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

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Text this: Perspective rectification of document images using fuzzy set and morphological operations