How can I put a background image in an ImageView without it being blurred?

What I want is to put a background image in a ImageView , but when I run the app this image looks blurry and I do not know why, I also put a Play icon and the same thing happens go fuzzy Does this have something to do with the image or is there a way to improve the quality in which the image is displayed?

Java Code:

Movie Class:

private String nombre;
private String sinopsis;
private String genero;
private int duracion;
private int fondo;
private int fondoSecundario;

public Pelicula(String Nombre,String Sinopsis,String Genero,int Duracion,int Fondo,int FondoSecundario)
{
    nombre = Nombre;
    sinopsis = Sinopsis;
    genero = Genero;
    duracion = Duracion;
    fondo = Fondo;
    fondoSecundario = FondoSecundario;
}

protected Pelicula(Parcel in)
{
    nombre = in.readString();
    sinopsis = in.readString();
    genero = in.readString();
    duracion = in.readInt();
    fondo = in.readInt();
    fondoSecundario = in.readInt();
}

 public static final Creator<Pelicula> CREATOR = new Creator<Pelicula>()
{
    @Override
    public Pelicula createFromParcel(Parcel in)
    {
        return new Pelicula(in);
    }

    @Override
    public Pelicula[] newArray(int size)
    {
        return new Pelicula[size];
    }
};

public String Nombre(){return nombre;}
public String Sinopsis(){return sinopsis;}
public String Genero(){return genero;}
public int Duracion(){return duracion;}
public int Fondo(){return fondo;}
public int FondoSecundario(){return fondoSecundario;}

@Override
public int describeContents()
{
    return 0;
}

@Override
public void writeToParcel(Parcel dest, int flags)
{
    dest.writeString(nombre);
    dest.writeString(sinopsis);
    dest.writeString(genero);
    dest.writeInt(duracion);
    dest.writeInt(fondo);
    dest.writeInt(fondoSecundario);
}

So I add an object of the type Film:

listaSerie.add(new Serie("The Strain","Sinopsis","Thriller",1,R.drawable.the_strain_fondo,R.drawable.the_strain_fondo1));

EntroPelicula Class:

Bundle bundle = getIntent().getExtras();
    pelicula = bundle.getParcelable("Pelicula");

    btnReproducirPelicula = (ImageView)findViewById(R.id.btnReproducir);
    mostrarGeneroPelicula = (TextView)findViewById(R.id.mostrarGeneroPelicula);
    mostrarSinopsisPelicula = (TextView)findViewById(R.id.mostrarSinopsisPelicula);


    mostrarGeneroPelicula.setText("Genero: " + pelicula.Genero());
    mostrarSinopsisPelicula.setText("Sinopsis:" + "\n" + "\n" + pelicula.Sinopsis());
    btnReproducirPelicula.setBackgroundResource(fondoSecundario);

    btnReproducirPelicula.setOnClickListener(this);

movie is an object of type Film .

Secondary Background () returns the id of the image that is in the Drawable.

XML Code:

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#212121"
tools:context="com.example.erick.depelis.EntroPelicula">

<ScrollView
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <ImageView
            android:id="@+id/btnReproducir"
            android:layout_width="match_parent"
            android:layout_height="190dp"
        />

        <TextView
            android:id="@+id/mostrarGeneroPelicula"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textColor="#FFF"
            android:textSize="20dp"
        />

        <TextView
            android:id="@+id/mostrarSinopsisPelicula"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"
            android:textSize="15dp"
            android:textColor="#FFF"
        />
    </LinearLayout>
</ScrollView>

</LinearLayout>