It may be a specific sample from a dataset used for facial recognition , biometrics , or steganography research, where individual subjects are often labeled with names followed by a number.
I can then help you track down the specific research it belongs to. klaudia1.png
To help me identify the exact paper or context, could you tell me: It may be a specific sample from a
Where you or any other author names you remember? Any visual details of the image if you've seen it? or steganography research