UP1 Upsampling an image
USAGE: x=up1(y)
image x is obtained from image y by repeating lines and columns
Author: Ali Mohammad-Djafari
Date: Nov. 4, 2002
Test:
y=rand(3); x=up(y); y=down(x)
CROSS-REFERENCE INFORMATION
This function calls:
This function is called by:
build_pyr BUILD_PYR constructs a particular pyramid (Haar) on matrix im.
