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. Author manuscript; available in PMC: 2009 Dec 30.
Published in final edited form as: IEEE Trans Image Process. 2008 Mar;17(3):283–300. doi: 10.1109/TIP.2007.915550

Fig. 6.

Fig. 6

(a) Combined frequency response of the filters obtained when the combined frequency response cutoff is set to Lc = 100. Note the sharper cutoff obtained. However, this is at the expense of ringing. (b) Plot of ringing versus cutoff frequency Lc. Ringing is defined to be the ratio of the second peak to the maximum peak at the lowest scale, a = 4. (a) Combined frequency response, Lc = 100. (b) Ringing versus Lc.