Krishna Prasad K., and Aithal P.S. “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 August 30, 2025. https://www.srinivaspublication.com/journal/index.php/ijaeml/article/view/189.