What, variable y is doing in this program? function [y] = symextend(x,Nnum) y(:,1:Nnum) = fliplr(x(:,1:Nnum)); y = [fliplr(x(:,1:Nnum)) x x(:,end:-1:end-Nnum+1)]; y = [flipud(y(1:Nnum,:)); y ;y(end:-1:​end-Nnum+1​,:)];

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What, variable y is doing in this program?
function [y] = symextend(x,Nnum)
y(:,1:Nnum) = fliplr(x(:,1:Nnum));
y = [fliplr(x(:,1:Nnum)) x x(:,end:-1:end-Nnum+1)];
y = [flipud(y(1:Nnum,:)); y ;y(end:-1:end-Nnum+1,:)];
I'm doing project on image processing, kindly give me some suggestions.

Answers (1)

Walter Roberson
Walter Roberson on 13 Mar 2013
The variable "y" is the output variable. Whatever is written into "y" will be returned from the function.

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