This document presents a face recognition based attendance system that automatically marks student attendance using image processing techniques. It uses the Viola-Jones face detection algorithm to detect faces in images and then performs face recognition using algorithms like PCA to identify students and mark their attendance in a database. It also provides alerts to guardians if a student is marked absent by sending SMS or making phone calls. The system aims to automate the manual attendance marking process which is time-consuming and error-prone. It discusses the architecture of the system and the face detection and recognition algorithms used in detail. The paper concludes that the automatic attendance system replaces the manual process and is faster, more efficient and saves time and costs.
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