Computer Vision: Algorithms and Applications, Richard Szeliski, 2022 (Springer) - A widely referenced textbook in computer vision, covering image filtering and noise reduction methods, providing context for their application in vision tasks.
Image Filtering (Lecture 2, CS131: Computer Vision Foundations and Applications), Juan Carlos Niebles, Jiajun Wu, 2022Stanford University, Computer Science Department (Stanford University, Computer Science Department) - Lecture notes from a university course, providing an accessible introduction to image filtering concepts, including convolution, average filters, and Gaussian filters.