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Jyutping kau1 tou4
Pinyin kōu tú

Definitions (Wiktionary)
  1. verb, Mainland-China, verb-object
    to remove the background from an image
    (syn.) 退地, 去背

摳圖 [抠图]

Jyutping
Pinyin kōu tú

Definitions (CC-CEDICT)
  1. (image processing) to extract a foreground object from its background; image matting