Subba Reddy, K, V Vijaya Kumar, and A P. Siva Kumar. “Texture Classification Based on First Order Circular and Elliptical Ternary Direction Pattern Matrix”. International Journal of Engineering and Technology 7, no. 3.27 (August 15, 2018): 601–608. Accessed August 17, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/18504.