1. A method, comprising: receiving an assessed image at a non-transitory computer readable medium; one or more processors: determining a per-pixel image quality vector of the assessed image; determining per-pixel saliency values of the assessed image or a reference image corresponding to the assessed image; and computing a saliency-weighted image quality metric of the assessed image by weighting the per-pixel image quality vector using the per-pixel saliency values; and using at least the computed saliency-weighted image quality metric to perform image or video processing, wherein using at least the computed saliency-weighted image quality metric to perform image or video processing comprises monitoring and adjusting a quality of the assessed image.