From owner-freebsd-hackers Tue Apr 20 0:27: 2 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from labinfo.iet.unipi.it (labinfo.iet.unipi.it [131.114.9.5]) by hub.freebsd.org (Postfix) with SMTP id CD28614C1B for ; Tue, 20 Apr 1999 00:26:00 -0700 (PDT) (envelope-from luigi@labinfo.iet.unipi.it) Received: from localhost (luigi@localhost) by labinfo.iet.unipi.it (8.6.5/8.6.5) id HAA22712; Tue, 20 Apr 1999 07:07:27 +0200 From: Luigi Rizzo Message-Id: <199904200507.HAA22712@labinfo.iet.unipi.it> Subject: Re: Artec AS6E (was: Trying to get an HP Scanjet to work (again).) To: grog@lemis.com (Greg Lehey) Date: Tue, 20 Apr 1999 07:07:27 +0200 (MET DST) Cc: hackers@FreeBSD.ORG In-Reply-To: <19990420153336.A45522@lemis.com> from "Greg Lehey" at Apr 20, 99 03:33:17 pm X-Mailer: ELM [version 2.4 PL23] Content-Type: text Content-Length: 1601 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > i had to replace it with a parallel port Artec AS6E for which i > > managed to write a control program at > > > > http://www.iet.unipi.it/~luigi/ppscan990326.c > > > > the AS6E is very cheap, kind of poor quality but its data sheets are > > available... > > This looks great. I'm surprised nobody else has made any comments. > How well does it work? it just works, at the moment a bit slow and only in two modes (color and grey, 300dpi), and only with command line interface. I just did not have the time to clean up the code but don't see any major trouble with my program. This said, the scanner -- at least in the optical part -- is rather poor quality, nothing to share with the much nicer (until it worked) Scanjet (which, however, did cost me five times as much, plus a SCSI interface...). A major problem in this particular scanner is that the sensor is not a CCD but another thing called CIS which seems to have large variations of response from one pixel to the next, so the data straight from the scanner need a correction for every pixel. My driver does not do it at the moment but it is a simple thing. On why nobody commented... well, i am very bad at advertising my stuff! cheers luigi -----------------------------------+------------------------------------- Luigi RIZZO . EMAIL: luigi@iet.unipi.it . Dip. di Ing. dell'Informazione HTTP://www.iet.unipi.it/~luigi/ . Universita` di Pisa TEL/FAX: +39-050-568.533/522 . via Diotisalvi 2, 56126 PISA (Italy) -----------------------------------+------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message