Digital BW, The Print

Hi Peter,

> > There's more to it than that.  You can increase the
> > number of available inks, which increases the number
> > of tones per unit area.  Or, you can decrease the area
> > and get the same number of tones...or some combination
> > there of.
>
>
> And in the original posting, which you have left out, I
> specified ALL those

Thanks, I'll go look at the original post.  The reason I only included one
part of the original post is that's all I saw.  My comments were made in
general (as I believe I clearly said), which is what I thought yours were as
well.

> - namely a paper surface area of one pixel at 300
> PPI, printer resolution of 2880 DPI, Black Only, and a dithering
> algorithm that allows the ability to distinguish two adjacent pixels
> at 300 PPI/

I'm not sure that makes any sense.  The Epson dithering algorithm starts by
resampling the image data you send it to either 360 or 720, depending on the
printer, so the algorithm is consistent no matter what image resolution you
send it is.  Point is, the number of tones per unit area done by the
dithering algorithm isn't based on your input PPI.

> > > > If you want more tones, you simply use more area.
> > >
> > > I.e., less resolution.
> >
> > How is using more area the same as less resolution?
>
> If the image resolution is 300 PPI and you average your dither over
> the area of 4 pixels (2 vertical, 2 horizontal) then you can no
> longer resolve those 4 pixels.

Hum (aside from that really doesn't answer my question).  That isn't how the
Epson printer dither algorithm works.  Do you understand/agree that the
Epson dithering algorithm resamples to 360 or 720 (720 in the case of the
2200 I believe, as it is considered a desktop)?  I believe we need to get
past that before trying to move on.

Additionally, are you saying you believe the Epson dither averages a 4 pixel
area?

Regards,

Austin