Image quality assessment has been an active area of research for many decades, and there are many open research challenges. Subjective image quality assessment is a very intersting and challenging area, and is the ground truth for objective image quality assessment. These objective image quality assessment methods, commonly known as image quality metrics, have the goal of being correlated with perceptual image quality. However, the search for an image quality metric correlated with the percept is still on-going. My research have focused on creating perceptual image quality metrics, and I have an interest in accurately modelling the human visual system.