SciELO - Scientific Electronic Library Online

 
 issue79Optimization for producing biodiesel from ethanol and waste frying oil with a high concentration of ester author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Revista Facultad de Ingeniería Universidad de Antioquia

Print version ISSN 0120-6230

Abstract

OCAMPO-BLANDON, Cristian Felipe; RESTREPO-PARRA, Elisabeth; RIANO-ROJAS, Juan Carlos  and  JARAMILLO-AYERBE, Pedro Felipe. Rev.fac.ing.univ. Antioquia [online]. 2016, n.79, pp.192-200. ISSN 0120-6230.  https://doi.org/10.17533/udea.redin.n79a18.

The use of color as a strategy for enhancing the contrast is useful for conducting feature extraction procedures in images with high illumination disorders; hence, in order to correct contrast problems in images that were erroneously acquired, a method that automatically searches the discriminant projections of the color map depending on the original data dispersion is proposed. This method is based on techniques such as Fisher discriminant analysis (FDA) and principal component analysis (PCA). Because this is an unsupervised method, it can be used in images that were captured without taking into account the acquisition protocol and with non-uniform illumination. The method was tested using a set of 40 dermoscopy images, and a performance greater than 82% was obtained.

Keywords : Components; contrast enhancement; color; projection PCA; projection FDA; dermoscopy images.

        · abstract in Spanish     · text in English     · English ( pdf )