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像素長寬比

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像素長寬比 1:1 像素寬高比(pixel aspect ratio, PAR)是描述數位影像像素中,寬和高之間的比率

大多數的數位成像系統,會將影像顯示為很多微小的正方型像素格。但部分成像系統,尤其是必須與標準畫質電視相容者,會將影像顯示為長方形的像素格。像素格的寬和高不一定等長,因此就用像素寬高比來描述之。

像素寬高比通常會用於描述標準畫質電視相關的影像,除了少數特例以外。大多數的成像系統,包括遵守電影電視工程師協會標準和實務的系統,皆是使用正方像素。

像素長寬比 2:1

參見

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長寬比(影像)

外部連結

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像素長寬比
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