Unrecognized function or variable 'steg_lsb_enc'.

Question

Mert Aydin 2021-5-8

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/824930-unrecognized-function-or-variable-steg_lsb_enc

评论： DGM 2021-5-9

subplot(2,1,1)

imshow(imread('C:\Users\Monster\Desktop\Network Security homework\jesse pinkman.jpg'))

title('sifrelenecek resim')

subplot(2,1,2)

imshow(imread('C:\Users\Monster\Desktop\Network Security homework\walter white.jpg'))

title('orjinal resim')

[enc_img]= steg_lsb_enc('walter white.jpg', 'jesse pinkman.jpg', 2);

subplot(2,1,1)

imshow(imread('walter white.jpg'))

title('orjinal resim')

subplot(2,1,2)

imshow(enc_img)

title('icinde sifre bulunan goruntu')

[enc_img]=steg_lsb_enc('walter white.jpg', 'jesse pinkman.jpg', 7);

subplot(2,1,1)

imshow(imread('walter white.jpg'))

title('orjinal resim')

subplot(2,1,2)

imshow(enc_img)

title('icinde sifre bulunan goruntu')

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

DGM 2021-5-8

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/824930-unrecognized-function-or-variable-steg_lsb_enc#answer_694925

I don't know of any functions called steg_lsb_enc(). I don't find anything in docs or FEX either. I'm sure I could whip up an LSB steganography tool again, but I doubt that helps you if you're expecting some existing syntax and feature conventions.

I'm assuming you got this example code from somewhere. Perhaps whatever package it came with isn't installed on the search path. If you didn't, you might want to run pathtool().

4 个评论
显示 2更早的评论隐藏 2更早的评论

Walter Roberson 2021-5-8

The steganography part is the part that the assignment expects that you will study and learn how to implement. Having someone else provide the code would ruin the assignment.

DGM 2021-5-9

Let me emphasize the bit about "expecting some existing syntax or feature conventions". There are any number of ways to cram some amount of image data into a single-bit channel of sufficient size. There's no guarantee that whatever ridiculous way I choose is the way you were told to do it.

请先登录，再进行评论。