public static ArrayList ExtractAllImagesFromHTMLbyURL(string lv_HTML)
{
  ArrayList lv_Images = new ArrayList();

  try
  {
    //Find SRC URL from IMG tag
    Regex lv_FindAllImages = new Regex(@"]*src\s*=\s*[\""\']?(?
    [^""'>\s]*)[\""\']?[^>]*>");

    // get all the matches depending upon the regular expression
    // and add them to the array.
    MatchCollection mMatchCollection = lv_FindAllImages.Matches(lv_HTML);
    foreach(Match mMatch in mMatchCollection) 
    {
      string lv_Image = mMatch.Groups["ImageFile"].Value;
  
      lv_Images.Add(lv_Image);  
    }

    return lv_Images;
  }
}