Research Article

A Novel Iris Segmentation Scheme

Figure 5

The result of the proposed eyelid segmentation algorithm: (a) middle area of an eye-image occluded by eyelids, (b) grayscale image of (a) after inner and outer boundaries localization, (c) upper segment of the disk region of iris, (d) upper eyelid boundary detected by the proposed scheme, (e) upper eyelid boundary extracted by the proposed scheme, (f) upper eyelid boundary after morphological dilation operation, (g) edge map of (f), (h) iris after upper eyelid segmented, (i) lower segment of the disk region of iris, and (j) iris after upper and lower eyelids segmented.
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