MATLAB Implementation for Converting Between Grayscale, Indexed, and Truecolor Images

This document introduces a MATLAB-based solution for interconversion between grayscale, indexed, and truecolor image formats. The program employs MATLAB's built-in image processing functions including rgb2gray() for RGB-to-grayscale conversion, gray2ind() for grayscale-to-indexed transformation with automatic colormap generation, and ind2rgb() for reconstructing truecolor images from indexed data. The implementation handles color space transformations using standard algorithms: luminance-based weighting for grayscale conversion, color quantization for indexed image generation, and color mapping operations for format restoration. The code structure incorporates error checking for valid image input formats and automatic data type handling to maintain image integrity during conversions. Designed with straightforward execution, the program requires no additional configuration - simply run the main script to process compatible image files. This utility streamlines format adaptation for various computer vision applications, including data preprocessing for machine learning pipelines and compatibility adjustments for visualization tools.