Show image from stored route with PHP

You see, I have occupied the following function to be able to obtain the data of my current session:

public function login(){
        $username = $this->input->post("username");
        $password = $this->input->post("password");
        $res = $this->Usuarios_model->login($username, sha1($password));

        if (!$res) {
            $this->session->set_flashdata("error","El usuario y/o contraseña son incorrectos");
            redirect(base_url());
        }
        else{
            $data  = array(
                'id' => $res->id_Usuarios,
                'username' => $res->username,
                'rol1' => $res->nombre,
                'rol' => $res->rol_id,
                'imagen_usr' => $res->imagen,
                'login' => TRUE
            );
            $this->session->set_userdata($data);
            redirect(base_url()."index");
        }
    }

And I wanted to show an image for the "profile" of my system.

The route where it is located is as a field in my database, and the image is in its respective folder:

I always showed the data obtained from my current session in the following way:

<span class="hidden-xs"><?php echo $this->session->userdata("username")?></span>

And what I tried to do to show the image was:

<img src="<?php echo base_url() ?>uploads/perfil/<?php echo $this->session->userdata("imagen_usr")?>" class="logo-lg" alt="User Image">

But I did not succeed ... And I also tried other 3 ways, but nothing.