An efficient Switching Median Filter for Salt & Pepper Impulse Noise Reduction. - Krishnan Nallaperumal; Justin Varghese; Subash Saudia; K. Krishnaveni; Santhosh P. Mathew; P. Kumar (ICDIM, 2006)

An Efficient Morphological Reversible Contour/Edge Representation Using Overlapping Line Components. - Justin Varghese; Subash Saudia; Krishnan Nallaperumal; Santhosh P. Mathew; S. Arumugaperumal; Julie Joy (ICETET, 2008)

An Adaptive Clustering Based Non-linear Filter for the Restoration of Impulse Corrupted Digital Images. - Subash Saudia; Justin Varghese; Krishnan Nallaperumal; Santhosh P. Mathew; S. Allwin; S. K. Thakur (ICVGIP, 2008)

Enhanced Morphological Contour Representation and Reconstruction using Line Segments. - Santhosh P. Mathew; Philip Samuel; Justin Varghese; S. Arumugaperumal; Subhash Saudia; Krishnan Nallaperumal (NaBIC, 2009)

Image Denoising And Enhancement Using Multiwavelet With Hard Threshold In Digital Mammographic Images. - Kother Mohideen; Arumuga Perumal; Nallaperumal Krishnan; Mohamed Sathik (Int. Arab. J. e Technol., 2011)

Real Time Insignificant Shadow Extraction from Natural Sceneries. - Subramanyam Muthukumar; Ravi Subban; Nallaperumal Krishnan; P. Pasupathi (ISI, 2013)

Image Restoration by Using Evolutionary Technique to Denoise Gaussian and Impulse Noise. - Nallaperumal Krishnan; Subramanyam Muthukumar; Ravi Subban; D. Shashikala; P. Pasupathi (MIKE, 2013)

Real-Time Hard and Soft Shadow Compensation with Adaptive Patch Gradient Pairs. - Subramanyam Muthukumar; Krishnan Nallaperumal; Ravi Subban; Pasupathi Perumalsamy; Shashikala Durairaj; S. Gayathri Devi; S. Selva Kumar 005 (SIRS, 2014)

Hybrid Shadow Restitution Technique for Shadow-Free Scene Reconstruction. - Muthukumar Subramanyam; Krishnan Nallaperumal; Ravi Subban; Pasupathi Perumalsamy; Shashikala Durairaj; S. Selva Kumar 005; S. Gayathri Devi (SIRS, 2014)

EIAASG: Emotional Intensive Adaptive Aspect-Specific GCN for sentiment classification. - Chockalingam Arumugam; Krishnan Nallaperumal (Knowl. Based Syst., 2023)

Deep learning techniques on 3D-MRI lung images for detection and segmentation of COVID-19 virus. - J. Syed Nizamudeen Ahmed; M. Mohamed Sathik; Krishnan Nallaperumal; Senthamarai Kannan Kaliaperumal; Parasuraman Kumar; T. Arumuga Maria Devi (Expert Syst. J. Knowl. Eng., 2025)