Figure 6
From: Biometric quality: a review of fingerprint, iris, and face

Four image features are primarily used for estimating quality of biometric images. Orientation, intensity statistics, power spectrum, and wavelet transform.
From: Biometric quality: a review of fingerprint, iris, and face
Four image features are primarily used for estimating quality of biometric images. Orientation, intensity statistics, power spectrum, and wavelet transform.