"image matting" meaning in English

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      "expansion": "image matting (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Artificial intelligence",
          "orig": "en:Artificial intelligence",
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      ],
      "glosses": [
        "Extraction of an object in the foreground of an image from its background."
      ],
      "id": "en-image_matting-en-noun-sDYeb4Ow",
      "links": [
        [
          "machine learning",
          "machine learning"
        ],
        [
          "Extraction",
          "extraction"
        ],
        [
          "object",
          "object"
        ],
        [
          "foreground",
          "foreground"
        ],
        [
          "image",
          "image"
        ],
        [
          "background",
          "background"
        ]
      ],
      "qualifier": "machine learning",
      "raw_glosses": [
        "(machine learning) Extraction of an object in the foreground of an image from its background."
      ],
      "tags": [
        "uncountable"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "extraction of a foreground object",
          "word": "摳圖"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "kōutú",
          "sense": "extraction of a foreground object",
          "word": "抠图"
        }
      ]
    }
  ],
  "word": "image matting"
}

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  ],
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    {
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      "expansion": "image matting (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "Extraction of an object in the foreground of an image from its background."
      ],
      "links": [
        [
          "machine learning",
          "machine learning"
        ],
        [
          "Extraction",
          "extraction"
        ],
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          "object",
          "object"
        ],
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          "foreground",
          "foreground"
        ],
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          "image",
          "image"
        ],
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          "background",
          "background"
        ]
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      "raw_glosses": [
        "(machine learning) Extraction of an object in the foreground of an image from its background."
      ],
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        "uncountable"
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  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "extraction of a foreground object",
      "word": "摳圖"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "kōutú",
      "sense": "extraction of a foreground object",
      "word": "抠图"
    }
  ],
  "word": "image matting"
}