Information security practices based on data hiding for images

This thesis is related with one of the important branch of information hiding technique known as Steganography. The aim of the thesis to examine steganographic techniques used for hiding information on image files and to measure reliability of these techniques. To realize our aim, we examined the techniques used in hiding information on image files in detail. Moreover, we developed an application hiding information in arranged order on images according to commonly used LSB method. This application is evaluated according to the evaluation criteria in steganographic systems like change on cover object, capacity and robustness. To test our application according to the robustness criterion, we developed a steganalysis application to examine the reliability of our computer program.Keywords: Information Hiding, Steganography, Image Steganography, Least Significant Bit Insertion Method