Study and analysis of quality of service in different image based steganography using Pixel Mapping Method (PMM)

In this work authors investigate the performance of state of the art Pixel Mapping Method (PMM) an image based steganography method proposed in the literature. This method is tested against a number of well-known image similarity metrics operate in the spatial domain. All the experiments are performed based on the large data set of PMM based stego images generated at different domain. This image data set is categorized with respect to size, quality and texture to determine their potential impact on various steganalysis performance also. To establish a comparative evaluation of techniques, some undetected results obtained at various embedding rates plays a vital role. In addition to variation in cover and stego image properties, the comparison also takes into consideration different message length definitions and computational complexity issues.