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Table 2 Display system and viewing conditions in human visual analysis

From: Development of an algorithm to automatically compress a CT image to visually lossless threshold

Display system
 Display resolution 1536 × 2048 pixels
 Display size 31.8 × 42.3 cm
 Image resolution 1483 × 1483 pixels (stretched using bilinear interpolation)
 Luminance 1.5–408.2 cd/m2
Viewing conditions
 Ambient room light 30 lux
 Reading distance 42–77 cm
 Window setting level, 20 HU; width, 400 HU for abdomen CT,
level, −600 HU; width, 1500 HU for chest CT, not adjustable
 Magnification not allowed
 Reading time not constrained