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            ______    _____     ______    ______  
  ____     /_   _//  / ____||  /_   _//  /_   _// 
 |    \\    -| ||-  / //---`'   -| ||-   `-| |,-  
 | [] ||    _| ||_  \ \\___     _| ||_     | ||   
 |  __//   /_____//  \_____||  /_____//    |_||   
 |_|`-`    `-----`    `----`   `-----`     `-`'   
 `-`

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Text this: Document image binarization using background estimation and stroke edges