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| View Original: | Lanczos-windows.svg (300x200) | |||
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| Keywords: Lanczos-windows.svg Lanczos windows for 3 different scales 1 2 and 3 Self-made in gnuplot gnuplot 2009-04-14 Nils R Barth gnuplot source <source lang gnuplot > Graphs of Lanczos window Central lobe of normalized sinc scaled to different widths Set terminal set terminal svg enhanced size 300 200 fs 10 set samples 1001 high quality set border 31 linewidth 3 thin border set output lanczos-windows svg Ranges set xrange -3 3 Widest window is -3 to 3 set xtics 5 Accords with existing graphs provides scale set yrange - 1 1 1 Slight headroom from max of 1 set ytics 2 Accords with existing graphs Zero axes as guidelines no key self-explanatory set zeroaxis unset key Define and plot function sinc x sin pi x / pi x Normalized sinc set parametric Parametric to provide alt ranges plot t -1 1 t sinc t \ 2 t sinc t \ 3 t sinc t </source> Window function Lanczos filters Images with Gnuplot source code | ||||
