Scilab Wavelet Toolbox Function
Last update : June 2007

dyaddown - dyadic downsampling

Calling Sequence

Y=dyaddown(x,[EVEN_ODD])
Y=dyaddown(M,[EVEN_ODD],[type])
Y=dyaddown(M,[type],[EVEN_ODD])

Parameters

Description

dyaddown is an utility function for dyadic downsampling. if EVEN_ODD is even, even index entries of input will be kept. Otherwise, odd index entries will be kept. Default is even. Optional argumet type is especially for matrix input downsampling.

Examples

a=rand(1,100);
Y=dyaddown(a);
b=rand(25,25);
Y=dyaddown(b,'r',0);
 

Author

Roger Liu and Isaac Zhi

See Also

dyadup ,