In reply to @PaulaKrieg
@PaulaKrieg handwrote it! Roughly, (x,y) in the transformed image corresponds to (cos(x)*(y^10), sin(x)*(y^10)) in the original, ...
In reply to @christianp
@PaulaKrieg ... where x goes from 0 to 2*pi, and y goes from 0 to 1
In reply to @PaulaKrieg
@PaulaKrieg handwrote it! Roughly, (x,y) in the transformed image corresponds to (cos(x)*(y^10), sin(x)*(y^10)) in the original, ...
In reply to @christianp
@PaulaKrieg ... where x goes from 0 to 2*pi, and y goes from 0 to 1