In this study, the Lord Rama Devotee Algorithm (LRDA), a novel evolutionary optimization technique inspired by the devotion of Lord Rama’s followers to optimizing noise reduction in image processing is presented. LRDA is a new idea that is inspired by the Indian Knowledge. LRDA simulates the collective intelligence of devotees to search for optimal solutions through position and velocity updates. The algorithm is applied to optimize filtering parameters for two types of noise: Gaussian noise and Salt and Pepper noise. For Gaussian noise, LRDA optimizes the sigma value of a Gaussian filter, improving the Peak Signal-to-Noise Ratio (PSNR) to reduce noise while preserving image details. Similarly, for Salt & Pepper noise, the algorithm adjusts the window size of a median filter, aiming to achieve the best noise removal performance without compromising image quality. By simulating the behavior of devotees and non-devotees, LRDA updates both personal and global bests to maximize the PSNR. Experimental results demonstrate that LRDA effectively optimized the Gaussian filter’s sigma value to achieve a PSNR of 25.34, while the median filter for Salt & Pepper noise was optimized to yield a PSNR of 27.02. These results confirm LRDA’s ability to handle different noise types, providing an adaptive and flexible solution for image noise reduction while maintaining visual detail. The algorithm's devotion-inspired mechanism efficiently balances noise reduction with image preservation, making LRDA a promising tool for image processing applications.

Digital Image Processing Gaussian Filter LRDA Median Filter MSE Salt and Pepper noise PSNR