Digital BW, The Print

Austin,

Finally got round to querying you on this! Surely Nearest Neighbour
interpolation just duplicates pixels (or should I say quadruplicates?). And,
according to Kennedy McEwan, the Epson driver interpolates up or down to 720
ppi for desktop Epsons (360 ppi for large Epsons) by nearest neighbour
interpolation. Which is why QImage claims to produce better prints by
interpolating up to 720 ppi at print time using Lanczos interpolation, thus
avoiding the nearest neighbour interpolation in the Epson driver.

Bob Frost.

----- Original Message -----
From: "Austin Franklin" <darkroom@...>
>
> Only bad interpolation duplicated pixels...  I'd be hard pressed to
believe
> any of the interpolation methods used in the printer drivers or PS do any
> pixel duplication.