[sane-devel] Multiple Scanner Support

[Joel]

Oh okay. That makes more sense. :-) I'm going to try Linux out more. Which distro do you use?

-- 
Joel
Sent with Sparrow (http://www.sparrowmailapp.com/?sig)

On Thursday, July 14, 2011 at 15:52, m. allan noah wrote:

> No, you re-write the pseudocode in a real programming language :) What
> I gave was something kinda like shell, which can be stored in a text
> file, made executable, and run directly. Not sure how that works on a
> mac...
> 
> allan
> 
> On Thu, Jul 14, 2011 at 9:35 AM, Joel <featheredtar at gmail.com (mailto:featheredtar at gmail.com)> wrote:
> > Neat. So far my experience with SANE is using it as a TWAIN plugin for Mac
> > OSX's Image Capture. The text based commands seem much better than the gaudy
> > manufacturer supplied GUIs though! Maybe I'll direct my future scanner
> > purchases to SANE supported scanners. Into which program(s) do I input the
> > pseudocode?
> > 
> > --
> > Joel
> > Sent with Sparrow
> > 
> > On Thursday, July 14, 2011 at 15:31, m. allan noah wrote:
> > 
> > Sane is very different from the GUI scanning you are used to. what you
> > want is as simple as this pseudocode:
> > 
> > while(1){
> > scanimage -d"devicename1" > directory1/`date +%s`.pnm
> > scanimage -d"devicename2" > directory2/`date +%s`.pnm
> > scanimage -d"devicename3" > directory3/`date +%s`.pnm
> > sleep(1200);
> > }
> > 
> > unfortunately, this only works if your scanners are supported. the
> > cs3200 and cs5600, not so much.
> > 
> > allan
> > 
> > On Wed, Jul 13, 2011 at 8:44 PM, Joel Penner <featheredtar at gmail.com (mailto:featheredtar at gmail.com)> wrote:
> > 
> > Thanks. Here I'm using a CanoScan 5600F (the Mac driver of which is kind of
> > unstable, and the shipped program horribly bloated!,) an Epson Perfection
> > V33 (a bad scanner!,) and a CanoScan 3200 (which I'm using with VueScan,
> > it's proven to be very stable.) At home I have another CS 5600F, two CS LiDE
> > 20s, a CS 5000, an Agfa Snapscan e20 and e50, and a really good Epson
> > scanner, the name of which I forget. I could VNC the computer to find out,
> > but I'm on my cell phone data connection right now...
> > The issue of resource hogging isn't common. So far I've only starkly
> > experienced it with the CS 5600Fs. It's unfortunate that such an amazing
> > scanner has to have such a shoddy Mac backend/driver. Hopefully the eventual
> > SANE backend will be better!
> > Similar to your idea, initially I tried running multiple instances of
> > VueScan, but because the specific scanners weren't specified to each
> > instance, they presumably conflicted, causing the different instances
> > to occasionally crash. How would one give explicit device names to each
> > copy? I am very comfortable with OS GUIs, but unfortunately have done almost
> > no programming.
> > - Joel
> > On Thu, Jul 14, 2011 at 2:05 AM, m. allan noah <kitno455 at gmail.com (mailto:kitno455 at gmail.com)> wrote:
> > 
> > Neat videos!
> > 
> > The answer to your question depends on the scanner, and the driver (we
> > call them backends).
> > 
> > 1. Some scanners are really dumb and require the host software to do
> > lots of processing to get a usable image. You could certainly stagger
> > the scans so that two scanners were never in use at the same time.
> > 
> > 2. Some backends are written to only talk to one scanner, and may not
> > play well if two scanners are open from within the same application.
> > It might be possible to avoid this by running multiple copies of the
> > app, and giving explicit device names to each copy.
> > 
> > What scanners are you using now?
> > 
> > allan
> > 
> > On Wed, Jul 13, 2011 at 7:53 PM, Joel Penner <featheredtar at gmail.com (mailto:featheredtar at gmail.com)>
> > wrote:
> > 
> > Hi. I'm currently using multiple scanners for a project where I have
> > flowers
> > scanned a few times an hour to make videos of the desiccation process.
> > I'm
> > currently in Germany where I've managed to get three scanners running
> > off of
> > one iBook, but at home I have eight scanners strewn across multiple old
> > computers. My original idea was to have all the scanners running off of
> > one
> > computer, but issues with drivers conflicting with each other in
> > addition to
> > poorly programmed drivers which use over half of the CPU's resources
> > while
> > scanning presented problems. I've been using the included software
> > packages
> > where possible, and VueScan when not. I've experimented a bit with SANE.
> > I
> > was wondering what people thought about the possibility of running
> > multiple
> > scanners off of one computer. Does SANE support this? And I've been
> > using
> > solely PPC Macs running either 10.4 or 10.5 so far.
> > You can find some videos of my project here:
> > 
> > http://www.flickr.com/photos/featheredtar/sets/72157611634807864/
> > Thanks,
> > Joel
> > --
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> > 
> > 
> > 
> > --
> > "The truth is an offense, but not a sin"
> > 
> > 
> > 
> > --
> > "The truth is an offense, but not a sin"
> 
> 
> 
> -- 
> "The truth is an offense, but not a sin"

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