consegui da seguinte forma, esse é o arquivo readme do Separate
é só seguir os passos no link que postei anteriormente, não tem erro.
============================ Separate+ Readme =========================
-Introduction
-Requirements
-What you need
-Installation
-How to use
-Color separation using devicelink profile
-Explanation of Dialogs
-Moving together with Configuration
-Sample scripts
-TIFF Import plug-in
-Tips for building plug-ins
-Authors
-License
----- Introduction
Separate+ is the name of a project and plug-in package aimed mainly for
complementing color management functionality of GIMP and for assisting
publication (Web, printing etc.) activities by utilizing open source
software. This package includes the following 3 plug-ins.
separate
It is a plug-in for RGB -> CMYK conversion, saving and softproofing
and is an improved version of Separate plug-in by Alastair M. Robinson.
icc_colorspace
It is a plug-in for RGB -> RGB conversion and profile management.
Another file gives a description of functionalities.
separate_import (bonus)
It is a plug-in for loading (importing) CMYK TIFF files saved by
Separate plug-in. It can also be used for TIFF files created by
another application, but the operation is not guaranteed.
----- Requirements
The Plug-ins require LittleCMS version 1.15 or later, or, 2.0 or later.
Bundled win32 binaries are built for a Pentium III or its compatible
CPUs. These are tested with The GIMP for Windows version 2.6.10.
----- What you need
* Basic knowledge about ICC-based color management
* GIMP (Version 2.4 or later)
* Plug-ins included in this package (Windows binary code for GIMP 2.4 or
later is attached)
* ICC profiles
A sRGB profile is included. Standard profiles such as Adobe RGB, SWOP
or FOGRA are downloadable from Adobe website.
(Mac)
http://www.adobe.com/support/downloads/iccprofiles/iccprofiles_mac.html(Win/Linux)
http://www.adobe.com/support/downloads/iccprofiles/iccprofiles_win.html----- Installation
(Linux or UNIX-like operating systems)
In the beginning, check whether a GIMP development package is installed.
(In the case of Ubuntu, the name is "libgimp2.0-dev".)
Additionally, Little CMS (lcms), libtiff and libjpeg development
packages are required to be installed; therefore, check it at the same
time.
Next, modify Makefile by an editor as necessary. Regularly, PREFIX,
INSTALLDIR etc. will be modified to fit your environment.
Open the terminal window, move to the folder which is generated by the
separate+ ZIP file decompression, and run the following commands.
$ make
$ sudo make install
NOTE : If you cannot use sudo, get superuser privilige by "su" and "make
install".
For ICC profiles announced in "What you need" section, decompress the
ZIP file downloaded and move the decompressed files whose extension is
.icc into a predetermined place. In the case of Linux, the folder is one
of the following.
a. /usr/share/color/icc
b. ~/.color/icc
----- How to use
First, activate a layer you would like to separate. It may unlikely to
separate only a specific layer, so you will integrate images regularly.
Next, select "Image -> Separate -> Separate" from the menu in the image
window.
For "Source color space", specify an image profile (if the image has
embedded profile, you have only to select "Give priority to embedded
profile") , and for "Destination color space", specify a CMYK output
profile. If you have any question, contact your printing company.
For rendering intent, select "Perceptual" or "Relative colorimetric"
(decide from the result which is better). Then, we recommend turning on
"Use BPC algorithm".
For "Make CMYK pseudo-composite", select if you are planning to tweak
after separation.
After the above-mentioned specification and clicking OK, a new image
with 4 layers is generated.
*Additionally, when you created pseudo-composite, the image may contain
a background layer; when you separated transparent layers with alpha,
the image may contain a copy of the original alpha channel.
Each layer corresponds to an individual CMYK color; you can alter it or
adjust the tone curve or level if required. Nevertheless, do not change
the layer names. In addition, I do not recommend adding or deleting
layers or layer masks. If you would like to keep the repairs, save as
XCF format (Saving as PSD format eliminates the information about the
profile used for the separation).
To check the separated color through display screen, Select Image ->
Separate -> Proof from the document window of separated image.
For "Monitor color space", specify the profile of your monitor.
If you need to check the profile, select "View -> Display Filters..."
from "Image Window" menu, and after the dialog opens, click "Color
Management" filter. Then, the name of the monitor profile is displayed
on the lower half of the dialog (You cannot check colors if the
configuration is "None").
For "Separated image's color space", choose the profile you specified
as destination color space at the separation. Usually, the profile
information used for the separation is recorded in the resulting image;
therefore, you may select "Give priority to attatched profile".
For "Mode", it is difficult to say which is optimum, but Photoshop
displays the same as "Normal"; therefore, if you are accustomed to
Photoshop's display, select "Normal".
After the specification mentioned above, click OK and an image for check
is generated. Note that you cannot check in appropriate color if "Color
Management -> Mode of operation" in Preferences is "Print simulation".
When your check is finished, you can close the window.
Finally, export the result to a file. If you would like to separate
transparent layers containing alpha and to export them as a TIFF file
with preserving the transparent area, make "Alpha of source image"
channel displayed in advance. Choose "Image -> Separate -> Export..."
from the document window of separated image. Input a path and click
"Save" button to complete. Here, you can embed a profile or choose a
clipping path.
*It is common that profiles are not embedded in images for printing
company.
----- Color separation using devicelink profile
Turn on "Use devicelink profile" switch in Separate dialog. This
operation turns Source color space into Devicelink profile. After that,
choose the RGB->CMYK devicelink profile. For the destination, choose a
profile which will be attached after the separation (any profile
selection does not affect the result of separation). If not needed, it
can remain unselected.
If you execute it non-interactively, assign a devicelink profile for
the 4th parameter (input-profile). For 6th parameter (output-profile),
set an empty string or assign a profile attached after the separation
(if an empty string, profiles are not attached).
----- Explanation of Dialogs
* Separate dialog
- Source color space
Select an ICC profile that represents the color space of the source
image. It is required for making the computer know what color the
source image is. Turn on the check box if a profile is embedded.
- Destination color space
Choose an ICC profile that represents the color space of printed
matter. A different profile is provided for different printing
condition, so choose the most appropriate one. (The printing
condition will be described in the document attached to the profile
or web pages of the distributor.)
If you are not sure, contact your printing company or profile
provider.
- Rendering intent
See guidebooks about color management. Generally, select either
"Perceptual" or "Relative colorimetric" (the final decision should
be done after the result).
"Absolute colorimetric (2)" makes the results closer to results of
"Absolute colorimetric" at Photoshop CS2 or later. If you perform a
regular transformation followed by an ICC standard, do not choose
this option.
- Use BPC algorithm
Refer to guidebooks about color management. Unless you have any
reason, leave this option on at any time.
- Use devicelink profile
Select when you perform color separation with a devicelink profile.
Novices should not select it (leave this option off at any time).
- Preserve pure black
It replaces pixels of RGB=0,0,0 with CMYK=0%,0%,0%,100%.
- Overprint pure black
For the pixels of RGB=0,0,0, it replaces K values with 100%.(CMY
values are almost the same as regular converting results.)
- Use dither
It approximates pixels whose conversion result value cannot be
expressed by an 8-bit integer with dithering.
When gradation with banding is generated, use dithering and the
problem may be improved.
*Because this option depends on the function of Little CMS version
1.18, it is not effective in the environment where the Little CMS
library of version 1.17 or earlier is installed in.
- Make CMYK pseudo-composite
Usually, separating results are output in the form of grayscale
layer, but selecting this option makes it possible to output colored
layer.
Use this option when it is convenient for you to check images by
layering 4 images such as when modification or minute adjustment is
needed after the separation (The advantage of this option is not more
than making it possible to check images by layering images).
* Proof dialog
- Monitor color space
Choose the ICC profile of your monitor.
If the monitor profile is unknown or lacking, color correction
cannot return meaningful result.
- Separated image's color space
Select a profile assigned at "Destination color space" when the
image was separated.
- Mode
Refer to guidebooks explained about Color settings in Adobe
Photoshop. If you check images only on a monitor, leave "Normal".
When it is compared with the printed version in appropriate viewing
condition, the choice of "Simulate media white" may be good.
* Export dialog
- Format
Choose TIFF, JPEG or Photoshop PSD. If you choose Auto-select mode,
the file format is determined based on the extension and then the file
is exported (in case the extension is unknown, TIFF format is chosen).
- Compress pixel data
When this option is turned on, LZW compression is performed for TIFF
images, and PackBits compression is performed for Photoshop PSD
images.
In case of JPEG images, when this option is turned on,
compressibility is preceded and this option is turned off, image
quality is preceded (Turning off this option do not enable Lossless
mode).
- Clipping path
Choose a path you use as a clipping path. Enabling the clipping path
masks outside a path and displays and prints objects on the back.
In several applications (such as Scribus), you can specify a clipping
path again after placing an image on the page.
- Embed color profile
Choose an ICC profile embedded in the file. If unnecessary to embed,
choose "None".
Default CMYK profile and Print simulation profile embed a profile
which preferences have specified. Profile used for the separation
embeds the profile you used for the color separation.
----- Moving together with Preferences
"separate" plug-in acquires the default value of a dialog from
Preferences. Following is the correspondence between plug-in items and
preference items.
Source color space
->RGB profile
Destination color space
->CMYK profile
Rendering intent
-> Softproof rendering intent
Monitor color space
->Monitor profile
Separated image's color space
->Print simulation profile
Proofing mode
->Display rendering intent
("Absolute colorimetric" corresponds to "Simulate media white")
NOTE : If any profiles are not assigned in Preferences, the profile that
is described in platform.h is used as default as before.
If you execute it non-interactively, assigning Profile Path for empty
string and both Rendering intent and Proofing mode for -1 to obtain the
values of Preferences.
----- Sample Scripts
We provide QProof and QExport, which dispense with proofing and file
exporting.
They automates the processing of merging layers -> separation ->
softproofing (exporting). It uses copying and pasting of the visible
part, so the original layers are preserved.
These scripts acquire the assignments for Destination color space or
Rendering intent from Preferences.
In addition, Source color space refers to the embedded profile in the
original image. For items that are not included in Preferences, assign
it on Script dialog.
"Real black overprinting..." option performs overprinting processing
using active layers. Reasonably, in this time, the colors of this layer
are ignored.
Copy qproof.scm and qexport.scm into the script folder.
(Preferences dialog will inform you the location.)
----- TIFF Import plug-in
Installing separate_import(.exe) makes it possible to read CMYK TIFF
files under similar conditions to separating with the separate plug-in.
Choose Import -> From CMYK TIFF from the menu in the toolbox, and then
File Choice dialog opens (in case of GIMP 2.6 or later, from File ->
Create -> From CMYK TIFF).
----- Tips for building plug-ins
Makefile is provided for Windows, Mac OS X and some other OS such as
Linux. You can use it for building. In addition, following information
will be of some help.
* When you build with Windows, the use of MinGW/MSYS environment is
recommended.
* platform.h describes the default values of the profile path, so change
it as necessary. In addition, iccbutton.c contains a search path of
Profile Choice dialog, which should be fundamentally no need to be
corrected.
* When you build for GIMP2.2, delete "-DENABLE_COLOR_MANAGEMENT" in
Makefile or empty macro CM such as "make CM=".
In this case, some functions will be invalidated.
Note: the support of GIMP2.2 has been stopped after the version 0.5.3.
Therefore, the version 0.5.4 or later version may not build for GIMP
2.2.
* Building with the header file of Little CMS version 1.17 or earlier
disables the option of "Use dither" on the dialog.
*Using the header file of version 1.18 or later enables the option
choice. In case the version of runtime library is 1.17 or earlier,
dithering is disabled.
* To use the version 2 family of Little CMS, set the variable USE_LCMS2
at reasonable value to build. You may uncomment the 3rd line of
Makefile or run a make command such as "make USE_LCMS2=yes".
*At present, LCMS2 does not support dithering; therefore a dithering
option is disabled.
* If you build on the environment in which multiple versions of GIMP are
installed, beware of the location of .pc files that pkg-config command
refers. If necessary, configure PKG_CONFIG_PATH environmental variable
properly.
----- Authors
The Separate+ team
Yoshinori Yamakawa <yamma-ma at users.sourceforge.jp>
muscovite
http://cue.yellowmagic.info/softwares/separate-plus/index.html
Localization
Alexandre Prokoudine
Cédric Gémy
Dust
Raymond Ostertag
Zbigniew Małach
Zdeněk Hataš
Authors of original Separate plug-in
Alastair M. Robinson
Sven Neumann
Michael Schumacher
Mat Caughron
----- License
The plug-ins and scripts included in this package are licensed under the
GNU General Public License version 2.
For more information, see COPYING.
rjbgbo, ao contrário do que possa ter pensado, não queria lhe ofender ou causar qualquer dano ao possível coleguismo que possamos estabelecer nesse forum. A questão é que acredito que as versões do Gimp anteriores ao 2.6 não apresentavam nenhuma maneira de converter para CMYK, então, possivelmente, você deve ter tomado essa impossibilidade como regra e postado que não há como fazer. Desculpe, mas eu nem mesmo sou designer pra debater sobre os softwares da área com você, nem pretenderia. E não duvido que tenha até maior experiência que eu em GNU/LInux. Sou prestador de serviços, trabalho com divulgação do linux e com suporte a distribuições para Desktop (se um cliente quer fazer algo, eu me mato para conseguir com que ele faça e não mude o sistema).
Na verdade didaticamente me coloquei como detentor do problema, o caso é que a presidente de uma cooperativa usa Ubuntu tem uma impressora laser Samsung e nela os trabalhos saem perfeitos, mas precisa com frequência enviar trabalhos feitos no Gimp para serem imprimidos em outros lugares (na maior parte nada rebuscado, tudo bem simples) e nesse lugares a impressão não sai tão boa, os caras da gráfica disseram que é por causa do modo de cor CMYK (ou ciano, magenta, yelow key).
Eu não fiquei sentado esperando a resposta como sugeriu, e publico a pergunta não só para esclarecer quem tenha o mesmo problema, mas também para trocar idéias sobre o assunto, não vejo problema algum nisso, isso torna a comunidade mais dinâmica, e se procurar coisas que eu postei nessa comunidade e também na comunidade do Satux Linux verá que grande parte das coisas que postei, eu mesmo respondí.
De qualquer forma desculpe qualquer coisa que possa ter ofendido.
Tópico: como configurar modo de cor cmyk no gimp? (Lida 17611 vezes)