Comments on: GNOME Color Manager and initial scanner support

By: Attili Sattibabu

Attili Sattibabu — Thu, 10 Dec 2009 17:14:34 +0000

Good post mate!! Keep ‘em flowing!

By: Charles Dostale

Charles Dostale — Tue, 24 Nov 2009 21:37:24 +0000

I think Apple was first with ColorSync in 1993

http://en.wikipedia.org/wiki/ColorSync

By: hughsie

hughsie — Mon, 09 Nov 2009 13:47:39 +0000

At the moment I’m using the libsane matching rules. I don’t think Linux has any good support for networked scanners right now.

By: Philipp Sadleder

Philipp Sadleder — Mon, 09 Nov 2009 12:07:13 +0000

Or maybe, we could apply a profile to the gegl buffer while scanning to gimp via gnome-scan.

BTW, is the profile support for scanners expected to work. How are scanners recognized. Leveraging udev will not be enough, as there are networked devices (scanners and printers) as well.

By: fooish barish

fooish barish — Fri, 06 Nov 2009 23:11:18 +0000

Sorry for the phenomenal spam

When hitting ok in “Getting default parameters” window with Details open, a lots of stuff is printed but the window is closed automatically nobody knows what happened there.. perhaps if details are show, then allow the user to inspect the output?

By: fooish barish

fooish barish — Fri, 06 Nov 2009 23:09:17 +0000

Still continuing, the info in “Getting default parameters” is actually printed in a silly manner:

-v: Error – icoms – set_ser_port: port n
umber out of range!

That is, with a line break although the details window is rather big..

By: fooish barish

fooish barish — Fri, 06 Nov 2009 23:04:56 +0000

Continued: Calibrate says:

TI:01:02:56 FI:gcm-prefs.c FN:gcm_prefs_calibrate_cb,136
– failed to get brightness: Dim capable hardware not present
TI:01:02:56 FI:gcm-prefs.c FN:gcm_prefs_calibrate_cb,145
– failed to set brightness: Dim capable hardware not present
TI:01:02:57 FI:gcm-calibrate.c FN:gcm_calibrate_get_display,111
– found LVDS mapped to 1

and in “Getting default parameters”:

-v: Error – icoms – set_ser_port: port number out of range!

By: fooish barish

fooish barish — Fri, 06 Nov 2009 22:59:15 +0000

My old laptop from 2004 says when starting gcm-prefs -v

TI:00:51:00 FI:gcm-clut.c FN:gcm_clut_init,408
– failed to get setup parameters
TI:00:51:00 FI:gcm-clut.c FN:gcm_clut_load_from_profile,119
– no profile to load
TI:00:51:00 FI:gcm-clut.c FN:gcm_clut_get_array,200
– falling back to dummy gamma

Normal? Bug? Just a junk hw?

By: Nicolas Mailhot

Nicolas Mailhot — Fri, 06 Nov 2009 12:55:00 +0000

For video getting gamma and grayscale balance right is much more important than just calibrating colours, as videos are viewed from a distance, and rarely in a completely dark room.

Good video calibration will have you fix a lot more things than static images (and beamers have more controls than the average computer screen)

By: Philipp Sadleder

Philipp Sadleder — Fri, 06 Nov 2009 12:51:18 +0000

For gnome-scan to be able to save to tiff, gegl needs a tiff-save operation, I think.