how to enhance an image using bicubic interpolation

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Sharen H
Sharen H 2013-7-3
I have to enhance an image using bicubic interpolation...Can u please help me which builin function i have to use...Thanks in advance

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回答（2 个）

Matt J
Matt J 2013-7-3
编辑：Matt J 2013-7-3
griddedInterpolant() or interp2() can do bicubic interpolation.
No idea how this could produce an enhanced image, however.
  2 个评论
Sharen H
Sharen H 2013-7-3
xx =
1 2 3
2 3 4
3 4 5
F = griddedInterpolant(xx,'cubic') i am getting error Please help
Matt J
Matt J 2013-7-3
编辑：Matt J 2013-7-3
i am getting error
Not me. For me, it works fine,
>> xx=[1 2 3; 2 3 4; 3 4 5];F=griddedInterpolant(xx,'cubic');
>> F(2.5,1.5)
ans =
3
>> F(3,2.5)
ans =
4.5000

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Image Analyst
Image Analyst 2013-7-3
I don't see any reason why that would enhance an image. Did you perhaps really mean to the use word "resize" rather than "enhance"?
The built-in function that does bicubic interpolation is called imresize() and it's in the Image Processing Toolbox.

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