Steganography: Hiding and Extracting Text in Image using DWT

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Nagaveni S A
Nagaveni S A 2015-3-16
评论： Image Analyst 2022-11-12
I am doing a project on steganography using skin tone detection and DWT. I am using the following steps for embedding: 1)Load image 2)Skin tone detection 3)Cropping (key) 4)DWT 5)Embed secret message in B plane 6)IDWT 7)Image reconstruction. But I seem to have problem regarding the extraction part. The steps I need to follow: 1)Load stego image 2)skin tone detection 3)Crop according to the key 4)DWT 5)extract message. I can perform the first 4 steps. But I don't have any algorithms or steps to extract the message. Please can anyone suggest any methods to extract the text message?

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回答（4 个）

Arun Kumar
Arun Kumar 2015-3-17
it depends on which algorithm you used in embedding section
  6 个评论
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Walter Roberson
Walter Roberson 2017-11-11
Hayder mohammedqasim: probably no-one was notified about your message; certainly Nagaveni was not notified. You can contact Nagaveni by clicking on their username and then using the Contact button in their profile.

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Image Analyst
Image Analyst 2016-3-22
The Mathworks does not allow posting of steganography code on their website.
However I was able to post a demo where I "encoded" text into an image in my File Exchange http://www.mathworks.com/matlabcentral/fileexchange/54155-encoding-text-into-image-gray-levels
Encoding/decoding and watermarking is allowed. Cryptography and steganography is not.
Amal
Amal 2022-11-12
Steganography Hide text in an image Using LSB? Matlab GUI
Amal
Amal 2022-11-12
Steganography: Hiding Text in Image using LSB?
  1 个评论
Image Analyst
Image Analyst 2022-11-12
Why are you Answering @Nagaveni S A again with the same "Answer" you just posted an hour earlier? And I replied to your "Answer" (that was actually a question, not an answer). If you don't like my code, then start writing your own or hire someone to write it for you. I'm not sure what you want or expect from us. You're a man of very few words.

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