Discussion:
[Gimp-print-devel] Epson stylus Pro 3800 B&W color cast
Gabriele Piccini
2017-03-29 08:03:32 UTC
Permalink
Hi All,
I'm printing a desaturate image with Gimp with default print plug-in (not
gutenprint plug-in because I use Gimp-CCE by Elle Stone and it doesn't
work)..
I print on Canson Platine Rag fiber and with archival matte paper setting
(which is what Canson reccomends) ,grayscale as color model and
uncorrected color correction but I have a black as dark brown .

Do you have any hints??
If grayscale color model use only black cartridge, why do I have a color
cast ??
Did I do some errors or what would I do more??

Cheers
Gabriele
Robert Krawitz
2017-03-29 12:40:01 UTC
Permalink
Post by Gabriele Piccini
I'm printing a desaturate image with Gimp with default print plug-in (not
gutenprint plug-in because I use Gimp-CCE by Elle Stone and it doesn't
work)..
What is the issue with it?
Post by Gabriele Piccini
I print on Canson Platine Rag fiber and with archival matte paper setting
(which is what Canson reccomends) ,grayscale as color model and
uncorrected color correction but I have a black as dark brown .
Do you have any hints??
If grayscale color model use only black cartridge, why do I have a color
cast ??
Did I do some errors or what would I do more??
Are you using the photo black or matte black ink set (the Gutenprint
setting, that is)?

Black/gray inks aren't always perfectly neutral; I don't remember
offhand whether the 3800's ink is or not. You may need to use the
"color" color model, with the Desaturated color correction.
--
Robert Krawitz <***@alum.mit.edu>

*** MIT Engineers A Proud Tradition http://mitathletics.com ***
Member of the League for Programming Freedom -- http://ProgFree.org
Project lead for Gutenprint -- http://gimp-print.sourceforge.net

"Linux doesn't dictate how I work, I dictate how Linux works."
--Eric Crampton
Gabriele Piccini
2017-04-02 19:49:41 UTC
Permalink
What is the issue with it?

I can't compile gutenprint against gimp-cce
I have :

/.............////print-image-gimp.c: In function 'Image_GimpDrawable_new':////print-image-gimp.c:156:3: warning: 'gimp_pixel_rgn_init' is deprecated:
Use 'gimp_drawable_get_buffer' instead [-Wdeprecated-declarations]////gimp_pixel_rgn_init(&(im->rgn), drawable, 0, 0,////^////In file included from /usr/local/include/gimp-2.0/libgimp/gimp.h:57:0,////from print_gimp.h:40,////from print-image-gimp.c:28://///usr/local/include/gimp-2.0/libgimp/gimppixelrgn.h:48:11: note: declared
here////void gimp_pixel_rgn_init (GimpPixelRgn *pr,////^////print-image-gimp.c:165:10: error: 'GIMP_INDEXED' undeclared (first use
in this function)////case GIMP_INDEXED:////^////print-image-gimp.c:165:10: note: each undeclared identifier is reported
only once for each function it appears in////print-image-gimp.c:166:18: error: implicit declaration of function
'gimp_image_get_cmap' [-Werror=implicit-function-declaration]////im->cmap = gimp_image_get_cmap(image_ID, &(im->ncolors));////^////print-image-gimp.c:166:7: warning: nested extern declaration of
'gimp_image_get_cmap' [-Wnested-externs]////im->cmap = gimp_image_get_cmap(image_ID, &(im->ncolors));////^////print-image-gimp.c:166:16: warning: assignment makes pointer from
integer without a cast [-Wint-conversion]////im->cmap = gimp_image_get_cmap(image_ID, &(im->ncolors));////^////print-image-gimp.c: In function 'Image_get_row':////print-image-gimp.c:226:7: error: 'GIMP_INDEXED' undeclared (first use in
this function)////case GIMP_INDEXED:////^////print-image-gimp.c:245:5: warning: 'gimp_pixel_rgn_get_col' is
deprecated: Use 'gegl_buffer_get' instead [-Wdeprecated-declarations]////gimp_pixel_rgn_get_col(&(im->rgn), inter,////^////In file included from /usr/local/include/gimp-2.0/libgimp/gimp.h:57:0,////from print_gimp.h:40,////from print-image-gimp.c:28://///usr/local/include/gimp-2.0/libgimp/gimppixelrgn.h:74:11: note: declared
here////void gimp_pixel_rgn_get_col (GimpPixelRgn *pr,////^////print-image-gimp.c:248:5: warning: 'gimp_pixel_rgn_get_row' is
deprecated: Use 'gegl_buffer_get' instead [-Wdeprecated-declarations]////gimp_pixel_rgn_get_row(&(im->rgn), inter,////^////In file included from /usr/local/include/gimp-2.0/libgimp/gimp.h:57:0,////from print_gimp.h:40,////from print-image-gimp.c:28://///usr/local/include/gimp-2.0/libgimp/gimppixelrgn.h:68:11: note: declared
here////void gimp_pixel_rgn_get_row (GimpPixelRgn *pr,////^////print.c: In function 'run':////print.c:226:8: error: 'GIMP_EXPORT_CAN_HANDLE_INDEXED' undeclared (first
use in this function)////GIMP_EXPORT_CAN_HANDLE_INDEXED |////^////print.c:226:8: note: each undeclared identifier is reported only once
for each function it appears in////print.c:243:3: warning: 'gimp_drawable_get' is deprecated: Use
'gimp_drawable_get_buffer' instead [-Wdeprecated-declarations]////drawable = gimp_drawable_get (drawable_ID);////^////In file included from /usr/local/include/gimp-2.0/libgimp/gimp.h:41:0,////from print_gimp.h:40,////from print.c:28://///usr/local/include/gimp-2.0/libgimp/gimpdrawable.h:51:16: note: declared
here////GimpDrawable * gimp_drawable_get (gint32 drawable_ID);////^////print.c:251:10: error: 'GIMP_INDEXED' undeclared (first use in this
function)////case GIMP_INDEXED:////^////print.c:263:52: error: implicit declaration of function 'gimp_gamma'
[-Werror=implicit-function-declaration]////stp_set_float_parameter(gimp_vars.v, "AppGamma", gimp_gamma());////^////print.c:263:3: warning: nested extern declaration of 'gimp_gamma'
[-Wnested-externs]////stp_set_float_parameter(gimp_vars.v, "AppGamma", gimp_gamma());////^////print.c:383:2: warning: 'gimp_tile_cache_ntiles' is deprecated
[-Wdeprecated-declarations]////gimp_tile_cache_ntiles ((drawable->height + gimp_tile_width () - 1) /////^////In file included from /usr/local/include/gimp-2.0/libgimp/gimp.h:63:0,////from print_gimp.h:40,////from print.c:28://///usr/local/include/gimp-2.0/libgimp/gimptile.h:60:9: note: declared here////void gimp_tile_cache_ntiles (gulong ntiles);////^////print.c:386:2: warning: 'gimp_tile_cache_ntiles' is deprecated
[-Wdeprecated-declarations]////gimp_tile_cache_ntiles ((drawable->width + gimp_tile_width () - 1) /////^////In file included from /usr/local/include/gimp-2.0/libgimp/gimp.h:63:0,////from print_gimp.h:40,////from print.c:28://///usr/local/include/gimp-2.0/libgimp/gimptile.h:60:9: note: declared here////void gimp_tile_cache_ntiles (gulong ntiles);////^////print.c:406:3: warning: 'gimp_drawable_detach' is deprecated
[-Wdeprecated-declarations]////gimp_drawable_detach (drawable);////^////In file included from /usr/local/include/gimp-2.0/libgimp/gimp.h:41:0,////from print_gimp.h:40,////from print.c:28://///usr/local/include/gimp-2.0/libgimp/gimpdrawable.h:53:16: note: declared
here////void gimp_drawable_detach (GimpDrawable *drawable);////^////cc1: some warnings being treated as errors////cc1: some warnings being treated as errors////Makefile:531: recipe for target 'print-image-gimp.o' failed////make[3]: *** [print-image-gimp.o] Error 1////make[3]: *** Waiting for unfinished jobs....////Makefile:531: recipe for target 'print.o' failed////make[3]: *** [print.o] Error 1////make[3]: Leaving directory
'/home/gabriele/Downloads/gutenprint-5.2.12/src/gimp2'////Makefile:472: recipe for target 'all-recursive' failed////make[2]: *** [all-recursive] Error 1////make[2]: Leaving directory '/home/gabriele/Downloads/gutenprint-5.2.12/src'////Makefile:573: recipe for target 'all-recursive' failed////make[1]: *** [all-recursive] Error 1////make[1]: Leaving directory '/home/gabriele/Downloads/gutenprint-5.2.12'////Makefile:504: recipe for target 'all' failed////make: *** [all] Error 2//////............///


Are you using the photo black or matte black ink set (the Gutenprint
setting, that is)?

I'm using photo black.
Because, as you said, black/gray inks aren't neutral I printed with color profile and black color is almost black neutral (measured with colormunky photo).

Gabriele

-------- Forwarded Message --------
Subject: Epson stylus Pro 3800 B&W color cast
Date: Wed, 29 Mar 2017 10:03:32 +0200
From: Gabriele Piccini <***@gmail.com>
To: Gutenprint (formerly Gimp-Print) printer driver development
<gimp-print-***@lists.sourceforge.net>



Hi All,
I'm printing a desaturate image with Gimp with default print plug-in
(not gutenprint plug-in because I use Gimp-CCE by Elle Stone and it
doesn't work)..
I print on Canson Platine Rag fiber and with archival matte paper
setting (which is what Canson reccomends) ,grayscale as color model and
uncorrected color correction but I have a black as dark brown .

Do you have any hints??
If grayscale color model use only black cartridge, why do I have a color
cast ??
Did I do some errors or what would I do more??

Cheers
Gabriele
Robert Krawitz
2017-04-02 20:24:22 UTC
Permalink
Post by Robert Krawitz
What is the issue with it?
I can't compile gutenprint against gimp-cce
What is gimp-cce?
--
Robert Krawitz <***@alum.mit.edu>

*** MIT Engineers A Proud Tradition http://mitathletics.com ***
Member of the League for Programming Freedom -- http://ProgFree.org
Project lead for Gutenprint -- http://gimp-print.sourceforge.net

"Linux doesn't dictate how I work, I dictate how Linux works."
--Eric Crampton
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