Can we hide a text first in a picture and then hide that image again in one more image?
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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 1 hour ago
AleksanderRas
3,1091937
asked 1 hour ago
Paps JhonPaps Jhon
111
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$begingroup$
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 1 hour ago
AleksanderRas
3,1091937
asked 1 hour ago
Paps JhonPaps Jhon
111
New contributor
Paps Jhon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
$begingroup$
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 1 hour ago
AleksanderRas
3,1091937
asked 1 hour ago
Paps JhonPaps Jhon
111
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.
$endgroup$
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 1 hour ago
AleksanderRas
3,1091937
asked 1 hour ago
Paps JhonPaps Jhon
111
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.
edited 1 hour ago
AleksanderRas
3,1091937
asked 1 hour ago
Paps JhonPaps Jhon
111
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.
edited 1 hour ago
AleksanderRas
3,1091937
edited 1 hour ago
AleksanderRas
3,1091937
edited 1 hour ago
AleksanderRas
3,1091937
3,1091937
asked 1 hour ago
Paps JhonPaps Jhon
111
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 1 hour ago
Paps JhonPaps Jhon
111
asked 1 hour ago
Paps JhonPaps Jhon
111
111
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.
Check out our Code of Conduct.
Paps Jhon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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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 35 mins ago
Daniel LerchDaniel Lerch
24624
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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 35 mins ago
Daniel LerchDaniel Lerch
24624
$endgroup$
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 35 mins ago
Daniel LerchDaniel Lerch
24624
$endgroup$
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 35 mins ago
Daniel LerchDaniel Lerch
24624
$endgroup$
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 35 mins ago
Daniel LerchDaniel Lerch
24624
answered 35 mins ago
Daniel LerchDaniel Lerch
24624
answered 35 mins ago
Daniel LerchDaniel Lerch
24624
answered 35 mins ago
Daniel LerchDaniel Lerch
24624
24624
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.
Paps Jhon is a new contributor. Be nice, and check out our Code of Conduct.
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