How to load image from web (url) without resize?

I want to load a 20x11 .png image.

From this url - https://s19.postimg.org/izcdnvkoj/test_pixmap_kyubu.png

The location of the pixels are used to generate levels so I need to avoid resize.

private SpriteRenderer sprRend;

private void Awake()
{
    this.sprRend = this.GetComponent<SpriteRenderer>();
    this.StartCoroutine(this.LoadImage("https://s19.postimg.org/izcdnvkoj/test_pixmap_kyubu.png", 20, 11));
}

private IEnumerator LoadImage(string url, int width, int height)
{
    WWW page = new WWW(url);
    yield return page;

    if (page.error != null)
    {
        Debug.LogWarning("Error: " + page.error);
    }
    else
    {
        Texture2D image = new Texture2D(width, height);
        image.filterMode = FilterMode.Point;
        if (image.LoadImage(page.bytes))
        {
            this.sprRend.sprite = Sprite.Create(image, new Rect(0, 0, image.width, image.height), Vector2.one * 0.5f);
        }
        else
        {
            Debug.LogWarning("Error: Could not load image");
        }
    }
}