Extracting Checkerboard Coordinates

This MATLAB source code provides implementations for extracting checkerboard coordinates using various approaches. The program features multiple methods for coordinate extraction, with corner detection algorithms being the most commonly used. Key implementations include Harris corner detection algorithm, which calculates corner responses using image gradients and autocorrelation matrices, and FAST (Features from Accelerated Segment Test) algorithm for high-speed corner detection. The codebase also contains optimization and calibration functions that refine detection results through sub-pixel accuracy adjustments and geometric validation checks. For deeper understanding of the implementation, detailed inline comments and documentation explain the algorithmic workflow, parameter tuning guidelines, and coordinate transformation procedures. The program structure includes main functions for corner detection, helper functions for coordinate sorting, and visualization tools for result verification.