This document summarizes a research article that proposes a new image steganography technique based on ant colony optimization (ACO) algorithm. The technique aims to increase data hiding capacity and optimize image quality. It uses integer wavelet transform to transform image coefficients, then applies an ACO algorithm to find optimal coefficients for embedding secret data. Experimental results on sample images showed no visual difference between original and stego images, demonstrating the technique increases robustness and embedding capacity without degrading image quality. The proposed technique is compared to existing methods based on peak signal-to-noise ratio, showing it provides higher PSNR values and better image quality.