RE: filmscanners: Vuescan - A few technical questions

[shAf]

IronWorks writes ...

> What on earth is a 3X3 matrix?

        3 by 3 is the small matrix (or "kernal") around the pixel to be
filtered ... i.e., its nearest neighbors.  Other common filter kernals
are 5x5 (a pixel beyond nearest neighbor), and 7x7 ... and even
larger.

shAf  :o)