question regarding the resize function of OpenCV

asked 2016-03-10 22:01:03 -0600

desri
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updated 2016-03-10 22:01:56 -0600

Does resize function of Opencv first filters the high spatial frequency before downsizing to prevent image-aliasing?

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answered 2016-03-10 22:39:21 -0600

Tetragramm

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Depending on the interpolation method chosen, there are different results. The default linear interpolation reduces aliasing more than INTER_NEAREST, but not as much as the others. For downsampling it's difficult to see much difference between anything other than Nearest.