hide text

[EDIT: 20110818 13:00 CDT - merge from duplicate - WDR]

i want explanation for hide text and find text

[Information merged from duplicate]

in steganography how hide the text and i want explanation for redc greenc bluec also

[Oleg Komarov]

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

Answer 1

[Image Analyst]

It's easy to hide text. I'll show you how by example below (of course it will be hidden so you'll have trouble seeing it):

There, so that's how you do it. That was easy wasn't it?

Answer 2

[Jan]

Where do you want to hide the text?

• In a cupboard
• in another text
• in a picture (->steganography)
• in a GUI:

 TextH = text(0.5, 0.5, 'asd');
 set(TextH, 'Visible', 'off')

• As encrypted stream on a hard disk?

We cannot guess the details.

Answer 3

[Walter Roberson]

There are multiple ways to hide text or even images in steganography, with different properties or tradeoffs. You could probably find more information by reading the Wikipedia article on the topic.

But it sounds as if you are referring specifically to the File Exchange Contribution http://www.mathworks.com/matlabcentral/fileexchange/11813-lsb-steganography . If so, then redc is just the red channel of the image, IMAGE(:,:,1)