RECOMMENDATION ITU-R BT.500-14( - Methodologies for …

Monitor processing such as image scaling, frame rate conversion, image enhancer, if implemented, should be done in such a way as to avoid introducing artefacts. ... Categorical scales that assess image quality and image impairment, have been used most often, and the ITU-R scales are given in Table 2-1. In operational monitoring, half grades ... ................
................