BTW, it's important to test it and to let YOUR eyes decide. The reason is that even if it's not real full filtered interpolation, it looks very decent anyway, really.
Syntax :
FastBilinearResize(h, v)
FastBicubicResize(h, v, b, c)
BicublinResize(h, v, b, c)
FastBilinear is like trbarry's simpleresize
FastBicubic is a unfiltered Bicubic resampler
Bicublin use bicubic on Y plane and bilinear on UV planes.
h,v = horizontal and vertical resolutions.
b,c = bicubic coefficients. by default : b=1/3,c=1/3