sub add_image_imager {
    my ($img, $id) = @_;
    my ($reds, $blues, $greens);
    require Imager;
    my $thumb = $img->scaleX(pixels => 128)->scaleY(pixels => 128);
    for my $y (0..127) {
        my @cols = $thumb->getscanline(y => $y);
        for (@cols) {
            my ($r, $g, $b) = $_->rgba;
            $reds .= chr($r); $blues .= chr($b); $greens .= chr($g);
        }
    }
    addImage($id, $reds, $greens, $blues);
}