Chromatopgraphic otometi tui e masani ona faʻaaogaina i auiliiliga faʻataʻitaʻi e faʻalauiloa ai faʻataʻitaʻiga i totonu o chromoto shorticcracgraphy (HC). E aofia ai le faʻaogaina o se autosacort, o se masini o loʻo otometi le faʻataʻitaʻiga injection provection.