I know bicubic is similar to lanczos with less ringing and less sharp but still felt like a glaring omission not comparing it with lanczos. That said, great article and great details, I learned a lot.
Cubic interpolation is not included in the showcase since it is a family of filters rather than a single filter — most cubic filters used in practice end up looking similar to Lánczos, although probably a bit less sharp but with less ringing.
I came to say just that. Why are there no pictures comparing the two? A competent high school student could write a method that beats linear and nearest.