4.6. Summary of four types of low-pass fllter: Butterworth, Chebyshev type I, Chebyshev type II and Cauer – Digital Filters Design for Signal and Image Processing

4.6. Summary of four types of low-pass fllter: Butterworth, Chebyshev type I, Chebyshev type II and Cauer

Let us look again at the attenuation formulae:

We present four important types of filters in the following table: