Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Information Technology Journal
  Year: 2014 | Volume: 13 | Issue: 3 | Page No.: 469-476
DOI: 10.3923/itj.2014.469.476
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

A Novel Bi-dimensional EMD Algorithm and its Application in Image Enhancement

Jianping Hu, Qi Xie, Xiaochao Wang and Xiuping Liu

Abstract:
This study presents a novel bi-dimensional EMD (Empirical mode decomposition) algorithm. It firstly transforms the given 2D data (e.g., an image) into a function defined on a triangular mesh and then uses a novel interpolation method based on bi-Laplace operator to generate the upper and lower envelopes in the sifting process. Essentially, this method still uses thin plate spline interpolation to generate envelopes but it can be implemented much faster than the traditional method based on thin plate spline interpolation because only a sparse linear system needs to be solved when generating an envelope in the sifting process. Furthermore, the proposed bi-dimensional EMD algorithm can be applied in image enhancement and the application examples prove that the image enhancement algorithm based on this bi-dimensional EMD approach is efficient and better than some classical image enhancement algorithms in contrast and lightness controlling.
PDF Fulltext XML References Citation Report Citation
How to cite this article:

Jianping Hu, Qi Xie, Xiaochao Wang and Xiuping Liu, 2014. A Novel Bi-dimensional EMD Algorithm and its Application in Image Enhancement. Information Technology Journal, 13: 469-476.

DOI: 10.3923/itj.2014.469.476

URL: https://scialert.net/abstract/?doi=itj.2014.469.476

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 

Curve Bottom