About the data set

Color glare in the scotopic luminance range

This data set shows glare comming from a large color light source affects detection thresholds at low luminance levels. The original data from: Mantiuk R, Rempel AG, Heidrich W. Display considerations for night and low-illumination viewing. In: Proc. of Symposium on Applied Perception in Graphics and Visualization - APGV ’09. 2009:53-58. link.

The stimuli are 1 cpd dark Gabor patches of background luminance of 0.002 cd/m² seen in the presence of a strong source of glare. The prototype display with individually controlled red, green and blue LED backlight was used to create narrow bandwidth glare light.

Stimuli list

All stimuli shown at the detection threshold magnified x10. The visible banding (quantization) is due to 8-bit image files and display panel and is not present in the actual data.

red_10

mean luminance = 1.61504 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

red_22

mean luminance = 3.55355 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

red_46

mean luminance = 7.43062 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

red_100

mean luminance = 16.1485 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

green_10

mean luminance = 0.933149 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

green_22

mean luminance = 2.0523 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

green_46

mean luminance = 4.29238 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

green_100

mean luminance = 9.33109 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

blue_10

mean luminance = 0.873633 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

blue_22

mean luminance = 1.92176 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

blue_46

mean luminance = 4.0181 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

blue_100

mean luminance = 8.73457 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

white_0

mean luminance = 5.48152e-05 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

white_10

mean luminance = 3.42098 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

white_22

mean luminance = 7.52664 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

white_46

mean luminance = 15.7396 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05

white_100

mean luminance = 34.2141 cd/m²
pixels_per_degree = 7.81331
viewing_distance = 0.87
rgb_display = led-lcd
surround_l = 3e-05