Difference between resampling & resizing

2012 8 21
2 个回答
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回答（2 个）

Jan
Jan 2012-8-21

1 个投票

There is not necessarily a difference between resizing and resampling of an image: Both can lead to the same results. imresize allows to apply different methods to create the resized image. But a resampling needs a specified method for the filtering also.
In theory you can resize an image by changing the resolution only, e.g. by setting the size of a pixel from 1/72mm to 1/96mm. But this does not reflect the operation of imresize. In opposite to this a resampling requires the creation or removing of pixels with an optional filtering.
Azzi Abdelmalek
Azzi Abdelmalek 2012-8-21
编辑：Azzi Abdelmalek 2012-8-21

0 个投票

  1. resizing means changing a size of an image without changing the number of pixels
  2. resampling means changing the number of pixels. this will affect the quality of your image

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