sub convert_to_rgb {
  my $bgr = shift;
  my $bgrLen = length($bgr);
    
  #Unpacking the BGR data gives use easy access to individual bytes.
  my @bgrArray = unpack("C$bgrLen",$bgr);
  my @rgbArray;
    
  my $ct=0;
  while ($ct < $bgrLen) {
    $rgbArray[$ct] = $bgrArray[$ct+2];
    $rgbArray[$ct+1] = $bgrArray[$ct+1];
    $rgbArray[$ct+2] = $bgrArray[$ct];
    $ct+=3;
  }

  #Pack the data to match the input format.
  my $rgb = pack("C$bgrLen",@rgbArray);
   
  return $rgb;
}