Hybrid scheme for color dithering

Kenneth R. Sloan Jr.

doi:10.1117/12.19674

1 October 1990 Hybrid scheme for color dithering

Kenneth R. Sloan Jr.

Proceedings Volume 1249, Human Vision and Electronic Imaging: Models, Methods, and Applications; (1990) https://doi.org/10.1117/12.19674
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States

Abstract

This paper presents a hybrid color dithering scheme suitable for rendering continuous tone color images on a CRT display with a small number (on the order of 16-256) of distinct colors. Monochrome (especially bi-level) dithering techniques are well studied. Which of these techniques extend naturally to color? We look at four classes of monochrome dithering techniques and attempt to generalize each one, first to multiple gray-level (but still monochrome) inks and then to a multiple color pallette. In the monochrome case, we discover that texture introduced by the dithering process can significantly affect the appearance of the image. We develop a scheme by which the user can control these texture effects. The primary tradeoff is between very fine grained textures which depend critically on the local gray level and relatively coarser, more obvious, textures which appear uniform across the entire image. In the color case, we have the further complication of choosing a color pallette. We deal primarily with the case where there are a small number of available colors, and where the color pallette is not optimized separately for each image.

Citation Download Citation

Kenneth R. Sloan Jr. "Hybrid scheme for color dithering", Proc. SPIE 1249, Human Vision and Electronic Imaging: Models, Methods, and Applications, (1 October 1990); https://doi.org/10.1117/12.19674

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available