D Divya Bharati and P Sneha Latha 01 04 To enhance security and imperceptibility of concealed data the study proposes data concealment approachwithin picture complexareas using Ant Colony Optimisation ACO The algorithm optimizes the embedding of dataand minimises the visual distortion involving focusing more on complex part of an image where the textures and edgeswould cover the changes more efficiently Based on the foraging nature of ants ACO has been applied to combinerobustness and unperceptiveness when selecting the most optimal pixel locations to embed data Experimental resultspoint out that the ACObased method achieves the best in peak signal to noise ratio PSNR and structural similaritySSIM in effectively hiding data with utmost minimal impact on image quality when compared to conventionalmethods It can be deployed in digital watermarking and secret communication due to its impressive optimisation thatensures secure and efficient hiding of data Copyright (c) Journal of Engineering Technology and Sciences. All rights reserved 2026