A method of displaying images on a display. Images from a video playback are displayed on the display with a first luminance profile, the luminance profile mapping video data samples to output luminance of the display. A user initiated modification of a speed of the video playback is detected. A second luminance profile is determined for the display of the video playback, the second luminance profile being determined according to the modified speed of the video playback and a predetermined adaptation speed of a human visual system of a viewer of the video playback. Further images from the video playback are displayed on the display using the determined second luminance profile.