Simple gradient-based error-diffusion method

Xiangyu Y. Hu

doi:10.1117/1.JEI.25.4.043029

Abstract

Simple and efficient modifications of the original error-diffusion algorithm are proposed to remove the structural artifact and enhance the real structures. The input image is separated into the flatten and detailed areas based on a gradient-based measure. While a randomization is applied to remove the structural artifact in the flatten area, a gradient-based diffusion modulation is applied to enhance the real structures in the detailed area. Furthermore, tone modulations are introduced to achieve sufficient structural-artifact breaking without producing notable noise. These algorithms are simple and maintain the computational efficiency of the original methods. Numerical experiments show that this method is not only outperforming previous simple approaches but also able to achieve comparable visual quality with those obtained by previous sophisticated and computationally expensive approaches.

Citation Download Citation

Xiangyu Y. Hu, Xiangyu Y. Hu, } "Simple gradient-based error-diffusion method," Journal of Electronic Imaging 25(4), 043029 (26 August 2016). https://doi.org/10.1117/1.JEI.25.4.043029 . Submission:

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

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

Members: $20.00

Non-members: $25.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years