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GIMPPRINT-COLOR(7)		     Gimp-Print Manual Pages		       GIMPPRINT-COLOR(7)

       gimpprint-color - Gimp-Print color balancing

       Gimp-Print  includes  several  color  balancing controls.  These may be used to adjust the
       original image's brightness and contrast and gamma, and the density and saturation of  the
       output, as well as the individual cyan, magenta and yellow levels.



       Yellow The  range  of values is 0.0 - 4.0, and defaults to 1.0.	These three options allow
	      specification of the cyan, magenta, and yellow levels independently, for	rebalanc-
	      ing the levels.  Normally, these should be adjusted to yield neutral gray, but they
	      can be used for other effects.

	      The range of values is 0.0 - 2.0, and defaults to 1.0.  This adjusts the brightness
	      of  the image.  0.0 gives a fully black image; 2.0 gives a fully white image.  Val-
	      ues greater than 1 will result in black not  being  solid  and  highlights  turning
	      white;  values less than 1 will result in white not being perfectly clear and shad-
	      ows turning black.

	      The range of values is 0.0 - 4.0, and defaults to 1.0.  Adjust the contrast of  the
	      image.   0.0 gives a solid gray for the entire image, the exact gray depending upon
	      the brightness chosen.

       Gamma  The range of values is 0.1 - 4.0, and defaults to 1.0.  Adjust  the  gamma  of  the
	      image,  over  and  above the printer-specific correction.  Gamma less than 1.0 will
	      result in a darker image; gamma greater than 1.0 will result in  a  lighter  image.
	      Unlike  brightness,  gamma  adjustment  does  not  change  the endpoints; it merely
	      changes the shape of the input->output curve.

	      The range of values is 0.1 - 2.0, and defaults to 1.0.  Adjust the  amount  of  ink
	      deposited on the paper.  If you've chosen the correct paper type and you're getting
	      ink bleeding through the paper or puddling, try reducing the density to the  lowest
	      value  you  can  while  still  achieving	solid black.  If you're not getting solid
	      black, even with the contrast and brightness at 1.0, try increasing the density.

	      All of the printers supported here actually need less than 100% ink density in most
	      cases,  so  the actual density is something other than the nominal density setting.
	      The effective density setting cannot go above 100%, so if a  value  specified  will
	      result in an excessively high density level, it will be silently limited to 1.0.

	      The  range  of  values is 0.0 - 9.0, and defaults to 1.0.  Adjust the brilliance of
	      colors.  0.0 results in pure grayscale; using this with Color=1 is one way of  get-
	      ting grayscale (see below under "Color" for a full discussion).  Saturation of less
	      than 1.0 results in more muted colors; saturation of greater than  1.0  results  in
	      more  vibrant  colors.  Very high saturation often results in very strange effects,
	      including posterization and banding that might not be expected.	For  normal  pur-
	      poses, the saturation should generally be less than 1.5.

       Copyright (C) 2001 Michael Sweet (mike@easysw.com) and Robert Krawitz (rlk@alum.mit.edu)

       This program is free software; you can redistribute it and/or modify it under the terms of
       the GNU General Public License as published by the Free Software Foundation;  either  ver-
       sion 2 of the License, or (at your option) any later version.

       This manual page was written by Roger Leigh (roger@whinlatter.uklinux.net)

       gimpprint-dithers(7),   gimpprint-imagetypes(7),  gimpprint-inktypes(7),  gimpprint-media-
       sizes(7), gimpprint-mediasources(7), gimpprint-mediatypes(7),  gimpprint-models(7),  gimp-

Version 4.2.4				   25 Nov 2002			       GIMPPRINT-COLOR(7)
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