m. allan noah wrote: > On Dec 18, 2007 12:37 PM, Jonathan Buzzard <jonathan at buzzard.me.uk> wrote: >> On Tue, 2007-12-18 at 08:40 -0500, m. allan noah wrote: >>> On 12/18/07, Giuseppe Sacco <giuseppe at eppesuigoccas.homedns.org> wrote: >>>> Il giorno mar, 18/12/2007 alle 12.00 +0000, Jonathan Buzzard ha scritto: >>>>> On Tue, 2007-12-18 at 12:13 +0100, Giuseppe Sacco wrote: >>>> [...] >>>>>> So, my questions: is there already any standard for those action? Is >>>>>> there any defined rule for how to name a backend parameter like >>>>>> "--frame-number"? Is there any way to know what feeder types are >>>>>> available at a given time? >>>>> Good grief, those feelings of d?ja vu. are pretty strong at the moment. >>>>> >>>>> The basics are that as it stands the SANE standard is heavily geared to >>>>> transmission scanning on flatbed scanners. Understandable as it probably >>>>> accounts for 99% of users requirements. >>>> Is this problem "solved" with SANE2? >>> would both of you please excuse my ignorance, as i primarily deal with >>> ADF machines, but- >>> >>> why does the front-end need to be involved in the movement at all? can >>> the backend not detect the additional slides and move the feeder >>> automatically? perhaps i am not picturing the mechanism correctly... >>> >> Imagine I have just stuck an APS adaptor into my film scanner and loaded >> up a 40 frame APS film. I wish to scan *one* frame which I happen to >> know from the contact print I got when they where developed. >> >> How without the front end telling the scanner which frame to advance to >> and scan do you propose scanning this? From memory a TIFF image from an >> APS frame on my scanner is about 30MB and takes about 1min over 400Mbps >> Firewire. Scanning the lot is utterly impractical. >> >> With 35mm film, I load the strip into a holder and insert the holder. I >> want to scan just two frames from the possible six in the holder, and >> they are frame 2 and 4. Oh and I want to scan 4 first so that it is not >> sticking out the scanner with dust settling on it. >> >> Does that illustrate the point? > > yes- though i did have to lookup what APS was :) > > the original question was what to name the SANE options that would > control this mess, and i suppose what option type they should be. > sounds almost like a comma-separated list: > > 4,2 or 4,2-1 if you wanted to skip #3. that sounds a bit like the > gamma vector control that some backends use...
I would say more like selecting pages to print so 4,2 or 4,2,1 or 4-1 for frames 4 through 1. JAB. -- Jonathan A. Buzzard Email: jonathan (at) buzzard.me.uk Northumberland, United Kingdom. Tel: +44 1661-832195