How to downsample a image matrix using left and right downsampling

*To*: mathgroup at smc.vnet.net*Subject*: [mg100864] How to downsample a image matrix using left and right downsampling*From*: tenveer <ten.veer at gmail.com>*Date*: Tue, 16 Jun 2009 21:53:43 -0400 (EDT)

HI all i am just stuck with a unique problem ... What i want is to downsample a matrix (image matrix) using two left and right matrices.... e.g if i have a 100 by 100 image matrix X what i want is to downsample X to 25 by 25 matrix Y using two downsampling matrices U and V which are on left and right respectively i.e Y=U*X*V than what will the contents of the U and V matrices. Any help will be appreciated

**Follow-Ups**:**Re: How to downsample a image matrix using left and right***From:*Daniel Lichtblau <danl@wolfram.com>