https://www.darktable.org/2012/02/using-lowpass-filter-to-recover-shadows/
Using lowpass filter to recover shadows | darktable
Outdoor photographers are often confronted with unfavorable light conditions. This often entails too high contrast. Two of the most frequent consequences are...
lowpass filterusingrecovershadowsdarktable
https://www.mathworks.com/help/comm/ref/noisebw.html
noisebw - Equivalent noise bandwidth of digital lowpass filter - MATLAB
This MATLAB function returns the two-sided equivalent noise bandwidth of a digital lowpass filter in Hz.
equivalent noise bandwidthlowpass filterdigitalmatlab
https://www.mathworks.com/help/rfpcb/ug/stepped-impedance-maximally-flat-low-pass-filter-for-microwave-applications.html
Stepped Impedance Maximally Flat Lowpass Filter for Microwave Applications - MATLAB & Simulink
Comparison of S-parameters of simulated and lumped element stepped impedance low pass filter for X-band applications.
maximally flatlowpass filtermicrowave applicationssteppedimpedance
https://www.mathworks.com/help/dsp/ref/lowpassfirfilterdesign.html
Lowpass FIR Filter Design - Design lowpass FIR filter with tunable filter specifications - Simulink
Use the Lowpass FIR Filter Design block to design a lowpass FIR filter using the Hann, Hamming, Blackman, Blackman-Harris, Chebyshev, and Kaiser windowing...
fir filterlowpassdesignspecificationssimulink