K. Krishnaprasad, and P. S. Aithal. “A Conceptual Study on Image Enhancement Techniques for Fingerprint Images”. International Journal of Applied Engineering and Management Letters (IJAEML) 1, no. 1 (June 30, 2017): 63–72. Accessed June 15, 2025. https://www.supublication.com/index.php/ijaeml/article/view/548.