image subtraction
画像減算
Dark frame subtraction – where a neutral "blank" frame is subtracted to reduce noise
Image differencing
Blink comparator
Palomar Transient Factory – a wide-field survey that uses image subtraction
/suto3/google.iconimage subtraction
/suto3/Google画像検索.iconimage subtraction
/suto3/Google定義検索.icon image subtraction
/suto3/wikipedia.iconimage subtraction
/suto3/weblio.icon image subtraction
/suto3/kotobank.icon image subtraction
/suto3/jisho.icon image subtraction