Abstract

DURANGO LONDONO, Natalia; BIZAI, Gustavo  and  DROZDOWICZ, Bartolomé. IMPLEMENTATION AND APPLICATION OF RETINEX ALGORITHMS TO THE PREPROCESSING OF RETINOGRAPHY COLOR IMAGES. Rev. ing. biomed. [online]. 2009, vol.3, n.6, pp.36-46. ISSN 1909-9762.

Diabetic retinopathy is a disease caused by complications of the retina, with progressive evolution. This pathology is detected on the fundus eye images, which in most cases have non-uniform illumination. In this paper four type of algorithms, based on the Retinex theory, were implemented and applied to fundus images in order to provide better illumination for later visualization or processing. The purpose was to find more accuracy to detect the presence or not of the disease and thus to get a more accurate approach of diagnosis.

Keywords : Non-uniform illumination; Contrast enhancement; Retinex; Diabetic retinopathy.

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