HIDE TEXT FILES INTO IMAGE

Hides text files(.txt and .m) into bitmap image

Description

The program 'make.m' will run the gui program to perform the hiding of text files(.txt files and .m files) into bitmap images.

A 800x600 bitmap image can hold text files having a total of more than 30,000 words.

Important Note : Apparently this is not working on MATLAB 7.4 and 7.8, and I am assuming won't work on MATLAB 7.x versions. I don't have MATLAB 6.5 anymore but it should work on that.

• Acknowledgements: This submission has inspired the following:; Hide the six text pages in a color image, Hide Images In Image
• MATLAB release: MATLAB 6.5 (R13)

[Alex Jack]

Dear Friend
How to hide Image into Image and extract it again (.jpg)

[sen kan]

 

[kavi tha]

 

[safa salem]

good

[barani selvakumar]

i am a final year engineering student. i am working on hiding audio in image. help me with supporting code.

[Divakar Roy]

Use the Code ‘ song2img.m’ from:
 http://www.mathworks.com/matlabcentral/fileexchange/10291-encipher-image-into-sound
to convert audio to image
and then use Code ‘hide_image.m’ from : http://www.mathworks.com/matlabcentral/fileexchange/26217
 to hide that image into one bigger source image.

Or you can combine these two codes to form one compact code to directly do audio to image conversion, would be more efficient of course.

Good Luck!!

[nida thakur]

 

[nida thakur]

very good work, but i need to know the algorthim you worked on, and if there is any paper plz help me out

[mavs favs]

I will explain the theory here : Every alphabet is encoded with 8 bits, assuming there are 256 such alphabets though there are around 200 such alphabets taken in this project. Now every pixel of image is made 'even' by rounding and then added 0/1 depending on the alphabet's corresponding 8 bit value. Therefore 8 pixels are needed for encoding one alphabet. And this process is continued till all alphabets in all text files are covered. Hope this helps. Good luck!!

[Divakar Roy]

Sorry about the confusion that mavs favs is me. Created long time ago for contest purpose :)

[nida thakur]

thnx...info was quite informative

[Priyabrata Ghorai]

Hi Sir, I used the code in MATLAB6.5.. But only encoding is done... It is showing some errors in decoding...

The error it showing is:
??? Index exceeds matrix dimensions.

Error in ==> C:\Documents and Settings\Administrator\Desktop\hide text file in an image\getbackfiles.m
On line 63 ==> set_2_zero_ele=[set_2_zero_ele line_array(i,2)+2];

Please help me sir...

[Divakar Roy]

Hello Priyabrata, are you using MATLAB 7.x? This project was made on MATLAB 6.5 and haven't been updated to work on new versions. It's mentioned in the description.

- Divakar

[Priyabrata Ghorai]

oh fine sir... what is the algorithm behind this code...?Or do you have theory on this...???

 And did you write code for Image steganography which will be better than this method? If you have better code with high embedding capacity, could you please mail it to me. My email id is [e-mail] ...