1)

Wayne King
Wayne King el 19 de Jun. de 2017
Hi Mohammad, I'm not sure this question is complete since you just wrote "1" in the body. The scaling function provides the low frequency (DC components) or very long scale representation of the signal (or image). Recall that a wavelet by definition has zero mean which means the Fourier transform at \omega = 0 (or whatever Fourier variable you like to use) is equal to zero. If you want to recover a DC shift in a signal or image, then you need the scaling function.

Categorías

Más información sobre Continuous Wavelet Transforms en Help Center y File Exchange.

Etiquetas

Community Treasure Hunt

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

Start Hunting!

Translated by