Hang on then, if you're just notching out certain frequencies by painting over them in a 2D FFT could you do the same thing by treating the image like it was ra

Hang on then, if you're just notching out certain frequencies by painting over them in a 2D FFT could you do the same thing by treating the image like it was raster-scanned video and passing it through a notch filter at the Moiré frequency, or for that matter a comb filter? After all that's how you remove PAL subcarrier speckle from composite video.