An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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image co-adding
  هم‌افزایش ِ وینه‌ها، ~ تصویرها  
hamafzâyeš-e vinehâ, ~ tasvirhâ
Fr.: addition d'images  

The process of adding several usually low-exposure images to create an image having a significantly higher signal/noise ratio.

See also: → image; → co-; → add.