See if this is better: 

my $newblob = join '', map substr( pack( 'N', $_ ), 1 ), $pixellist =~
+ /\d+/g;

[download]

Update: or maybe this: 

( my $newblob = pack 'N*', $pixellist =~ /\d+/g ) =~ s/.(...)/$1/sg;

[download]

In reply to Re: How to optimize this code by jwkrahn
in thread How to optimize this code by avo

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