Changes between Version 3 and Version 4 of Ticket #4218, comment 2
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- Sep 17, 2016, 5:26:59 PM (8 years ago)
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Ticket #4218, comment 2
v3 v4 2 2 https://en.wikipedia.org/wiki/Bicubic_interpolation 3 3 (see "Bicubic convolution algorithm") 4 There seems to be a 1/2 missing though!5 4 6 5 An alternative would be using simple bicubic interpolation 2 times. 7 6 That would be more precise throughout fx, fy in [-1; 2] but also slower. 7 It's also more prone for oscillations (Runge's phenomenon) but that should'nt be a problem at 3rd degree polynimials. 8 8 {{{ 9 9 Third degree polynomial: f(x) = ax^3^ + bx^2^ + cx + d