Khakon Das et al. 2026. IMAGE ENHANCEMENT THROUGH EDGE PRESERVATION: A MULTI-LEVEL HYBRID DENOISING, RIDGELET AND CURVELET BASED TECHNIQUE. International Journal of Computer Information Systems and Industrial Management Applications. 18, 2s (Jun. 2026), 1021–1038. DOI:https://doi.org/10.70917/ijcisim-2026-2186.