Accession Number:

ADA151539

Title:

Nonlinear Edge Preserving Filtering Techniques for Image Enhancement.

Descriptive Note:

Technical rept.,

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF ELECTRICAL ENGINEERING

Personal Author(s):

• Lee,Y. H.
• Kassam,S. A.

Report Date:

1984-06-01

Pagination or Media Count:

5.0

Abstract:

Recently introduced generalizations of the median filter namely the alpha-trimmed mean and modified trimmed mean filters are reviewed and related to a class of nonlinear filters called selective averaging filters, and two new filters are defined. These filters are examined for performance on noise-corrupted images and shown to have good smoothing characteristics without edge smearing.

Descriptors:

• *IMAGE PROCESSING
• *OPTICAL IMAGES
• OPTIMIZATION
• EDGES
• NONLINEAR SYSTEMS
• FILTERS
• FILTER ANALYSIS

Subject Categories:

• Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE