File:BicubicInterpolationExample.png
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![File:BicubicInterpolationExample.png](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d5/BicubicInterpolationExample.png/769px-BicubicInterpolationExample.png?20100603174609)
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Summary
[edit]DescriptionBicubicInterpolationExample.png | Illustration of en:Bicubic interpolation on a dataset. Compare with Image:Nearest2DInterpolExample.png and Image:BilinearInterpolExample.png, they share the dataset. |
Date |
Unknown date Unknown date |
Source | self-made in en:Matlab |
Author | Berland |
Matlab code
[edit][Xcoarse, Ycoarse] = meshgrid([0 1 2 3], [0 1 2 3]); [Xfine, Yfine] = meshgrid(linspace(0,3,3000), linspace(0,3,3000)); DataCoarse = [ 1 2 4 1; ... 6 3 5 2; ... 4 2 1 5; ... 5 4 2 3]; DataBicubicFine = interp2(Xcoarse, Ycoarse, DataCoarse, Xfine, Yfine, 'bicubic'); figure surf(Xfine, Yfine, DataBicubicFine); shading flat; colormap(jet); view(0, 90) hold on; plot3(Xcoarse, Ycoarse, 10*ones(size(Xcoarse)), 'k.', 'MarkerSize', 20) colorbar print -dpng -r300 BicubicInterpolationExample.png
The files have been cropped in gimp to remove the empty Matlab border.
NOTE: Bicubic interpolation has the feature that it does not necessarily respect the initial data-interval. In this example:
>> max(max(DataBicubicFine)) ans = 6.0701 >> min(min(DataBicubicFine)) ans = 0.6882
whereas the input data has minimum 1 and maximum 6.
Licensing
[edit]Public domainPublic domainfalsefalse |
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This work has been released into the public domain by its author, I, Berland. This applies worldwide. In some countries this may not be legally possible; if so: I, Berland grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:46, 3 June 2010 | ![]() | 1,976 × 1,540 (65 KB) | Aiyizo (talk | contribs) | Loslessly converted to 98 color mode. |
08:30, 17 June 2008 | ![]() | 1,976 × 1,540 (119 KB) | Berland (talk | contribs) | same picture with finer details | |
09:34, 16 June 2008 | ![]() | 1,322 × 1,042 (33 KB) | Berland (talk | contribs) | ||
10:56, 9 June 2008 | ![]() | 1,308 × 1,042 (33 KB) | Berland (talk | contribs) | Reverted to version as of 10:47, 21 June 2007. Mismatch between text and image | |
08:09, 9 June 2008 | ![]() | 1,024 × 1,024 (211 KB) | Ti chris (talk | contribs) | Bicubic image stretch of a 4x4 pixel grid Category:Image processing Category:Image processing | |
10:47, 21 June 2007 | ![]() | 1,308 × 1,042 (33 KB) | Berland (talk | contribs) | == Summary == {{Information |Description=Illustration of en:Bicubic interpolation on a dataset. Compare with Image:Nearest2DInterpolExample.png and Image:BilinearInterpolExample.png, they share the dataset. |Source=self-made in [[:en:Matlab | |
21:27, 19 June 2007 | ![]() | 1,032 × 889 (19 KB) | Berland (talk | contribs) | == Summary == {{Information |Description=Illustration of en:Bicubic interpolation on a dataset. Compare with Nearest2DInterpolExample.png and BicubicInterpolationExample.png, they share the dataset.. |Source=self-made in en:Matlab |Date |
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