Bicubic Interpolation example needed
<p>Can someone guide me along with the bicubic interpolation math as described on wikipedia with a numerical example?</p>

<p><a href="http://en.wikipedia.org/wiki/Bicubic_interpolation" rel="nofollow">http://en.wikipedia.org/wiki/Bicubic_interpolation</a></p>

<p>I need to understand the math to create the algorithm for image resize. </p>

<p>What i don't understand from the wikipedia article is that how do i yield any of the 16 coefficients aij as mentioned in the article, how did they find the A^-1 matrix at the end? What's the point of forming the matrix? </p>

<p>I do understand bilinear interpolation by the way. </p>

<p>Can someone please illustrate the math with a numerical example or a link to one with numerical example? Thanks in advance.</p>
