Color image sharpening based on collective time-evolution of simultaneous nonlinear reaction-diffusion

Takahiro Saito; Jun Satsumabayashi; Hiroyuki Harada; Takashi Komatsu

doi:10.1117/12.501482

23 June 2003 Color image sharpening based on collective time-evolution of simultaneous nonlinear reaction-diffusion

Takahiro Saito, Jun Satsumabayashi, Hiroyuki Harada, Takashi Komatsu

Proceedings Volume 5150, Visual Communications and Image Processing 2003; (2003) https://doi.org/10.1117/12.501482
Event: Visual Communications and Image Processing 2003, 2003, Lugano, Switzerland

Abstract

Previously we have presented a method for selective sharpness enhancement of monochrome images. Our method is based on the simultaneous nonlinear reaction-diffusion time-evolution equipped with a nonlinear diffusion term, a reaction term and an overshooting term, and it can sharpen only degraded edges blurred by several causes without increasing the visibility of nuisance factors such as random noise. This paper extends our method to selective sharpening of color images. As to the how to extend it, we take into accounts some variations about the treatment of three color components and the selection of the color space. By experiments, we quantitatively evaluate performance of these variations. Among them, the collective treatment of color components based on the simultaneous full-nonlinear reaction-diffusion time-evolution achieves the best performance, and sharpens blurred color edges selectively much better than the existing sharpness enhancement methods such as the adaptive peaking method.

Citation Download Citation

Takahiro Saito, Jun Satsumabayashi, Hiroyuki Harada, and Takashi Komatsu "Color image sharpening based on collective time-evolution of simultaneous nonlinear reaction-diffusion", Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); https://doi.org/10.1117/12.501482

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
12 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

RGB color model

Diffusion

Bromine

Image enhancement

Argon

Image processing

Nonlinear control

Show All Keywords

Keywords/Phrases

Search In:

Publication Years