Preface
In order to understand
color management
, which is important to keep your hands around some of the workflow. It is also important to understand a little about the International Criminal Court. ICC or International Color Consortium was created in 1993 by a large number of companies to assist users in creating colors
on the whole process of conferences. ICC profiles are a way that a device can translate the same color information to another. This process applies graphics applications such as Adobe Photoshop
, and set up management systems color X-Rite Pulse or ColorVision Spydet software.
How do I create a profile? </ B> If you want to take a color
completely controlled environment
should all display devices, or color, profile
. Where is it? Software color management (CMS) took readings of their specific devices and compares their color with reference files of color to be defined by the International Criminal Court. For example, a scanner profile that exploration in a so-called objective
IT8
. This exploration is compared with a reference file by the CMS. The differences between what the reference file says the color should be and what the color of the device is in fact the meat of the profile. In principle, a profile of what he says is not perfect on the device. If the scanner seemed to analyze things a little green, or your printer always seems to write things with a magenta cast-these are the things that are taken into account when color profiles of their devices. To complicate things a little further, this process also takes into account the differences between the different colors of paper and ink combinations.
understand their environment. </ B>
color model </ B>: When you hear the word color model, we refer to the method to define or classify the color we will work with them. Examples of this type of RGB, Lab, CMYK, etc.
color space
: A color space is only a variation of the color. For example, under RGB individual variations are common, sRGB, Adobe RGB, and so forth. Some of these rooms is preferable to show by example, sRGB and the wide range of RGB color, while another color spaces are more appropriate for the printing of these ColorMatch RGB and Adobe RGB. Now, it is important to note that all units in our workflow using
own color space
. Meaning, while your monitor, scanner, printer and base their color space at the bottom, and because of what we can see its true scope (gamut) different. Then we lose our consistency
in the devices. It is a problem that we face.
color management using Adobe Photoshop: Step by step
Well, we are now ready for the whole process is a grand, so keep me. In this section, I will describe how color management is working on an entry-level of the CMS as Monaco EZ color or ColorVision Spyder2 these programs> b> actually using the equipment colorimeter
to monitor the calibration and a measure of reflection for the calibration of the scanner. Scanning printed the objective of the house creates the scanner printer profile
. From entry-level such programs usually retail between $ 150 and $ 500.
First stage: Le Moniteur
This step is very simple and is usually full
on the CMS program of your choice. CMS will guide you through the process of adaptation to control the brightness and contrast to the proper configuration, then with the hardware colorimeter, take readings of colors your monitor can produce. His
CMS should also set this profile
as the default profile for your operating system. Take note if your CMS not explain more, you must remove
Adobe Gamma
LOADER.EXE your folder after creating a new monitor profile. AGL is a very minimal monitor correction tool and conflicts with his new profile.
Second stage: scanner
For the scanner profile you want to use a target IT8
. It is a color print reference of approx. 250 color patches. These objectives have been produced under strict control and is measured by ICC approved methods
to produce accurate reference files. Kodak, Colorado, and Fuji is the first manufacturer IT8 targets and must be included in the package, but CMS May be required to buy separately. There are two forms of IT8 goals: reflection and transparent
. Reflexivo aims to create a general profile of reflection for scanning images. Transparent IT8 targets are printed, especially for the film to be settled and therefore can not be used as the world as a destination for reflection. Profiles of the scanner involves scanning the IT8 target
on the same terms and conditions that will be used to scan the originals. This must be taken to NTH degree, as in all settings in the scanner software must be exactly the same
to scan the target than any other original scan. In all Hue / Saturation / Brightness / contrast controls off in your scanner software generates the most effective profile
. Any correction automatic corrections must be turned off, so that the same conditions, the pattern was produced by apply for each scan. At this point
exploration in the IT8 target
, most likely at 200 dpi, and save the file. Some CMS will scan the IT8 target on its own interface, but I recommend monitoring of the object the same program that you use in the future if possible. After scanning a program Photoshop
, do not forget to save the image without profile attached (in Photoshop when you register, you will see a box in the Options Registration
> Color is the label ICC profile means that it is not activated). Now load this image in the CMS, which will take this image and calculate the differences between what the scanner sees compared to what the colors of the IT8 really is.
Third stage: The type
Now, the last piece in the puzzle, write
goals
. As for transparent IT8 target, written goals are more complex. As in the film,
different documents or media
can produce color incredibly different results. This must be reflected in the profile. By creating a profile printer, which is essential to create a description of differences
between what is ideal and what color is the result of paper / ink / quality settings you choose. A profile is created by a professional glossy photo paper does not normally good results if it is used to print on a paper mat heavyweight. The same differences in ink or quality / speed. In its CMS to be able to Save Target printer
to be printed in the selection of graphical programs. If you are invited to choose not to use a profile when it opens. In Photoshop
choose File> Print with Preview
. Modification of the production goes to color. Under
Source Space choose document
. Under the publisher
Space choose Profile
: Same as the source. It is now established in Photoshop to print your profile target. You're not finished yet! Now, between the printer and software of any colour
options for non-
, or zero, or shut down all the color is changed by the driver. Now, write your goals. This is where the academic level of CMS and the different levels of entry. At this point of entry to explore the white, and CMS in real life before using the scanner generated profile to facilitate the exploration, so you can correct the printed version of their objectives. A professional level CMS will have a device that is designed specifically for reading printed media targets.
Fourth stage: Use profiles
Well, now that we have created all the profiles, the time to carry out. You monitor profile to be used in time to get start on the operating system, so we pass the scanner. Exploration of the image again, using exactly the same parameters that were used to create the profile (with the exception of the resolution). In Photoshop
choose Image> Assign profile. Then choose Profile: scanner profile. After all previous steps in Photoshop correctly, you should now be amazed at how the image changes colors appear incredibly like the original you just scanned in from there go to menu Image>; Convert to Profile </ B> and select
Working RGB
on the profile options. This document will convert the natives RGB working space of Photoshop. When the impression that the new printer profile
choose File> Print with Preview
, select the document as its source space (which this time will be your workplace RGB) and the printing choose space Profile:
profile printer
. Remember again to disable the options of any color in the printer. Stop print! Notes on other
profiles
I recommend using color
as the execution of intent when you do it Convert to Profile step and at the 'impression with
Print with Preview
on Photoshop. Attempts to control the representation of how the profile applies to any of the scanner or printed image. Relative Colorimetric has proven to be the best in my essay. Consult the documentation provided with the CMS for more information on any other attempts representation. The profiles are only as accurate as the CMS, which generates and the size of the lens that is used to generate them. The kits for about $ 150 - $ 500 price range are usually around 75-250 patches, while $ 2000 and until you get 729 or more updates. In addition, longer rely on packages physical hardware devices to generate printer profiles, while the least expensive packages use your scanner as print colorimeter. In addition, more expensive packages have a number of options for editing profiles you believe. Sources quoted in this column are as follows: Adobe?
Xrite / Monocase?
ColorVision?
Shawn Tolle, technical consultant. Nigel is the E-commerce project manager for the establishment of advisory Ultimatech located in Carbondale, Colorado. Ultimatech http://www.ultimatechcc.com offer web design for photographers, artists and art galleries and the Fine Art Reproduction Services and SEO.
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