Color Edge Detection: A Comparative Study

Abstract

A color edge may be measured by the max, mean, median or RMS (root mean square) of the intensity differences on the three color channels. The performance of these edge measures in various color coordinate sytems is studied. It is observed that RMS give the best performance in all the coordinate systems, followed by the mean, max and median in that order. Even in noisy images the RMS yields the smoothest edge output. Though the mean and max are of comparable performance, the max is more appropriate for the Y I Q and K1K2K3 systems while the mean may be preferred to the max in the other systems.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1978
Accession Number
ADA071602

Entities

People

  • P. V. Sankar

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Algorithms
  • Brightness
  • Change Detection
  • Computer Science
  • Coordinate Systems
  • Cross Correlation
  • Data Science
  • Detection
  • Detectors
  • Gaussian Noise
  • Gray Scale
  • Information Science
  • Intensity
  • Noise
  • Security
  • Triangles
  • Universities

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Computer Vision.
  • Systems Analysis and Design