operations research an introduction chapter 22

Just as important, they can be controlled effectively with common tools used widely by computer artists and programmers. The mathematics of color corrections can be compactly and easily described in a shader. Color corrections generally come in two flavors: per-channel corrections, which alter red, green, and blue components individually and color-mixing operations, in which the value of each output channel may be an operation based on the red, green, and blue components simultaneously. In all forms of color correction, we want to change the color of individual pixels. Understanding how the process works can help developers give real-time applications equivalent visual richness. Most of the imagery we see on television, in magazines, and in movies has undergone very careful color correction and control. Color correction can be used to move color images from one color space to another (say, from Adobe RGB to sRGB) to stylize images (creating illusions such as faded film, cross-processing, or other stylistic variations) to combine art elements from different sources (such as matching color palettes between different video sources, or models made by different artists) or to give broad coherence and mood to entire parts of a game or scene without changing the underlying models and textures. The CD content, including demos and content, is available on the web and for download.Ĭolor correction is part of almost all print and film imaging applications. You can purchase a beautifully printed version of this book, and others in the series, at a 30% discount courtesy of InformIT and Addison-Wesley. GPU Gems GPU Gems is now available, right here, online.

Operations research an introduction chapter 22