tailieunhanh - Ghostscript 9.07 Color Management

The Weidmoos is a bird habitat of European significance. The diverse mosaic of water bodies, muddy areas and reeds provides many species of bird with ideal conditions for breeding and resting. Comparable habitats have all but disappeared in our densely populated and heavily utilised landscape. Over 150 species of bird have so far been confirmed, some of which are endangered on a European level. One of the latter group is the White-spotted Bluethroat, which can frequently be found at the Weidmoos. Marsh Harriers prey over the extensive reeded areas, whilst rare wading birds and waterfowl such as the Common Snipe and the Spotted Crake raise their young here. The Weidmoos is an important. | Ghostscript Color Management Michael J. Vrhel . Artifex Software 7 Mt. Lassen Drive A-134 San Rafael CA 94903 USA Abstract This document provides information about the color architecture in Ghostscript . The document is suitable for users who wish to obtain accurate color with their output device as well as for developers who wish to customize Ghostscript to achieve a higher level of control and or interface with a different color management module. Revision ghostscript9 Artifex Software Inc. 1 1 Introduction With release the color architecture of Ghostscript was updated to primarily use the ICC 1 format for its color management needs. Prior to this release Ghostscript s color architecture was based heavily upon PostScript 2 Color Management PCM . This is due to the fact that Ghostscript was designed prior to the ICC format and likely even before there was much thought about digital color management. At that point in time color management was very much an art with someone adjusting controls to achieve the proper output color. Today almost all print color management is performed using ICC profiles as opposed to PCM. This fact along with the desire to create a faster more flexible design was the motivation for the color architectural changes in release . Since several new features and capabilities have been added. As of the release features of the color architecture include Easy to interface different CMMs Color Management Modules with Ghostscript. ALL color spaces are defined in terms of ICC profiles. Linked transformations and internally generated profiles are cached. Easily accessed manager for ICC profiles. Easy to specify default profiles for source DeviceGray DeviceRGB and DeviceCMYK color spaces. Devices can readily communicate their ICC profiles and have their ICC profiles set. Operates efficiently in a multithreaded environment. Handles named colors spots with ICC named color profile or .