Khakon Das, Ashish Khare, Nilesh Anand Srivastava, Manish Khare, and Ranjan Kumar Mondal, “IMAGE ENHANCEMENT THROUGH EDGE PRESERVATION: A MULTI-LEVEL HYBRID DENOISING, RIDGELET AND CURVELET BASED TECHNIQUE”, IJCISIM, vol. 18, no. 2s, pp. 1021–1038, Jun. 2026.