visual comparison

• side-by-sidePositioned next to another
• contrastNotable difference between things
• juxtapositionAdjacent contrasting placement
• differenceWay things contrast
• similarityState of being alike

matching · overlay · split-screen · examine · scrutinize · benchmark · appraisal · swipe · slider · thumbnail · gallery · inspect · discern · twin · mirror · parallel · evaluate · gauge

• Lab Analysisspectrometer, spectrophotometry, spectroscopy, colorimeter, photometer