Pop-Out: A New Cognitive Model of Visual Attention That Uses Light Level Analysis to Better Mimic the Free-Viewing Task of Static Images

Figure 2

Spectral light sensitivity and color wavelength [37]. The red curve corresponds to the luminous efficiency in the day (photopic vision). The night value curve corresponds to the luminous efficiency in the dark (scotopic vision). Between the 2 lighting conditions (photopic and scotopic vision), there is another lighting level (called mesopic vision) where the green wavelength—considered as a merging of enlightened red wavelength (yellow) and blue—is more important than other hues (see Figure 3).