Re: [Gimp-user] looking for VueScan (aka ImageScan!)
Michael == Michael J Hammel [EMAIL PROTECTED] writes: Michael Does anyone have a copy of this program I can have? And Michael do you know what scanners it supports that are currently Michael available off the shelf? Does anyone have any Michael recommendations for off the shelf scanners (re: ones you Michael can actually buy today at the local Best Buy or Frys) Michael that work with SANE? VueScan is here: http://www.hamrick.com/vsm.html The cost is USD$40. The interface is nice for some purposes, but for most of my work, I find the command-line scanimage works just as well. Still, $40 is cheap enough that I don't feel too bad about having bought it. roland -- PGP Key ID: 66 BC 3B CD Roland B. Roberts, PhD RL Enterprises [EMAIL PROTECTED] 76-15 113th Street, Apt 3B [EMAIL PROTECTED] Forest Hills, NY 11375 ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] epson perfection scanner 2450
Mogens == Mogens Jæger [EMAIL PROTECTED] writes: Mogens When I am using it directly it runs just great. I have Mogens been trying with the Xsane (version of Suse 8.0) but the Mogens 2450 is not in there, so I tryed with another - as far as Mogens I remember the 1690 - and it resulted in a 'dead' Mogens TPU. Epson is luckily very generous, so a got a new one Mogens instead. No one will say/admit that a 'wrong' driver can Mogens harm the light unit. I'm confused, does iscan work with the 2450 or not? And it was the 1690 that died on you? roland -- PGP Key ID: 66 BC 3B CD Roland B. Roberts, PhD RL Enterprises [EMAIL PROTECTED] 76-15 113th Street, Apt 3B [EMAIL PROTECTED] Forest Hills, NY 11375 ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] dividing a page of images into individual images
rob == rob [EMAIL PROTECTED] writes:
rob I'm trying to catalog my photos I've got a negative scanner
rob which scans them in 12 twelve at a time (epson 2450 photo) is
rob there a script I can run it through to get 12 individual
rob images?
I'm attaching an undocumented script I use to scan film and slides
with my epson 2450 using scanimage. Here's how I used it this morning
to scan a set of 12 images while I was commuting to work.
( for x in 1 2 3 4 5 6 7 8 9 10 11 12; do F=$((x+3)); scanfilm --strip $x --file
$(printf f%02d.tif $F) --format tiff --resolution 2400 --depth 16; done) scan.log
21
And here is a scan from a couple days ago when I had uncut slide film:
( for x in 3 4 8 9 10; do F=$((x+2)); scanfilm --strip $x --positive --file $(printf
%02d.tif $F) --format tiff --resolution 2400 --depth 16; done) scan.log 2
o The --strip uses the 35-mm strip holder and assumes negative film.
o The --slide uses the 35-mm (mounted) slide holder and assumes
positive film.
o The film type may be overridden via --positive or --negative.
o Unrecognized options are passes through as-is (e.g.,
--resolution, --depth, --format). No promises that it won't
break on somthing.
Note that I don't have anything set up for medium format film yet. I
have a roll I need to scan, so I'll probably add that in the next week
or so.
roland
--
PGP Key ID: 66 BC 3B CD
Roland B. Roberts, PhD RL Enterprises
[EMAIL PROTECTED] 76-15 113th Street, Apt 3B
[EMAIL PROTECTED] Forest Hills, NY 11375
#! /bin/bash
#
# Copyright © 2002, Roland Roberts [EMAIL PROTECTED]
#
# RCS Revision
# @(#) $Id$
# $Source$
#
# Helper script for scanning film (negative/slide) from Epson
# Perfection 2450 Photo scanner.
#
#
# TODO:
# --resolution, --brightness, --mode, --depth
# Ideally, anything unrecognized should pass through.
#
negative=-1
slot=1
ARGS=
while [ $# -gt 0 ]; do
case $1 in
--rotate)
shift
rotate=$1
if [ $rotate -eq 90 ]; then
rotate=-r90
elif [ $rotate -eq 270 ]; then
rotate=-r270
elif [ $rotate -eq 180 ]; then
rotate=-r180
else
echo invalid rotation: $rotate; select --rotate 90|180|270 2
exit 1
fi
;;
--file)
shift
file=$1
;;
--positive)
negative=0
;;
--negative)
negative=1
;;
--strip)
if [ $negative -lt 0 ]; then
negative=1
fi
shift
slot=$1
if [ x$file = x ]; then
file=$(printf %02d $slot).pnm
fi
left=7
if [ $slot -gt 6 ]; then
slot=$((slot-6))
left=70
fi
if [ $slot -gt 6 ]; then
echo '--slot out of range 1-12' 2
exit 1
fi
top=$(echo 2.5+38*($slot-1) | bc -l)
;;
--slide)
if [ $negative -lt 0 ]; then
negative=0
fi
shift
slot=$1
if [ x$file = x ]; then
file=$(printf %02d $slot).pnm
fi
left=38
if [ $slot -gt 4 ]; then
echo '--slot out of range 1-4' 2
exit 1
fi
# FIXME: What is the correct value for `top'?
top=$((9+58*($slot-1)))
;;
*)
ARGS=$ARGS $1
;;
esac
shift
done
if [ $negative -gt 0 ]; then
film_type='Negative Film'
else
film_type='Positive Film'
fi
CMD=scanimage -d epson:/dev/usbscanner0 --focus-position 'Focus 2.5mm above glass'
--source 'Transparency Unit' --mode color --film-type $film_type --resolution 1200
--brightness 3 -x 26mm -y 38mm -l ${left}mm -t ${top}mm --depth 8 $ARGS
if [ x$rotate != x ]; then
CMD=$CMD | pnmflip $rotate $file
else
CMD=$CMD $file
fi
echo $CMD
eval $CMD
Re: [Gimp-user] Losing precision
John == John Culleton [EMAIL PROTECTED] writes: John I have a JPEG that was scanned at say 300dpi. I reduce it in John size in Gimp. Now the dpi shoots up in proportion. I want to John use the reduced image on a web page where anything over John 75dpi is overkill. I know I can scale back the precision John when I save the file but what is the relationship if any John between the percentages shown on the save dialogue and the John dpi of the saved image? If you are putting it on the web, ignore DPI. You don't care about DPI, you care about dimensions. DPI will have *no* effect on what you see for a web image. roland -- PGP Key ID: 66 BC 3B CD Roland B. Roberts, PhD RL Enterprises [EMAIL PROTECTED] 76-15 113th Street, Apt 3B [EMAIL PROTECTED] Forest Hills, NY 11375 ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] Re: Re: Transparency
Juliet == Juliet Jennifer Mari R [EMAIL PROTECTED] writes: Juliet Hello to the TIFF recomender, Guess you have an enourmous Juliet disk space available, usually people cannot afford store Juliet images in TIFF format... we have to cope with jpg and Juliet gifs. As Joel said, if your are working for *print* save as TIFF. He didn't say put the TIFF on the web site. My raw scans are all TIFF and are archived on CD that way, sometimes with the GIMP XCF files on the same CD. Juliet The IE5 supports transparency in pictures very well, Juliet that's the informaton stored within the graphic :) try a Juliet gif format and u may smile. Yes, and that was also his recommendation. *GIF* is a lowest-common-denominator format for transparency. IE5 breaks on PNGs with transparency. Try it. roland -- PGP Key ID: 66 BC 3B CD Roland B. Roberts, PhD RL Enterprises [EMAIL PROTECTED] 76-15 113th Street, Apt 3B [EMAIL PROTECTED] Forest Hills, NY 11375 ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] what is dpi, ppi and lpi
Jon == Jon Winters [EMAIL PROTECTED] writes: Jon On Fri, 12 Apr 2002, Amit Mukherjee wrote: Hi, Can anyone tell me the difference between dpi, ppi and lpi ? If my intention is to print a picture measuring 8x10, at what resolution should I scan ? Jon dpi = dots per inch Jon ppi = pixels per inch Jon lpi = lines per inch DPI is normally used for scanners, printers, and monitors. LPI is normally used for half-tone screened images. A 100 LPI half-tone image corresponds to a much higher DPI rating. Jon to know the minimum you need to scan you'll need to know what Jon sort of dpi your printer is capable of printing. Jon Lets say its an ink-jet that'll handle 1000dpi To print an Jon 8x10 without having to scale the image up or down to make it Jon fit you'll need to scan... Jon 8000 x 10,000 pixels! Jon Pretty easy eh? For most practical purposes, 300dpi for a color print is more than good enough. Scaling the image to fill whatever resolution you need for your printer should cause no problems. If you have a 300dpi image (at print scale), and produce a fiery from it, you will be completely happy with the results. For photographs, I typically scan the 35mm negatives at 2400dpi and print up to 8x12 with no perceptible loss. roland -- PGP Key ID: 66 BC 3B CD Roland B. Roberts, PhD RL Enterprises [EMAIL PROTECTED] 76-15 113th Street, Apt 3B [EMAIL PROTECTED] Forest Hills, NY 11375 ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] what is optical resolution
jjc == Cruz, John J [EMAIL PROTECTED] writes: jjc Roland, You certainly have answered most of the questions I jjc had in mind. I do have one remaining question, however. The jjc digital cameras I've seen at stores like CompUSA only list in jjc their spec. total pixels. For example 1.3 Meg pixels. My jjc question is how can I translate this number to the print size jjc I want to print (w/o perceptible distortion)? I print all jjc photos on 8.5 x 11 photo paper and would like to print also jjc at 17 x 22. The more common formats in digital camera are a 4:3 ratio, at least for the smaller formats. I have a 1.3 megapixel camera and it's formats are 320x240, 640x480, and 1280x960. Higher end cameras may do other things. Do a little more digging, you should be able to find something about the actual formats supported for your camera. jjc I don't currently have a digital camera. I use the new Kodak jjc format and for the developing process I request digitized jjc photos. I don't now recall the size of each photo-file jjc return (via CD) but I think each photo-file is a jpeg file jjc under 1 Meg. jjc So my real question is should I buy a $200 HP camera at 1.3 jjc Meg pixels or a $ 200 HP scanner? What's the resolution of the scanner? A 1.3 megapixel camera will never produce satisfactory prints at 17x22 and, even though Ofoto (http://www.ofoto.com) claims it will print at 8x10, the quality if marginal. Acceptable for a family vacation photo, maybe, but not for critical work. Mind you, we bought a Fuji FinePix 1400 1.3 megapixel camera last year for vacation pictures where we expect to (1) put them on the web for our family members to view and (2) occasionally make 4x6 snapshot-sized prints for friends/relatives. For 8x10 prints, I wouldn't recommend anything less than a 2 megapixel camera, but again, that is primarily for non-critical work. I'd say spend the money on the printer if you are doing artwork. Even an inexpensive color printer is acceptable for proofs. My dad does commercial work and he considers his Tektronix Phaser (don't remember which model) only acceptable for proofs. For high quality, it goes to a service bureau. roland -- PGP Key ID: 66 BC 3B CD Roland B. Roberts, PhD RL Enterprises [EMAIL PROTECTED] 76-15 113th Street, Apt 3B [EMAIL PROTECTED] Forest Hills, NY 11375 ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] Re: what is optical resolution
Guillermo == Guillermo S Romero / Familia Romero [EMAIL PROTECTED] writes: Guillermo In some scanners interpolated is (a bit) better than Guillermo scaling the image afterwards, cos the driver has access Guillermo to the full range of info (some scan in 30 bits vs 24 Guillermo of images, for example) as well as knowing how it is Guillermo made the hardware and thus can guess better. But you Guillermo should always pay attention to optical, it is the real Guillermo limit, other things are tricks. Actually, this is a good point which I forgot. I've been using software other than the GIMP for initial processing (mostly level adjustment) to access the full 16-bits/color from my scanner, then doing touch-up in the GIMP. Having access to all 16-bits/color would be a great thing to have in the GIMP roland -- PGP Key ID: 66 BC 3B CD Roland B. Roberts, PhD RL Enterprises [EMAIL PROTECTED] 76-15 113th Street, Apt 3B [EMAIL PROTECTED] Forest Hills, NY 11375 ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] Please help, cannot compile Hollywood GIMP
Marcin == Marcin Skubiszewski [EMAIL PROTECTED] writes: Marcin I checked in Hollywood GIMP today, and I cannot compile it Marcin because configure fails. Could some good soul help me ? A better question would be what happened to Hollywood GIMP. I was able to configure it on RedHat 7.1 after a moderate amount of work, but it wouldn't build. Near as I could tell, it has been orphaned or, at the very least, development has slowed to a near standstill. Is there anyone here who knows if the 16-bit color models will ever make it into the main branch? roland -- PGP Key ID: 66 BC 3B CD Roland B. Roberts, PhD RL Enterprises [EMAIL PROTECTED] 76-15 113th Street, Apt 3B [EMAIL PROTECTED] Forest Hills, NY 11375 ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] Drawing circles/ellipses/smooth curves
Thanks Jon and Carol! I can now draw circles and ellipses! I can even draw bezier curves! Is there a trick to drawing an ellipse whose axes are *not* aligned with the picture borders? Hmmm, maybe I can answer my own question: draw it on another layer and rotate layer. Is that the only way? roland -- PGP Key ID: 66 BC 3B CD Roland B. Roberts, PhD RL Enterprises [EMAIL PROTECTED] 76-15 113th Street, Apt 3B [EMAIL PROTECTED] Forest Hills, NY 11375 ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
