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Can we hide a text first in a picture and then hide that image again in one more image?
Announcing the arrival of Valued Associate #679: Cesar Manara
Unicorn Meta Zoo #1: Why another podcast?Algorithm/Technique for SteganographyRating a steganographic system using Blum Blum Shub to locate hidden bitsMaking my steganography code more hard to detect and crackTurning data into seemingly random noiseIs there an algorithm to hide text in another text, while preserving the meaning of the latter?Are there any practical methods of steganography?Is my high school cryptography/steganography science fair project practical?Standard format to store text in LSB steganography?Steganography - How many bytes of information can you hide in a $1024 times 768$ photo?Need of Image Encryption
$begingroup$
Can we hide a text first in a picture and then hide that image again in one more image? using a steganographic algorithm like Least significant bit (LSB)?
encryption steganography
edited 3 hours ago
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Can we hide a text first in a picture and then hide that image again in one more image? using a steganographic algorithm like Least significant bit (LSB)?
encryption steganography
edited 3 hours ago
AleksanderRas
3,1091937
asked 4 hours ago
Paps JhonPaps Jhon
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Paps Jhon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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Can we hide a text first in a picture and then hide that image again in one more image? using a steganographic algorithm like Least significant bit (LSB)?
encryption steganography
edited 3 hours ago
AleksanderRas
3,1091937
asked 4 hours ago
Paps JhonPaps Jhon
161
New contributor
Paps Jhon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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Can we hide a text first in a picture and then hide that image again in one more image? using a steganographic algorithm like Least significant bit (LSB)?
encryption steganography
encryption steganography
edited 3 hours ago
AleksanderRas
3,1091937
asked 4 hours ago
Paps JhonPaps Jhon
161
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Paps Jhon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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edited 3 hours ago
AleksanderRas
3,1091937
asked 4 hours ago
Paps JhonPaps Jhon
161
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edited 3 hours ago
AleksanderRas
3,1091937
edited 3 hours ago
AleksanderRas
3,1091937
edited 3 hours ago
AleksanderRas
3,1091937
3,1091937
asked 4 hours ago
Paps JhonPaps Jhon
161
New contributor
Paps Jhon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
Paps JhonPaps Jhon
161
asked 4 hours ago
Paps JhonPaps Jhon
161
161
New contributor
Paps Jhon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Paps Jhon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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1 Answer
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Yes!
For bitmap images, if you use all the pixels of the image (bad idea, it's very detectable) you need a fist image 8/3 times bigger than the size of the text you want to hide (you can compress it).
- 8 because you need 8 pixels to hide one byte (one bit per pixel).
- 1/3 with color images, because you can hide a bit per channel/pixel.
After this, you can hide this image into another image 8 times bigger (again, 1 byte into 8 pixels).
For JPEG images the approach is different, because you are hiding information into the DCT coefficients. But it's the same idea.
answered 3 hours ago
Daniel LerchDaniel Lerch
25624
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1 Answer
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1 Answer
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$begingroup$
Yes!
For bitmap images, if you use all the pixels of the image (bad idea, it's very detectable) you need a fist image 8/3 times bigger than the size of the text you want to hide (you can compress it).
- 8 because you need 8 pixels to hide one byte (one bit per pixel).
- 1/3 with color images, because you can hide a bit per channel/pixel.
After this, you can hide this image into another image 8 times bigger (again, 1 byte into 8 pixels).
For JPEG images the approach is different, because you are hiding information into the DCT coefficients. But it's the same idea.
answered 3 hours ago
Daniel LerchDaniel Lerch
25624
$endgroup$
add a comment |
$begingroup$
Yes!
For bitmap images, if you use all the pixels of the image (bad idea, it's very detectable) you need a fist image 8/3 times bigger than the size of the text you want to hide (you can compress it).
- 8 because you need 8 pixels to hide one byte (one bit per pixel).
- 1/3 with color images, because you can hide a bit per channel/pixel.
After this, you can hide this image into another image 8 times bigger (again, 1 byte into 8 pixels).
For JPEG images the approach is different, because you are hiding information into the DCT coefficients. But it's the same idea.
answered 3 hours ago
Daniel LerchDaniel Lerch
25624
$endgroup$
add a comment |
$begingroup$
Yes!
For bitmap images, if you use all the pixels of the image (bad idea, it's very detectable) you need a fist image 8/3 times bigger than the size of the text you want to hide (you can compress it).
- 8 because you need 8 pixels to hide one byte (one bit per pixel).
- 1/3 with color images, because you can hide a bit per channel/pixel.
After this, you can hide this image into another image 8 times bigger (again, 1 byte into 8 pixels).
For JPEG images the approach is different, because you are hiding information into the DCT coefficients. But it's the same idea.
answered 3 hours ago
Daniel LerchDaniel Lerch
25624
$endgroup$
Yes!
For bitmap images, if you use all the pixels of the image (bad idea, it's very detectable) you need a fist image 8/3 times bigger than the size of the text you want to hide (you can compress it).
- 8 because you need 8 pixels to hide one byte (one bit per pixel).
- 1/3 with color images, because you can hide a bit per channel/pixel.
After this, you can hide this image into another image 8 times bigger (again, 1 byte into 8 pixels).
For JPEG images the approach is different, because you are hiding information into the DCT coefficients. But it's the same idea.
answered 3 hours ago
Daniel LerchDaniel Lerch
25624
answered 3 hours ago
Daniel LerchDaniel Lerch
25624
answered 3 hours ago
Daniel LerchDaniel Lerch
25624
answered 3 hours ago
Daniel LerchDaniel Lerch
25624
25624
add a comment |
add a comment |
Paps Jhon is a new contributor. Be nice, and check out our Code of Conduct.
Paps Jhon is a new contributor. Be nice, and check out our Code of Conduct.
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