Automatic Extraction of Two Regions of Creases from Palmprint Images for Biometric Identification

Table 1

Definition used for TP, TN, P, and N for three evaluation cases.

	ROI1	ROI2	Both regions
TP	Number of pixels that define the hypothenar region in both the output and the ground truth.	Number of pixels that define the interdigital region in both the output and the ground truth.	Number of pixels that define the hypothenar and interdigital regions in both the output and the ground truth.
TN	Number of pixels that does not define the hypothenar region in both the output and the ground truth.	Number of pixels that does not define the interdigital region in both the output and the ground truth.	Number of pixels that does not define the hypothenar and interdigital regions in both the output and the ground truth.
P	Number of pixels that define the hypothenar region in the ground truth.	Number of pixels that define the interdigital region in the ground truth.	Number of pixels that define the hypothenar and interdigital regions in the ground truth.
N	Number of pixels that does not define the hypothenar region in the ground truth.	Number of pixels that does not define the interdigital region in the ground truth.	Number of pixels that does not define the hypothenar and interdigital regions in the ground truth.