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1 threshold filtering
"The process of reducing a full-color image to an eight-color image. This is done by setting a value for a threshold, which is the cutoff value for each color component of a sample."
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sample — Synonyms and related words: adjunct, assay, barometer, bite, bring to test, canvass, case, case history, characteristic, component, conduct a poll, confirm, constituent, contingent, cross section, cut and try, detachment, detail, distinctive,… … Moby Thesaurus
component — Synonyms and related words: actuator, adjunct, air, amplifier, anode, appurtenance, aspect, atom, atomic particles, base, brute matter, building block, capacitator, cathode, chemical element, circumstance, clock, constituent, contents, contingent … Moby Thesaurus
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