Bala Shanmukha Sowmya Javvadhi, D.V. Manjula. Preprocessing and Augmentation Techniques to Improve Hand Gesture Recognition Accuracy. JOIPAI [Internet]. 2025 Oct. 4 [cited 2026 May 4];11(3):9-21. Available from: https://matjournals.net/engineering/index.php/JOIPAI/article/view/2516