A model of visual adaptation for realistic image synthesis
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Photographic tone reproduction for digital images
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Proceedings of the Eurographics Workshop on Rendering Techniques 2000
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High dynamic range (HDR) imaging provides more physically accurate measurements of pixel intensities, but displaying them may require tone mapping as the dynamic range between image and display device can differ. Most tone-mapping operators (TMO) focus on luminance compression ignoring chromatic assets. The human visual system (HVS), however, alters color perception according to the level of luminosity. At photopic conditions color perception is accurate and as conditions shift to scotopic, color perception decreases. Mesopic vision is a range in between where colors are perceived but in a distorted way: red intensities' responses fade faster producing a blue-shift effect known as Purkinje effect.