Wordpress Plugin print image from mysql

Im developing a new plugin. I created a new table in the database.

Now I can save a image in type mediumblob, but I cant recover to put in the web site, only appear binary code.

How i can codificate this binary code to appear the image??

This is the code to save image.

    $tipo = $_FILES['vehiculo_inserta_imagen']['type'];
    $tamanio = $_FILES['vehiculo_inserta_imagen']['size'];
    $imagen_temporal  = $_FILES['vehiculo_inserta_imagen']['tmp_name'];
    //leer el archivo temporal en binario
    $fp     = fopen($imagen_temporal, 'r+b');
    $data = fread($fp, filesize($imagen_temporal));
    fclose($fp);        
    //escapar los caracteres
    $data = mysql_escape_string($data);

And I try to recover using this code:

$usuario = esc_attr($current_user->user_login);
$table_name = $wpdb->prefix . "vehiculos";

$vehiculo= $wpdb->get_row("SELECT * FROM $table_name where matricula = '$usuario'; " ); 

Thanks

via Chebli Mohamed