The manager (color management), is a system used within programs to process images, which is responsible for reconciling the interpretation of the various devices involved in the process of building an image from capture until his departure final.
Why is color management needed?
The human eye has a wide range of color perception that no device reaches to cover completely, and although some analog film cameras specially designed to capture specific color trends, offer quite acceptable results when processing the image digitalizándola, retouching in a program or finally during printing, the range of color interpretation of these teams, considerably reduces their original quality. Each device has its own range of more or less the previous interpretation and this will affect the final result.
The color manager is based on international standards (ISO, SWOP, and Japan Color print production standards among others), which aim to provide parameters matched for devices both capture, processing and printing, operate under similar rules and thus standardize the results, however, it is very difficult to avoid variations that affect the final output of our work. Consider for example a hamburger giant international chain of yellow letter: there is a procedure manual, which specifies the employee the exact order and the quantities in which to place the ingredients to prepare the burger, but it is impossible to pretend that all gherkins have the same diameter, color and sweetness. In the same way the different models, brands, capacities and conditions of our cameras, scanners, computers, printers and printers, are contributing their own characteristics influencing the final image.
The gamut is the range of interpretation / color reproduction device has a range with respect to the human eye is capable of perceiving. This range is calculated mathematically in models of color selected as part of the available color settings manager, translate or move trying to equate information from one device to another within those involved in the process image. There are several color models and among the most common (RGB, HSL, HSB and CMYK), there are interpretive variations.
These color models corresponding to each of the steps in the production process and an image output end
The solution to these differences is managed precisely through the color manager, which interprets and adjusts as possible acuradamente color between different modes. Color profiles, regulated by the International Color Consortium (ICC), provide the administrator mathematical information on the ranges of perception and interpretation of each device and although in recent years much has been done in this area of graphics production , the process of transfer of the colors from one mode to another, is not perfect and can change when there are elements with different hues management, as in cases where a photographic image and graphics made with saturated colors are combined.
The color manager is always necessary when different devices are used in the process of building an image and even more when these devices are variable, ie, if you regularly print to multiple printers of different model and brand, will surely get different results in each case. When your work does not involve transfers between models such radical color like those between a camera and a printer, you may not have to worry about using a color manager, an example of this is when instead of printing your photos, only you use them to publish electronically.