also: ラスタグラフィックス
noun
raster graphics
Technical computing term for images represented as a grid of pixels, as opposed to vector graphics.
ラスターグラフィックスは、画像をピクセルの集まりとして表現します。
Raster graphics represent an image as a collection of pixels.
Variant without the long vowel mark; less common but still used.
Spelling with an interpunct; sometimes seen in technical writing.
Rare variant combining the short form and an interpunct.
Vector graphics use mathematical paths instead of pixels, making them scalable without loss of quality.
Borrowed from English 'raster graphics'.