Extended Method of Least Significant Bits on Colour Images in Steganography

The rapid developments in the field of information technology have led to communication between people taking place in the virtual environment. It is of great importance to protect, hide, and secure this information, particularly in the virtual environment. Steganography is the science that ensures secure and confidential transmission of data to the intended recipient. In this field, data is sent by concealing it within various files. This paper focuses on improving the performance of image steganography through a method that involves altering the least significant three bits to hide data in colored images. Experimental studies were conducted using overlay images from standard databases with dimensions of 512 x 512. In these studies, eight-bit data was concealed within a one-pixel area, and the similarity ratios between the cover image and the stego image quality were examined.