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Known Image coordinate

Known codition:

  1. four pixels shown in the image $(i,j),(i+1,j),(i,j+1)$ and $(i+1,j+1)$
  2. $a=0.9$ and $b=0.4$

I was able to calculate the bilinear interpolation using the algorithm provided by https://en.wikipedia.org/wiki/Bilinear_interpolation.

But how should we calculate the Average Interpolation and Nearest Neighbor Interpolation?

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  • $\begingroup$ Use the algorithm for calculating these interpolations. After all, a computer can (and literally does) do that without applying the slightest bit of creativity. $\endgroup$ Mar 18 at 6:58
  • $\begingroup$ Thanks, but I am having trouble finding the algorithm for the average interpolation. $\endgroup$ Mar 18 at 8:21

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