Retinal Microaneurysms Detection Using Gradient Vector Analysis and Class Imbalance Classification
Fig 1
An example of color fundus image containing MAs.
(A) The color fundus image. (B) The corresponding enlarged part of (A) in green channel with indicated MAs (diamond: regular MA, circle: subtle MA, triangle: irregular MA, square: clustered MAs, pentagon: MA close to vessel). Reprinted from [8] under a CC BY license, with permission from Dr. Yalin Zheng, original copyright 2012.