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  ____     _    _    _    _    __   __    ______  
 |  _ \\  | || | || | |  | ||  \ \\/ //  /_   _// 
 | |_| || | || | || | |/\| ||   \ ` //     | ||   
 | .  //  | \\_/ || |  /\  ||    | ||     _| ||   
 |_|\_\\   \____//  |_// \_||    |_||    /__//    
 `-` --`    `---`   `-`   `-`    `-`'    `--`

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Text this: Generalized Perona-Malik equation for image restoration