Changes between Version 3 and Version 4 of Ticket #4218, comment 2


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Timestamp:
Sep 17, 2016, 5:26:59 PM (8 years ago)
Author:
FeXoR

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  • Ticket #4218, comment 2

    v3 v4  
    22https://en.wikipedia.org/wiki/Bicubic_interpolation
    33(see "Bicubic convolution algorithm")
    4 There seems to be a 1/2 missing though!
    54
    65An alternative would be using simple bicubic interpolation 2 times.
    76That would be more precise throughout fx, fy in [-1; 2] but also slower.
     7It's also more prone for oscillations (Runge's phenomenon) but that should'nt be a problem at 3rd degree polynimials.
    88{{{
    99Third degree polynomial: f(x) = ax^3^ + bx^2^ + cx + d