13 Oct
2009
13 Oct
'09
5:58 p.m.
But also for posterity, keep in mind that a pixel is not a little square:
http://www.cs.princeton.edu/courses/archive/spr06/cos426/papers/smith95b.pdf
Albert
I thnk the guy lost me here: The resolution-independent coordinate
system for an image is {(x, y) | 0. £ x £ W/H, 0 .£ y £ 1.}, W and H are the
width and height of the image. The resolution dependent coordinate system
places the edges of the pixels on the integers, their centers on the edges plus one
half, the upper left corner on (0., 0.), the upper right on (W., 0.), and the lower left
on (0., H). See the little squares? They would have edges and centers by this formulation.
So I'll have to take your word for it.
--Joe Ward