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

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發送短信 : An Improved Imperceptibility and Robustness of 4x4 DCT-SVD Image Watermarking Using Modified Entropy