In digital imaging systems, color management is a process where the color characteristics for every device in the imaging chain is known precisely and utilized in color reproduction. The primary goal of color management is to obtain a good match across color devices; for example, the colors of one frame of a video should appear the same on a computer LCD monitor, on a plasma TV screen, and as a printed poster. Color management helps to achieve the same appearance on all of these devices, provided the devices are capable of delivering the needed color intensities. In digital photography, this imaging chain usually starts with the camera and concludes with the final print, and may include a display device. Color management cannot guarantee identical color reproduction, as this is rarely possible, but it can at least give you more control over any changes that may occur. The color management system was standardized by the International Color Consortium (ICC) ( www.color.org AU122: The URL www.color.org has been redirected to http://www.color.org/index.xalter. Please verify the URL. ), and is now used in most computers.
Published in Chapter:
Color Acquisition, Management, Rendering, and Assessment in 3D Reality-Based Models Construction
Marco Gaiani (Università di Bologna, Italy)
Copyright: © 2015
|Pages: 43
DOI: 10.4018/978-1-4666-8379-2.ch001
Abstract
In this chapter are presented a framework and some solutions for color acquisition, management, rendering and assessment in Architectural Heritage (AH) 3D models construction from reality-based data. The aim is to illustrate easy, low-cost and rapid procedures that produce high visual accuracy of the image/model while being accessible to non-specialized users and unskilled operators, typically Heritage architects. The presented processing is developed in order to render reflectance properties with perceptual fidelity on many type of display and presents two main features: is based on an accurate color management system from acquisition to visualization and more accurate reflectance modeling; the color pipeline could be used inside well established 3D acquisition pipeline from laser scanner and/or photogrammetry. Besides it could be completely integrated in a Structure From Motion pipeline allowing simultaneous processing of color/shape data.