Computer Vision: Algorithms and Applications, Richard Szeliski, 2010 (Springer) - Covers image correlation, sum of squared differences (SSD), normalized cross-correlation (NCC), and the sliding window method as core concepts in image processing.
Template Matching, OpenCV team, 2024 - Official documentation for the cv2.matchTemplate function, detailing its usage, parameters, and supported matching methods like TM_SQDIFF and TM_CCORR_NORMED.