Quote:
Originally Posted by luquinhas0021
How can I find a function z = f(x,y) that passes through the k x p (Same thing of image resolution) values of an image (Values of one component: r, g or b; Y, Cb or Cr), and have a continuus and pretty accurate first, second and third partial derivates and full derivates?
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I may be wrong, but aren't there an infinite number of functions that can pass through any particular set of points? So how would you know which one was "accurate"? They'd all be "correct."