What is a standard image aspect ratio?
The aspect ratio of an image is its width divided by its height. Aspect ratios are mathematically expressed as x:y (“x-to-y”) and x×y (“x-by-y”). In still-camera photography, the most common aspect ratios are 4:3 and 3:2, though other aspect ratios, such as 5:4, 7:5, and 1:1 (square format), are also used.
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