ac6a5dae50
Thu Dec 16 20:15:25 CET 1999 Olof S Kylande <olof@gimp.org>
Fix of KDE/Kwm selection add/sub/inter problem
NOTE: This is a workaround, not a real fix.
Many Thanks to Matthias Ettrich
* app/disp_callbacks.c
Updated unsharp-mask to version 0.10
* plug-ins/unsharp/dialog_f.c
* plug-ins/unsharp/dialog_f.h
* plug-ins/unsharp/dialog_i.c
* plug-ins/unsharp/dialog_i.h
* plug-ins/unsharp/unsharp.c
Updated print plug-in to version 3.0.1
* plug-ins/print/README (new file)
* plug-ins/print/print-escp2.c
* plug-ins/print/print-pcl.c
* plug-ins/print/print-ps.c
* plug-ins/print/print-util.c
* plug-ins/print/print.c
* plug-ins/print/print.h
Updated all files in the help/C/dialogs dir. This is
a first alpha glimpse of the help system. Please give
me feedback of the content. However since it's in alpha
stage it means that there is spell, grammatical, etc errors.
There is may also be pure errors which I hope "you" will
report to either olof@gimp.org or karin@gimp.org. Please
don't report spell, grammatical, etc error at this stage in dev.
If you have any plans to commit to the help system please write
to olof@gimp.org. (This is mandatory not a please ;-).
* help/C/welcome.html
* help/C/dialogs/about.html ..............
87 lines
3 KiB
Text
87 lines
3 KiB
Text
Print plugin for the Gimp. Version 3.0 by Robert Krawitz
|
|
<rlk@alum.mit.edu> based on version 2.0 by Michael Sweet
|
|
<mike@easysw.com>.
|
|
|
|
This version has numerous enhancements:
|
|
|
|
1) Full support for the Epson Stylus Photo, Photo 700, and Photo EX
|
|
printers, including 6-color printing, 1440x720 dpi resolution, and
|
|
"soft" weave for much faster high quality printing.
|
|
|
|
2) Many new controls, including:
|
|
|
|
* Output gamma adjustment
|
|
* Contrast
|
|
* Red/green/blue levels
|
|
* Saturation
|
|
* Density
|
|
* Additional scaling options
|
|
|
|
3) Improved tonal resolution. Calculations are now done in 16 bit
|
|
rather than 8 bit resolution, which eliminates stair stepping.
|
|
Input levels do not map one to one onto output levels, so in 8 bit
|
|
output resolution multiple input levels will map to a single output
|
|
level. Usually the density range is compressed in the light end of
|
|
the tonal range, so many different input levels will map to one
|
|
output level. Use of 16 bit output resolution avoids this
|
|
undesirable behavior and results in smooth tonal gradations in
|
|
highlights.
|
|
|
|
4) Saving of all settings between print jobs.
|
|
|
|
|
|
This plugin has been optimized for the Epson Stylus Photo EX, since
|
|
that's the printer I own. I am interested in comments on performance
|
|
both with Epson Stylus printers and with others.
|
|
|
|
Some tips on tuning the output:
|
|
|
|
* Start with the default settings
|
|
|
|
* Brightness and density are not the same thing. Density is a purely
|
|
linear adjustment; more density means more ink. Brightness affects
|
|
perceived brightness.
|
|
|
|
* Higher gamma values result in brighter images with compressed
|
|
highlights. Lower gamma values are darker, but with better tonal
|
|
range in the highlights.
|
|
|
|
* Different brands of ink yield different results. I've found that
|
|
third party inks on Epson printers are generally too cyan. The
|
|
correction for excessive cyan is to add red (or reduce blue and
|
|
green).
|
|
|
|
* I've found that what creates good test patterns does not necessarily
|
|
create good photographs. In particular, test patterns often print
|
|
well with gamma of .6 or thereabouts, but that gives washed out
|
|
photographs. Perhaps when I implement a better contrast control
|
|
this can be improved.
|
|
|
|
* The contrast control scales polynomially around the midpoint of the
|
|
range. Lower contrast will reduce the contrast in the midtones, but
|
|
increase the contrast in the highlights and shadows. Contrariwise,
|
|
a high contrast value will stretch the scale in midtones,
|
|
compressing the highlights and shadows.
|
|
|
|
* There are many combinations of brightness, gamma, and density that
|
|
will create acceptable images. You may find that you want different
|
|
settings for different images.
|
|
|
|
* One group of settings you might want to start with is:
|
|
|
|
Brightness 110
|
|
Gamma 1.3
|
|
Contrast 80
|
|
Green 94
|
|
Blue 89
|
|
Saturation 1.15
|
|
Density 1.6
|
|
|
|
|
|
Makefile.standalone enables you to build this plugin as a standalone
|
|
plugin, without reference to a Gimp source tree.
|
|
|
|
|
|
Enjoy!
|
|
|
|
-Robert Krawitz, November 14, 1999
|