Preferred display white prediction model based on mixed chromatic adaptation between “prototypical display white” and surround lighting color

P‐26: IoT Display‐based Non‐Face‐to‐Face Visual Experiment Method for Preferred Color Temperature under Varying Ambient Lights

“…Figure 6 plots the average preferred CCT curve for two test image set. It shows slightly different result with previous work [10]. In the previous study, observers preferred 4700K and 5700K on display screen for ambient light of 3000K and 6000K respectively.…”

“…However, ambient lighting condition which consumers watch TV is generally not a dark room and also it varies. Even worse, the reason why ambient light is not simple feature is that the range of lightness and correlated color temperature (CCT) of the ambient light vary according to the TV users' preference [1][2][3][4][5][6][7][8][9][10]. These various ambient lights not only affect the physical tristimulus values of the display, but also the color perception of human vision.…”

“…Therefore, under varying CCT of ambient lights, studies on the preferred CCT for given images and display types are necessary. For the perceptual studies [2,3,7,10], ambient lighting modules and a TV are installed in an appropriate room and an experiment is conducted while a subject and an experimenter at least are being at the same space for a while. However, under ongoing attack and wide spread of Corona Virus Infectious Disease 2019 (COVID-19), non-contact experimental environment (subjectexperimenter-separated) or equivalent to the social requirements are strongly required in every daily life, industry and also academia.…”

26‐4: Late‐News Paper: Preferred White Point for a System of Mixed Technology Displays Cockpit

“…Generally, it was found out that D65 is not the preferred white point for the entire range of ambient illumination correlated colour temperatures possible. Also, the preferred white point for the same ambient illumination is not the same between different display technologies for example LCD and OLEDs (4,5,18). This means that the usual choice of preferred white point for LCD technology might not be valid for the same ambient conditions on OLED display technology (3,5,17).…”

79‐1: Display white change by the surround ratio

“…It is well-known that the perceived display white is strongly affected by ambient lighting conditions due to the chromatic adaptation mechanism of the human eye. Therefore, the various viewing parameters, such as illuminance and chromaticity of lighting 1,2 , FOV 3 , stimulation type, and luminance of stimulus 4 have been investigated to develop the chromatic adaptation transform.…”