Title :
Low-energy RGB color approximation for digital LCD interfaces
Author :
Poncino, Massimo ; Macii, Enrico
Author_Institution :
Dipartimento di Autom. e Inf., Politecnico di Torino
Abstract :
The limited resolution capabilities of color displays, coupled with the limited perceptual resolution of the human eye has been widely exploited to reduce the actual number of colors that are simultaneously displayed. In this work, we propose a color approximation technique that is orthogonal to traditional, color simplification schemes, and targets the reduction of the energy required for the transmission of color information on digital LCD interfaces. Our approach leverages the serial nature of the transmission so as to approximate RGB pixel values with suitable codes that minimize the number of transitions on the LCD bus, for a given tolerated image quality level. Application of this scheme on a set of benchmark images shows average savings from 60% to 75%, depending on the image quality
Keywords :
image colour analysis; liquid crystal displays; color displays; color simplification schemes; digital LCD interfaces; image quality level; low-energy RGB color approximation; Electric breakdown; Energy resolution; Flat panel displays; Humans; Image quality; Liquid crystal displays; Pixel; Power measurement; Protocols; Thin film transistors;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.2006.1706500