Mailinglist Archives:
Infrared
Panorama
Photo-3D
Tech-3D
Sell-3D
MF3D

Notice
This mailinglist archive is frozen since May 2001, i.e. it will stay online but will not be updated.
<-- Date Index --> <-- Thread Index --> [Author Index]

Re: hi end scanner/ DPI Numbers

  • From: WDAVID <WDAVID@xxxxxxxxxxx>
  • Subject: Re: hi end scanner/ DPI Numbers
  • Date: Sun, 14 Mar 1999 19:46:10 -0800
> << MicroTek claims 1000X2000 dpi with interpolated resolution of 8000
>  X 8000. >>
> 
> Where do you think they get the rectangular pixels?

Scanning head probably has 1,000 sensors/scanned inch.  By stepping the
head at 1/2 the sensor pitch rate provides 2,000 captures/inch...

> Has anybody seen a rectangular pixel?

Yep. Try looking at a 300x300 dpi scan on a 640x400 screen.  Images
looks vertically stretched.

> I must be mistaken about something...???

Just tha scan resolution and screen resolution have completely different
meanings.

-- 

Best regards,
W. David Schwaderer

http://www.amazon.com/exec/obidos/Author=Schwaderer%2C%20W.%20David/002-5596264-0325832