A Novel Edge-Map Creation Approach for Highly Accurate Pupil Localization in Unconstrained Infrared Iris Images

Figure 1

(a) An ideal close-up iris image from CASIA-Iris-Interval, version 3.0; (b) a noisy and non-close-up iris image from CASIA-Iris-Thousand, version 4.0 (CITHV4).

(a)

(b)