Skip to main content
. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Ophthalmol Retina. 2019 Jan 31;3(5):444–450. doi: 10.1016/j.oret.2019.01.015

Figure 1: Varying qualities of retinal fundus images.

Figure 1:

Representative images from the (A) Acceptable Quality (AQ), (B) Possibly Acceptable Quality (PAQ), and (C) Not Acceptable Quality (NAQ) classes. Note that as image quality degrades, visualization of retinal vasculature becomes more complex, if not impossible. Because NAQ images were not highly represented in our data set (5.6%), they were grouped with the PAQ images into a single category. The final representation of AQ and PAQ images in our data set was 50.8% and 49.2%, respectively.