A1.31
Mach Bands and Edge Enhancement
Cards in this group · 4
- A1.31.1The visual system actively boosts contrast at luminance step edges, producing Mach bands
- A1.31.2Edge enhancement comes from lateral inhibition, not a change in physical luminance
- A1.31.3Mach banding in smooth gradients gets misread as color banding or posterization defects
- A1.31.4Adding smoother transitions or dither noise weakens edge-enhancement artifacts