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The aspect ratio of an image is defined as

  • A.The ratio of width to its height measured in unit length.
  • B.The ratio of height to width measured in number of pixels.
  • C.The ratio of depth to width measured in unit length.
  • D.The ratio of width to depth measured in number of pixels.

Answer: A

The aspect ratio of an image is the ratio of its width to its height, measured in the same unit of length, such as 4 : 3 or 16 : 9. The statement about the ratio of height to width, or those with depth, do not define the aspect ratio: depth is a third dimension that a flat image does not have, and the height-to-width ratio is its inverse. The keyed answer is the first option, the ratio of width to its height measured in unit length.

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