function?M1=attack（dphoto）?
a1=photo;
figure（1）;
????????????switch?d?????????????????????
????????????????case?1
?????????????WImage1=a1;
?????????????noise0=20*randn（size（WImage1））;
?????????????WImage1=WImage1+noise0;
?????????????subplot（234）;
?????????????imshow（WImage1[]）;
?????????????title（‘加入白噪聲后圖像‘）;
?????????????M1=WImage1;
?????????????M_1=uint8（M1）;
????????????????
????????????????case?2
?????????????WImage2=a1;
?????????????H=fspecial（‘gaussian‘[44]0.2）;
?????????????WImage2=imfilter（WImage2H）;
?????????????subplot（234）;
?????????????imshow（WImage2[]）;
?????????????title（‘高斯低通濾波后圖像‘）;
?????????????M1=WImage2;
?????????????M_1=uint8（M1）;
?????????????
????????????????case?4
?????????????WImage4=a1;
?????????????WImage4（1:641:512）=512;
?????????????WImage4cl=mat2gray（WImage4）;
?????????????figure（2）;
?????????????subplot（111）;
?????????????imshow（WImage4cl）;
?????????????title（‘部分剪切后圖像‘）;
?????????????figure（1）;
?????????????M1=WImage4cl;
?????????????
????????????????case?3
????????????WImage3=a1;
????????????WImage3=imrotate（WImage320‘bilinear‘‘crop‘）;
????????????WImage3cl=mat2gray（WImage3）;
????????????figure（2）;
????????????subplot（111）;
????????????imshow（WImage3cl）;
????????????title（‘旋轉20度后圖像‘）;??
????????????figure（1）;
????????????M1=WImage3cl;
??????????????????otherwise
????????????disp（‘你輸入的是無效數字，圖像未受攻擊，將直接檢測水印‘）;
????????????subplot（234）;
????????????imshow（a1[]）;
????????????title（‘未受攻擊的含水印圖像‘）;
????????????M1=a1;
????????????end
end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1622??2018-04-29?13:53??數字水印\DCT\attack.m

?????文件???????5174??2018-04-29?13:53??數字水印\DCT\getmark.bmp

?????文件?????263222??2006-05-26?20:33??數字水印\DCT\lena.bmp

?????文件???????2716??2018-04-28?20:22??數字水印\DCT\mark.png

?????文件????????653??2006-05-28?15:34??數字水印\DCT\nc.m

?????文件????????727??2006-05-25?11:25??數字水印\DCT\psnr.m

?????文件??????33968??2018-04-29?13:43??數字水印\DCT\result\DCT1.jpg

?????文件??????33172??2018-04-29?13:43??數字水印\DCT\result\DCT2.jpg

?????文件??????34481??2018-04-29?13:46??數字水印\DCT\result\DCT3_1.jpg

?????文件??????61923??2018-04-29?13:46??數字水印\DCT\result\DCT3_2.jpg

?????文件??????27327??2018-04-29?13:46??數字水印\DCT\result\DCT4_1.jpg

?????文件??????48836??2018-04-29?13:46??數字水印\DCT\result\DCT4_2.jpg

?????文件???????4232??2018-04-29?13:23??數字水印\DCT\watermark.asv

?????文件???????2416??2018-04-29?13:54??數字水印\DCT\watermark.m

?????文件???????1622??2018-04-29?13:53??數字水印\DWT\attack.m

?????文件?????263222??2006-05-26?20:33??數字水印\DWT\lena.bmp

?????文件???????2716??2018-04-28?20:22??數字水印\DWT\mark.png

?????文件????????653??2006-05-28?15:34??數字水印\DWT\nc.m

?????文件????????727??2006-05-25?11:25??數字水印\DWT\psnr.m

?????文件??????34476??2018-04-29?13:55??數字水印\DWT\result\DWT1.jpg

?????文件??????33565??2018-04-29?13:56??數字水印\DWT\result\DWT2.jpg

?????文件??????27852??2018-04-29?13:56??數字水印\DWT\result\DWT3_1.jpg

?????文件??????37275??2018-04-29?13:57??數字水印\DWT\result\DWT3_2.jpg

?????文件??????27852??2018-04-29?13:57??數字水印\DWT\result\DWT4_1.jpg

?????文件??????26788??2018-04-29?13:57??數字水印\DWT\result\DWT4_2.jpg

?????文件???????2808??2018-04-29?13:56??數字水印\DWT\watermark.m

?????文件?????403861??2018-04-29?13:52??數字水印\運行文檔.docx

?????目錄??????????0??2018-04-29?14:08??數字水印\DCT\result

?????目錄??????????0??2018-04-29?13:57??數字水印\DWT\result

?????目錄??????????0??2018-04-29?13:54??數字水印\DCT

............此處省略5個文件信息