On Fri, 2008-04-04 at 21:06 +0200, Ralph D. Ungermann wrote: > Gerard Klaver wrote: > > On Thu, 2008-04-03 at 14:56 +0200, Ralph D. Ungermann wrote: Hello > > Ralph, > > > > I am the maintainer of the teco2 backend, if you have a link (or send > > a zip file with data to mailbox) to your backend i can have a look > > and add improvements to the teco2 backend. > > Hello Gerard, > > nice to meet you! I'll send you my sources ASAP. I hope, you'll like my > resource management: > > - sane_init() doesn't open every device at startup > - no device needs to allocate a 64KB scsi buffer > - sane_read() doesn't wait for the whole image to be read > - sane_read() polls for `cancel' > > While the device handling issues aren't so important on a desktop with a > single scanner, the `no-wait' and `cancel' things have been major pain > reliefs for me. > > And most surely you will like my color scans: my scanner just tells me, > _which_ color it has sent; hence no more sophisticated guessing > algorithms, no more huge color permutation tables, and no more > restrictions to preselected resolutions. Just pick a line, and if the > scanner says `red', distribute it to the red bytes. > > This change would save you many hundred lines of code. Unfortunately, > you can't call this an `obvious bug fix'. So don't do it, unless you > can test it for all supported scanners. > > Here is my offer: you tell me, which scanner models you have your hands > on. Then I can try to include one of them into my backend. If we're > lucky, it'll work, and we can build an enhanced new backend at least for > the scanners we own, leaving the old drivers untouched. > > -- ralph > > >
I still own the Relisys Scorpio Super 3 VM3575 and the PRIMAX JEWEL 4800 VM356A For the VM3575 the color line sequence was different depending on the resolution of the scan, see also my gkall.hobby.nl/notes1.html page for some test images. So if there is scanner information which color is send, it would make things a lot easier. Just for information, one old testreport for the vm3575 http://gkall.hobby.nl/testreport-vm3575-2.html -- -------- m.vr.gr. Gerard Klaver
