Image enhancement methods for the visually impaired

O. Bogillo, U. Efron

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


A novel image enhancement algorithm which simplifies image content and enhances image contrast and color saturation is proposed. The capability to improve the image discriminability by patients with central scotoma was evaluated using computer simulation. Image enhancement and discriminability simulation were based on modeling of contrast sensitivity loss for the low vision patient with central scotoma size of ±10 degrees of the visual field. The results are compared with other methods of image enhancement. The simulations results suggest that the proposed method performs well compared with other tested algorithms, showing significant increase in the average image discriminability, measured using the d' parameter.

Original languageEnglish
Title of host publicationApplications of Digital Image Processing XXX
StatePublished - 1 Dec 2007
EventApplications of Digital Image Processing XXX - San Diego, CA, United States
Duration: 28 Aug 200730 Aug 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceApplications of Digital Image Processing XXX
Country/TerritoryUnited States
CitySan Diego, CA


  • Image enhancement
  • Low vision
  • Simulation


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