[sane-devel] Error on Canon CanoScanLiDE20
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
> for( tmp = usbDevs; tmp; ) {
> tmp = usbDevs->next;
> free( usbDevs );
> usbDevs = tmp;
> }
should that not be
tmp = usbDevs;
while(tmp) {
...
}
??
Why use a for loop without an increment/decrement condition??
- --
Steve Welsh
/
You know, nostalgia is not what it used to be
/
Public Key http://www.stevew.net/public.asc
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[sane-devel] Error on Canon CanoScanLiDE20
Hi,
On Wednesday 08 June 2005 21:46, Steven Palm wrote:
>
> On Jun 8, 2005, at 1:30 PM, Gerhard Jaeger wrote:
> > On Wednesday 08 June 2005 18:35, Steven Palm wrote:
> >
> >> scanimage(12019) malloc: *** error for object 0x303fe0: double free
> >> scanimage(12019) malloc: *** set a breakpoint in szone_error to debug
>
> >>
> >> Is this a known issue, or something unique perhaps to MacOS X ?
> >>
> >
> > In the meantime, it is ;)
> > Mattias Ellert already informed me about that issue, although it's
> > currently not clear, where it comes from.
>
> Well, if I change the cleanup code for usbDevs in sane_exit() from:
>
> for( tmp = usbDevs; tmp; tmp = usbDevs->next ) {
> free( usbDevs );
> usbDevs = tmp;
> }
>
> to:
>
> for( tmp = usbDevs; tmp; ) {
> tmp = usbDevs->next;
> free( usbDevs );
> usbDevs = tmp;
> }
>
> It eliminates the double-free malloc error, so the backend runs
> cleanly without the error.
Hmmm, guess you are correct, as in my code, the address of usbDevs is
dereferenced after being freed :( That's done in the for() loop.
I also guess, that this is the cause of a long searched memory leak AND
highly system dependent, as here on my Linux box I couldn't trigger that.
The better code should be:
while( usbDevs ) {
tmp = usbDevs->next;
free(usbDevs);
usbDevs = tmp;
}
I'll change that - thanks for investigating...
>
> However, instead of scanning the whole page I get just a small
> corner. I wonder if endian issues are at play here with the image
> size the scanner is told to scan?
If you simply call scanimage to scan, the default vals will
be used and these are only some mm of the whole area...
Ciao,
Gerhard
[sane-devel] CanoScan3000F init/button scan reg/val recognizable?
Quick cleanup of the usbsnoop-3000f-plugin.log (URBs 6-151+) turned into registers and values: Action Reg Val Note 0x83 Write 0x920x00 0x83 Write 0xcf0x00 0x83 Write 0xa30x10 0x83 Write 0xa10x3f 0x83 Write 0x970x0a 0x84 Read 0x8b0x5f 0x84 Read 0x8b0x5f 0x83 Write 0x970x0f 0x84 Read 0x8b0xc30x8e reports twice, second with val=3D0x00?!? 0x8c BlindWrite 0x04 0x8c BlindWrite 0x00 0x8c BlindWrite 0x04 0x8c BlindWrite 0x00 0x8c BlindWrite 0x04 0x8c BlindWrite 0x00 0x8c BlindWrite 0x04 0x8c BlindWrite 0x00 0x8c BlindWrite 0x04 0x8c BlindWrite 0x00 0x83 Write 0x970x00 0x83 Write 0x0f0x92 0x60 0x84 Read 0x8b0xc3 0x83 BlindWrite 0x92 0x60 0x84 Read 0x8b0xc3 0x83 BlindWrite 0x92 0x00 0x83 BlindWrite 0x97 0x00 0x83 BlindWrite 0xa8 0x80 0x83 0x20 0x85 0x50 0x83 BlindWrite 0x83 0x00 0x85 0xc3 0x93 0x80 0x83 BlindWrite 0xa8 0x18 0x8c BlindWrite 0x02 0x8c BlindWrite 0x000x8e reports twice, second with val=3D0x00?!? 0x83 Write 0x920x00 0x83 Write 0xcf0x00 0x83 Write 0xa30x10 0x83 Write 0xa10x3f 0x83 Write 0x970x0a 0x84 Read 0x8b0x5f 0x83 Write 0x970x0f 0x84 Read 0x8b0xc30x8e reports twice, second with val=3D0x00?!? 0x83 Write 0x920x00 0x83 Write 0xcf0x00 0x83 Write 0xa30x10 0x83 Write 0xa10x3f 0x83 Write 0x970x0a 0x84 Read 0x8b0x5f 0x83 Write 0x970x0f 0x84 Read 0x8b0xc30x8e reports twice, second with val=3D0x00?!? ... After each line the is a USB like this: 0x8e Read 0x01 That is obviously USB's common acknowledge signal? After that there's a continuous loop that is obviously front button scan/= check? So the 0x92 ... 0x8b+0x8e=3D0x00 is the loop for the init and standby rou= tine? And until those "BlindWrite"s end, that's the init of the scanner? So as there are so much questionmarks (and names like those "BlindWrite" steps that are just my own wrong name for them I came up with), maybe I should leech a USB specification docs for more close info, or could someo= ne tell me what to do next (except for clearing up actual scanned image logs= )... So what to do next, as I haven't yet found what backend is the closest on= e to massage for a quick-fix testing? -- amth
[sane-devel] Bug in snapscan or sane network protocolo?
Hi all, I am using an EPSON Perfection 1670 over the network, via saned, and I just found a problem. Basically I do a scan of 210.0x297.0mm, using a 200dpi resolution. Prior to scan I call get_parameters and receive an *estimated* values for lines, pixelsperline, bytesperline; after receiving this data I receive the frame data. The problem is that get_parameters says: [snapscan] sane_snapscan_get_parameters (0x8090aa8, 0xbc24) [snapscan] sane_snapscan_get_parameters: Using estimated data [snapscan] sane_snapscan_get_parameters: depth = 8 [snapscan] sane_snapscan_get_parameters: lines = 2338 [snapscan] sane_snapscan_get_parameters: pixels per line = 1653 [snapscan] sane_snapscan_get_parameters: bytes per line = 4959 while, when scanning, I get a different amount of data: [snapscan] inquiry: exposure time: 4.6 ms [snapscan] inquiry: ms per line: 4.60 [snapscan] inquiry: G2R_DIFF: 131 [snapscan] inquiry: B2R_DIFF: 134 [snapscan] inquiry: Chroma offsets=6; Red=6, Green:=3, Blue=0 [snapscan] inquiry: hardware config = 0xbd [snapscan] inquiry: bits per pixel = 14 [snapscan] inquiry: pixels per scan line = 1652 [snapscan] inquiry: bytes per scan line = 4956 [snapscan] inquiry: number of scan lines = 2338 [snapscan] inquiry: effective buffer size = 64428 bytes, 27 lines [snapscan] inquiry: expected total scan data: 11616864 bytes [snapscan] sane_snapscan_start: after measuring speed: 4956 bytes per scan line 4.60 milliseconds per scan line. ==>1077.391327 bytes per millisecond [snapscan] scan As you may notice, the "pixel per line" value changed. So when I try to create the image I have less data than expected. I see two possible options: 1. Change the snapscan algorithm to have better supposed values 2. Change the sane network protocol in order to get all corrected parameter *with* or *after* the scanned data. Any comment? Giuseppe
[sane-devel] Scanning Time Question
Hi, Approaching 15000 pictures 35mm I wish to know, for those who already have the scanner (I am thinking to purchase a Nikon LS 4000 or LS 5000) how is the scanning process. I explain better: If I say I have 50 pictures to scan, how do you handle the scanning process? Is it possible to scan x number of pictures, holding them in memory and then save them to the disk all at once or do I have to scan and save, scan and save? I am trying to understand what is that I will be faced with. I am also trying to figure out how much time it will take for me to scan pictures, and am trying to figure out how to standardize the process of manually scanning all these pictures. I know that scanning time depends on the depth of the scanned picture. But is there a table that shows based on the depth of color and bits what is the time needed for the device to scan and save? Thank you, Spiro
[sane-devel] scanimage looks for the wrong libs
Hi, On Tue, Jun 07, 2005 at 09:21:39AM +0200, Antoine Jacoutot wrote: > I'm in the process of making a sane-backends port to OpenBSD. At least about a year ago, I could build sane-backends on OpenBSD without any changes (and I could actually scan something). As far as I know, nothing has changed in sane-backends concerning library loading since then. Maybe a change in libtool? Do you use the libtool that comes with SANE or a different one? Which was the last version of sane-backends that worked? There is a now commented out part in the install traget of backend/Makefile.in that was used for creating links. However, it hasn't been used since 2 years: | revision 1.75 | date: 2003/04/30 23:05:45; author: hmg; state: Exp; lines: +17 -17 | Disable manual links for shared libraries. This breaks MacOS X and | doesn't seem to be necessary on other platforms any more. > So far, I encountered only one problem. > When starting scanimage with DEBUG, I can see that it is looking for > *.so.1.15 libs (ie : libsane-epson.so.1.15). The dll backend looks for *.so.1 as far as I can see. > The thing is, this lib does > not exist, but *.so.1 (ie : libsane-epson.so.1) exists. I can > rename/symlink those libs so they end with 1 instead of 1.15 and it > works, but it's not a great solution. The symlinking should be done by libtool. > How can I either make scanimage look for the right libs or make libtool > (or other) install the libs with the correct name ? scanimage itsself doesn't llok for any backends. Usually it's linked statically or linked to the shared libsane-dll backend. The dll backend then loads dynamically the other backends. Bye, Henning
[sane-devel] Scanning Time Question
--=-hoVIH9nrX2io8lBFh1mw Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Thu, 2005-06-09 at 12:22 +0200, Spiro Angeli wrote: > Approaching 15000 pictures 35mm I wish to know,=20 Wow :) > for those who already have the=20 > scanner (I am thinking to purchase a Nikon LS 4000 or LS 5000) how is the= =20 > scanning process. the LS5000 isn't currently supported by sane. > If I say I have 50 pictures to scan, how do you handle the scanning proce= ss?=20 > Is it possible to scan x number of pictures, holding them in memory and t= hen=20 > save them to the disk all at once or do I have to scan and save, scan and= =20 > save? You'll probably want to write a script/program that scans an image and saves it to disk while the next one scans. That way, you don't need gigs of memory but the scanner need not wait for the disk, nor the other way around. An image scanned with the LS5000 would probably approach 60megs or so. > I am trying to understand what is that I will be faced with. I am also tr= ying=20 > to figure out how much time it will take for me to scan pictures, and am=20 > trying to figure out how to standardize the process of manually scanning = all=20 > these pictures. In what format are they? slides? negatives? > I know that scanning time depends on the depth of the scanned picture. Bu= t is=20 > there a table that shows based on the depth of color and bits what is the= =20 > time needed for the device to scan and save? There's a table here: http://filmscanner.info/NikonSuperCoolscan5000ED.html Scroll down all the way to the bottom, then up until you hit the tables. Just a few things: 'ohne' =3D without, 'mit' =3D with, 'Bild'=3Dpicture, 'Bilder'=3Dpictures, 'Stunde' =3D hour, 'Dia' =3D slide, 'Stapel'=3Dbatch, 'Vorschau'=3Dpreview, 'Einzel'=3Dsingle, 'Belichtung'=3Dexposure. (Now you should be able to understand the tables) johannes --=-hoVIH9nrX2io8lBFh1mw Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -BEGIN PGP SIGNATURE- Comment: Johannes Berg (SIP Solutions) iQIVAwUAQqh8dKVg1VMiehFYAQKLuRAAtms36cICrrnV5eQW6U2VVMTnzhisFuOd o7bhMffpBNTIwXMz/YmO5w+b/qVhf8zG6w03LBQoPMr/yMoUERMvjLLHk4NrCkZj iktWWIgdktkZTYHUWymXl+CL4j6tz2EJ12MFP/EgxeiqW81HQhrfPziu5JpQcWxu 1nEXSfCWKVe0/gfozXof4z8Eef7sjR/MjuI03eqgHOyMS7+LDPmjVaTV5UNnl0t+ i2fapY8XYjbfY+TQ+5ydKpGqoUrquzG8MizHQcIZZGkEkyfXwHhxeU7L366Av8Aj SpilcwuwtdlEHrnPKRCKaaK5XogBYHwIIQ9H4t5pird+NyBS89uNSzgsm097xusv J806qGS6nfID8nGaf9muncJOweHPjWCtDMy7IMscqcfqsJa14LuXHHSO9J05HL1f qTDjwq3WJWRtmaEwO9/oG5dPm0Xz7c+6ze3S4AzqpaIBl/FoF2CzGz7IXD9VwML3 EHSfdyc3nDH7e/7ASmVvpj5SMaTtU7fpkDVYn/lc2NAdn7Uoj2jJL1MkvolLs5Cn 7nrJdpnpp6rl2QSjkpoaZ519pLs2tEIIajKG9ipezoHZ6UkpTlRe2yksyBAMkz+6 EzU9uCOs88kOt9U33fgs9PDFnYmRg9AbLsTxTYcjnWuzb5ekd32jm+LBNg7m81h1 VTGrDEq/bHU= =22GK -END PGP SIGNATURE- --=-hoVIH9nrX2io8lBFh1mw--
[sane-devel] Failed to open device `snapscan:libusb:002:002': Error during device I/O
Hi, On Wed, Jun 08, 2005 at 11:30:03AM -0400, Mauricio Hernandez wrote: > [snapscan] add_usb_device: Detected (kind of) an USB device > [snapscan] snapscani_usb_open(libusb:002:002) > [snapscan] snapscani_usb_open: Can't get semaphore Uhh. Looks like semget failed. Maybe you can get more details when running scanimage by strace and searching for "semget"? Bye, Henning
[sane-devel] Bug in snapscan or sane network protocolo?
Hi, On Thu, Jun 09, 2005 at 04:47:05PM +0200, Giuseppe Sacco wrote: > Basically I do a scan of 210.0x297.0mm, using a 200dpi resolution. > Prior to scan I call get_parameters and receive an *estimated* values > for lines, pixelsperline, bytesperline; after receiving this data I > receive the frame data. Which frontend do you use? > while, when scanning, I get a different amount of data: This is perfectly legal (see SANE standard). The normal way is: sane_get_parameters (returns estimated values) sane_start sane_get_parameters (returns exact parameters) --> malloc memory for image, ... > I see two possible options: > > 1. Change the snapscan algorithm to have better supposed values If snapscan doesn't return the correct parameters after sane_start, it's broken. But I'd be very surprised if that were the case as that would break all frontends. > 2. Change the sane network protocol in order to get all corrected >parameter *with* or *after* the scanned data. I haven't checked that but you can get the parameters after running sane_start, can't you? You can test the behaviour of frontends concerning the estimated parameters with the "test" backend (use option "fuzzy parameters"). Bye, Henning
[sane-devel] Scanning Time Question]
--=-AVo7SEvfXqtm8421c6eX Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Hi, > Pictures are all 35mm of set of 4 per negative. They are not ( unfortunat= ely )=20 > on a roll. So they're in strips? That sucks. You're in for quite a bit of strip changing then. > As for application, because I am unable to run Nikon original software un= der=20 > Gentoo Linux, I was thinking of http://www.hamrick.com/ VueScan as offer= ing=20 > the same and more features than what Nicon offers. Do you know anything a= bout=20 > this or do you think gimps would be fine? Anything else to advice as=20 > application? I thought you were going to use SANE. Then you don't need vuescan. > As for format, I do not know yet. I assume it will be either jpeg or tiff= . I=20 > think jpeg with a good resolution would be sufficient. It is not only for= =20 > displaying on the monitor but also for prints. They have told me that=20 > nowadays, even a jpeg can be a good graphic format as long as it is well=20 > scanned. > As for space, once I decided the file format and the compression I can fi= gure=20 > out how much disk space I will need. Yeah, whatever. You don't want to keep 20 images in memory though :) > I like a lot the idea of the script that in the background while scanning= the=20 > next picture save the previous one. Should be fairly easy. Trivial, however, is scanning,saving,scanning,saving, > Summing up, as of now, I have the idea of purchasing the Nikon 4000, with= =20 > slides accessory (as I also have 300 slides) and perhaps VueScan software= . If you get the 4000 with the slides accessory you'll probably be able to just scan from the command line and write a script to advance to the next slide, scan, save it, (or use scanadf maybe). > There is a new Epson scanner PhotoPC F-3200 which I do not know well but = it=20 > does not show up in the compatibility list.=20 No idea. > Do you know if VueScan still needs SANE as backend? No idea. > LAST QUESTION: Any time I have to submit/reply an email, I mail it, it ge= st on=20 > hold, and then it is sent to the mailing list. Is there a way to eliminat= e=20 > the hold process, so that when I need help, I just write to=20 > sane-devel@lists.alioth.debian.org and it gets posted? Subscribe to the list. johannes --=-AVo7SEvfXqtm8421c6eX Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -BEGIN PGP SIGNATURE- Comment: Johannes Berg (SIP Solutions) iQIVAwUAQqiTlKVg1VMiehFYAQL/Cg//f/FTS5865vivhLcVECdm2BGOEyv72oDU Sf3D7W1Di+pJwzWxUx9oQKakFw4cHI3K9JaHq5sO2ZxcMmQAQA4JxvY4j2caVl4H +ZR7fXo0q9Avi2ncTjRd/kHfvpD+VlXvgztkYbXB5uDE2Ne7nKC//KNM8bm7knxH ud6WOP+ZZ570yKKd8G8sEy0tAx2AEVt8Xk2TUI54+TkAB9LJwF9wXKDJIFEMFEsU sD6cCwk8k2io46ChM46DTuoHo7NGQRw8x91X9y1wlG15i1QuNqE6MfQENOHXberp XkgnTiQWQ6bWqOGcrGhrpgt6P+sU8l6b7qexvAlIzkXc+ExnPQGs2hNeLWrhDEi+ v69XtI3kJot1k3B0+xx4ungZl0SO1uWH+tIVjqQHK9Kw/LGAGQzM6+JwTj5Sv7DM EeT26BpCkzQqo/dIXnZGAlmyJ6cR9J/8ddutqAtpNvLCpqtBJHfeZ25I6tdizniZ PNtWlIj4R5BjnhysEF7yQqqjt6LRI3WhCfKJ+6LzfoiX0R1QjiVg/35wXBTQMzU8 b+3FYxDYPfSmYNUUp7S3u/FmbliN0TG1y6EjpM431qmfaEvzSJaYCxzFnGVZhrec lGE8eSeKwZAIiXWrNhWbwbXwnbcRwcOxP/dz3H1mo+fmqGQZR8MQ7z3iHo3pf0cS hC9zWHnjtKU= =R/X/ -END PGP SIGNATURE- --=-AVo7SEvfXqtm8421c6eX--
[sane-devel] Scanning Time Question]]
--=-FWC4exitATKR8YvzoVOf Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Hi, > I did subscribe to sane-devel@lists.alioth.debian.org All I do is new ema= il=20 > and send it to: sane-devel@lists.alioth.debian.org > Is this correct? If so, yes I am still getting the [Your message to=20 > sane-devel awaits moderator approval] > Please help me clarify this issue. Oh, sorry. Then the list's server doesn't like you for some reason. But I don't know why, the list admin might see it. > > I thought you were going to use SANE. Then you don't need vuescan. > So basically, SANE is the back end. Correct? Then as front end what will = I=20 > use? I believe I was referring to VueScan as front-end. Please clarify th= is=20 > for me if I have a wrong understanding of SANE. sane is the backend, yeah, but you want to use a script or a program sane has as the frontend, like scanadf. > Last, any good web resource for learning and preparing myself for scannin= g?=20 > Like understanding colors saturations, etc...,=20 No idea, maybe others can help (I'd be interested too). > besides also learning the=20 > front end program? You don't want a GUI front end, you want something simple that scans the pictures in succession and saves them with numbers. if you'd need to push a button (or more) for each picture you'll well... johannes --=-FWC4exitATKR8YvzoVOf Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -BEGIN PGP SIGNATURE- Comment: Johannes Berg (SIP Solutions) iQIVAwUAQqiav6Vg1VMiehFYAQKEEA/7BQJce5mnzD5PxmzkbD9Lz7wlHDF7ZWfu uZDDT+COaNPE+fiGWhW4yfAUib4ag0Ws8gw/xltUL3BnPvQIKWcUTQ2iEZ9iQHBa FXp+T+2LqmZOoZcuYMDjoX5qeC4x2IzSAhQokGLE4AohBVysnWu5AqZIP51q5F0w 5RD80RIanovcmkLV1A35P3IJ417SfTfRDyU29BDPow6qBUrqePfwGGOHnd/aVXfE pHXQfz6i+myhtSCxqrCAsLBIXK9P4MhqRtCJkrCey9GGqIV/WiKh7ypu0Kq4NNrb WENdFcVoNrkD214cLJUqPUl2uuJfIx7rlTCMHQQZLPrG/bZoKGjNx8fI9KrZuiNI 6yaniXB6svQVvPJ70UuBogmgSBx49yGOMB43yFpbKyhN+6zsNl+xIxB2pnw6ESAF B29KCQxxdeSarAAMzWZe5jfRmVBnR5JMOmsa9NUbCUlhwaOlBu933WcoNP+TSFbE yT8qvejWugOd1PySfakpn8yMKKnRD/6s5vINBtyZs+ocn+Mj6zTXrFkWr2rGcJMn rD+r7uu9Vm2+4aTIXaK+jpTbQQT6A8M7x613P1JBsP9VMA+ajtyi+GBO5D0sWwPG SSLrnWUz1r/VF2FtlVONAihvjzYJa5mzE5lnHM1BW6Ia47SyGG5v7dnP8oh5TIwJ +bHKv/buIFc= =BjK7 -END PGP SIGNATURE- --=-FWC4exitATKR8YvzoVOf--
[sane-devel] Bug in snapscan or sane network protocolo?
Il giorno gio, 09-06-2005 alle 19:50 +0200, Henning Meier-Geinitz ha scritto: > Hi, > > On Thu, Jun 09, 2005 at 04:47:05PM +0200, Giuseppe Sacco wrote: > > Basically I do a scan of 210.0x297.0mm, using a 200dpi resolution. > > Prior to scan I call get_parameters and receive an *estimated* values > > for lines, pixelsperline, bytesperline; after receiving this data I > > receive the frame data. > > Which frontend do you use? I am using a java application. I use jsane as SANE library. >From a client side point of view, we do: 1. device open 2. set all options 3. get frame: 3.1 get parameters 3.2 start 3.3 download all frames 4. compose image using frames > > while, when scanning, I get a different amount of data: > > This is perfectly legal (see SANE standard). The normal way is: > > sane_get_parameters (returns estimated values) > sane_start > sane_get_parameters (returns exact parameters) > --> malloc memory for image, ... Is this possible? > > I see two possible options: > > > > 1. Change the snapscan algorithm to have better supposed values > > If snapscan doesn't return the correct parameters after sane_start, > it's broken. But I'd be very surprised if that were the case as that > would break all frontends. > > > 2. Change the sane network protocol in order to get all corrected > >parameter *with* or *after* the scanned data. > > I haven't checked that but you can get the parameters after running > sane_start, can't you? I don't know. I will try it tomorrow. Thanks for all comments, Giuseppe
[sane-devel] Scanning Time Question]
Hi johannes, Yes, It is a big progect I have to work on. Pictures are all 35mm of set of 4 per negative. They are not ( unfortunately ) on a roll. Yes, writing a script would be super. I would have to learn this first. But, as for model, if Nikon LS 5000 is not supported I think I will choose Nikon LS 4000 (which by now is well supported) as also comes with a rebate which makes it affordable. As for application, because I am unable to run Nikon original software under Gentoo Linux, I was thinking of http://www.hamrick.com/ VueScan as offering the same and more features than what Nicon offers. Do you know anything about this or do you think gimps would be fine? Anything else to advice as application? As for format, I do not know yet. I assume it will be either jpeg or tiff. I think jpeg with a good resolution would be sufficient. It is not only for displaying on the monitor but also for prints. They have told me that nowadays, even a jpeg can be a good graphic format as long as it is well scanned. As for space, once I decided the file format and the compression I can figure out how much disk space I will need. I like a lot the idea of the script that in the background while scanning the next picture save the previous one. Summing up, as of now, I have the idea of purchasing the Nikon 4000, with slides accessory (as I also have 300 slides) and perhaps VueScan software. There is a new Epson scanner PhotoPC F-3200 which I do not know well but it does not show up in the compatibility list. Do you know if VueScan still needs SANE as backend? LAST QUESTION: Any time I have to submit/reply an email, I mail it, it gest on hold, and then it is sent to the mailing list. Is there a way to eliminate the hold process, so that when I need help, I just write to sane-devel@lists.alioth.debian.org and it gets posted? Thank you so much for the help.! Spiro > On Thu, 2005-06-09 at 12:22 +0200, Spiro Angeli wrote: > > Approaching 15000 pictures 35mm I wish to know, > > Wow :) > > > for those who already have the > > scanner (I am thinking to purchase a Nikon LS 4000 or LS 5000) how is the > > scanning process. > > the LS5000 isn't currently supported by sane. > > > If I say I have 50 pictures to scan, how do you handle the scanning > > process? Is it possible to scan x number of pictures, holding them in > > memory and then save them to the disk all at once or do I have to scan > > and save, scan and save? > > You'll probably want to write a script/program that scans an image and > saves it to disk while the next one scans. That way, you don't need gigs > of memory but the scanner need not wait for the disk, nor the other way > around. An image scanned with the LS5000 would probably approach 60megs > or so. > > > I am trying to understand what is that I will be faced with. I am also > > trying to figure out how much time it will take for me to scan pictures, > > and am trying to figure out how to standardize the process of manually > > scanning all these pictures. > > In what format are they? slides? negatives? > > > I know that scanning time depends on the depth of the scanned picture. > > But is there a table that shows based on the depth of color and bits what > > is the time needed for the device to scan and save? > > There's a table here: > http://filmscanner.info/NikonSuperCoolscan5000ED.html > > Scroll down all the way to the bottom, then up until you hit the tables. > Just a few things: 'ohne' = without, 'mit' = with, 'Bild'=picture, > 'Bilder'=pictures, 'Stunde' = hour, 'Dia' = slide, 'Stapel'=batch, > 'Vorschau'=preview, 'Einzel'=single, 'Belichtung'=exposure. (Now you > should be able to understand the tables) > > johannes
[sane-devel] Epson iscan for Linux
Hi, I also have an Epson Perfection 2400 scanner. While browsing around, I ended up here: http://www.avasys.jp/english/linux_e/dl_scan.html It is a site with software for Linux. The software is called iscan. Has anyone heard of it? If so, has anybody installed on Gentoo? Lastly, is this iscan an application or a twaine or what? I noticed that it interfaces with gimp too. I Thank you for the clarification. Spiro
[sane-devel] Scanning Time Question]]
Hi johannes, > > LAST QUESTION: Any time I have to submit/reply an email, I mail it, it > > gest on hold, and then it is sent to the mailing list. Is there a way to > > eliminate the hold process, so that when I need help, I just write to > > sane-devel@lists.alioth.debian.org and it gets posted? > > johannes: Subscribe to the list. I did subscribe to sane-devel@lists.alioth.debian.org All I do is new email and send it to: sane-devel@lists.alioth.debian.org Is this correct? If so, yes I am still getting the [Your message to sane-devel awaits moderator approval] Please help me clarify this issue. > I thought you were going to use SANE. Then you don't need vuescan. So basically, SANE is the back end. Correct? Then as front end what will I use? I believe I was referring to VueScan as front-end. Please clarify this for me if I have a wrong understanding of SANE. > So they're in strips? That sucks. You're in for quite a bit of strip > changing then. Don't mention it. I already feel like a disk-jokey. But, patience will do it. Last, any good web resource for learning and preparing myself for scanning? Like understanding colors saturations, etc..., besides also learning the front end program? Thank you a lot, Spiro
