For capturing a person in a biometric system, an image of the original feature is first created and recorded, which is the raw data in the process. The next step uses an algorithm – usually manufacturer-specific – to convert the original image is into a data set referred to as a template. 
Biometric authentication is performed by doing a comparison of the physical aspect you present for authentication against a copy that has been stored. For example, you would place your finger on a fingerprint reader for comparison against the stored sample.Biometric authentication is performed by doing a comparison of the physical aspect you present for authentication against a copy that has been stored. For example, you would place your finger on a fingerprint reader for comparison against the stored sample.Biometric authentication is performed by doing a comparison of the physical aspect you present for authentication against a copy that has been stored. For example, you would place your finger on a fingerprint reader for comparison against the stored sample.Biometric authentication is performed by doing a comparison of the physical aspect you present for authentication against a copy that has been stored. For example, you would place your finger on a fingerprint reader for comparison against the stored sample.