> For BILINEAR, x=0.5 is precisely at pixel 0, so that must be used with a > weight of 1. > The other pixel could be either -1 or 1 since it will have a weight of 0 > in either case. > But since we round down, -1 it is. >
Hmm, this is wrong. We do actually read pixel 0 and 1 in this case as you say, though as mentioned it doesn't really matter since the weight of the other pixel is always 0 with a BILINEAR filter. Sorry to create even more confusion. Søren
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