Simultaneous contrast improvement and denoising via diffusion related equations


Conference Paper

© 1995 SPIE. All rights reserved. The explicit use of partial differential equations (PDE's) in image processing became a major topic of study in the last years. In this work we present an algorithm for histogram modification via PDE's. We show that the histogram can be modified to achieve any given distribution. The modification can be performed while simultaneously reducing noise. This avoids the noise sharpening effect in classical algorithms. The approach is extended to local contrast enhancement as well. A variational interpretation of the flow is presented and theoretical results on the existence of solutions are given.

Full Text

Duke Authors

Cited Authors

  • Sapiro, G; Caselles, V

Published Date

  • August 11, 1995

Published In

Volume / Issue

  • 2573 /

Start / End Page

  • 342 - 353

Electronic International Standard Serial Number (EISSN)

  • 1996-756X

International Standard Serial Number (ISSN)

  • 0277-786X

Digital Object Identifier (DOI)

  • 10.1117/12.216427

Citation Source

  • Scopus