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

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Text this: Digital Image Watermarking (DIW) yang tahan terhadap transformasi geometris