![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
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What does the 2D version of
this hat function look like?
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![](v3_slide0057_image044.gif) |
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![](v3_slide0057_image045.gif) |
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![](v3_slide0057_image046.jpg) |
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![](v3_space.gif) |
![](v3_space.gif) |
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performs
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linear
interpolation
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![](v3_space.gif) |
![](v3_space.gif) |
(tent
function) performs
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bilinear
interpolation
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![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
![](v3_space.gif) |
Better filters
give better resampled images
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Bicubic is common
choice
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fit 3rd
degree polynomial surface to pixels in neighborhood
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can also be
implemented by a convolution
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