File:Pixel-example.png · Wikimedia Commons · See Wikimedia Commons
Also known as px, picture element
光柵圖像中的物理點
A pixel is the smallest unit of a digital image, appearing as a tiny colored square that combines with millions of others to create the pictures you see on screens. Pixels matter because they're the fundamental building blocks that allow computers to display and store images, determining the detail and clarity of everything from photos to videos.
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Wikidata facts
- Subclass of
- point
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- unit symbol
- пкс
- Commons category
- Pixels
- Stack Exchange tag
- stackoverflow.com/tags/pixel
- used by
- raster graphics
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Article · 中文
像素，為影像顯示的基本單位，譯自英文「pixel」，pix是英语单词picture的常用简写，加上英语单词“元素”element，就得到pixel，故“像素”表示「畫像元素」之意，有時亦被稱為pel（picture element）。每个这样的訊息元素不是一个点或者一个方块，而是一个抽象的取樣。仔细處理的话，一幅影像中的像素可以在任何尺度上看起来都不像分离的点或者方块；但是在很多情况下，它们采用点或者方块显示。每個像素可有各自的顏色值，可採三原色顯示，因而又分成紅色、綠色、藍色三種子像素（RGB色域），或者青色、洋紅色（紫色）、黄色和黑色（CMYK色域，印刷行业以及打印机中常见）。照片是一个个取樣点的集合，在影像没有经过不正确的/有损的压缩或相机镜头合适的前提下，單位面積内的像素越多代表解析度越高，所顯示的影像就會接近于真实物体。
Abstract from DBpedia / Wikipedia · CC BY-SA
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