Can /b/ teach me how to find an image within this image? I think the practice is called stenography but I'm not sure.
I think its called google, but I'm not sure
Google just gives me a bunch of classes schools offer for this. All other tutorials I've found just tell you how to find a message in the pictures.
I presume you don't mean the image that's actually a zip folder. I don't know any other ways, but I can almost completely assure you that you won't be able to get to the other image with photoshop by changing hues, saturation etc.
Surprised you guys aren't interested in this: it'd be a brilliant way to hide CP.
Speaking of which, this picture has a hidden cat.
I am, whatever it is its probably useless. If degrees are offered in it I should probably stop trying to learn in an hour.
I'm working on this.
hey, anybody remember this?
Running it through a tool analyzer apparently whatever message this holds can be estimated to have size
Estimated message size [B]:2546.8857659944906
(direct copy paste from report)
yeah, they also had those working with rar files + jpg, called rarjpg
both have been banned ages ago to reduce spread of illegal content
for finding stenographic images within images you need:
>either specialized stenographic software
>or an image, an editing software with different layer filters such as gimp and an image negative
>or extreme knowledge (there's around 259000 bytes of information in your picture, there are literally endless ways of hiding information in your picture)
Whoops I forgot to upload the file.
no password, make sure you have it set up like the photo I linked. You'll get a result file, just change the format to a .txt
I had been fiddling around with the F encoder and I was a dumbass.
This should have a second reaction pic encoded. I didn't test if it worked. Use LSB.D
What you should get
LSB again. Hidden blowjob pic.
You are a master troll. At least I learned a really cool trick from it.
this is really cool...
Here, it should just look like this.
Frozen porn is encoded in this 'desktop background'
again with LSB.D
Alright, did this one myself. Let me know if it works.
this is fun and useful.
Nevermind. It's wanting me to load a workspace, I was trying to load an image... I still don't know what to do after it says, "Experiment finished", though.
If the message is larger than the image you're encoding it in, it prolly won't work.
Are you trying to encode or decode? If you're trying to encode, make sure the picture you're using to encode with is BIGGER than the message. If it's low-res you can still add to the resolution.
In the folder, there's a 'results' thing. Check it.
You need to have modules in the workspace.
When it says experiment finished it saves the file to a results folder inside of the program directory. You will probably have to change the file extension when you find the file though.
Oh, and, more Frozen porn.
If anyone wants to give encode/decode requests I'd love to. I can also do the F encoding method which requires a password.
got this and when I press green arrow I get the error message
Yeah, the cat doesn't have a legit message.
As long as you're using the same algorithms it should be fine. The tree has a specific algorithm but I don't think any of the modules included in VSL do it.
More Frozen porn. Note that to fit the message in I'm lowering the message's res and increasing the cipher's res.
Yes, you could add modules, but odds are you would have to implement them yourself. I don't see an option for adding more encryption/decryption techniques.
u r all fugguts
This one holds an mp3!
Anna is cold- those nips don't lie.
More Frozen porn.
1) Are you encoding or decoding?
2) Take a screenshot of the workplace before the error.
3) If you're gonna show an error copy-paste the whole thing, in my experience so far it describes the error pretty well around halfway through.
I was just trying something. Not really that relevant to the thread. It was supposed to be a different image in the thumbnail, but for some reason it doesn't work anymore.
Since we're on papers:
This seems like a good overview of current steganographic techniques on jpgs
Still taking requests (but I suppose everyone has access to it, but iunno, if you're getting errors while encoding)
Who likes these apples? LSB.
That case was a bit complicated. Let me direct you to this file
to start with.
First, open the jar.
On the right there are modules- open the 'tools' and the 'decoders' folders.
Drag 'input', 'LSB.D' and 'output' into the workplace. LSB.D is the algorithm to decode the LSB cipher.
Using right-click on 'Input', select 'connect' and click in LSB.D. Then right-click on LSB.D, select 'connect', and click 'output'.
Right click on "Input" and select "Select input". Choose the desired file to be decoded.
Press the green arrow when completed.
this is what I'm doing btw.
Ok, I forgot the screenie but it doesn't matter because you're doing it right.
Find the folder you have the vsl-app-1.1.jar in and search through the 'results' folder.
Anything in there, labeled with the date?
the decoded file will be placed in the 'results' folder, a few subfolders down (each experiment is given a different folder, each output module is given a different folder)
Yeah, and it looks like this.
Yeah, there are two more questions. Are you trying to encode or decode? It looks like decode.
1) Are you sure the file you're trying to decode actually has a message?
2) Right click on LSB.D and select 'parameters'. What are startbit and endbit set to? If it's that picture of Velma they need to be set to 1 and 2, respectively. Otherwise set them both to 0, that's how it's been the rest of the thread.
And if it's this pic:
there is nothing on it.
Right click on the decode module and set startbit and endbit to 1 and 2, respectively. I wanted to see if it would make it look much different.
I should apologize for that, setting startbit and endbit to 0 was the norm for the ENTIRE thread.
I'm learning about the algorithms themselves rn and they're clever.
Right now I'm seeing how one can use the other filters. Like, the salt-and-pepper noise filter adds random black and white dots.
>mfv the file size tripled on another test file
Wait, do you need a video tutorial or not?
What happens is, in the color the least significant bit (the one that supplies the least amount of information) is changed for each pixel. This holds the information.
The problem is they might not use the LSB encoding, or they might use LSB with some obscure startbit and endbit, or they might use F5 with a password, or they might use an entirely different algorithm altogether. Or they might literally be pictures of pizza.
>mfw those are probably these kinds of images encoded with cheesy pizza
Look, I'm new to this. I don't know how to decode with command prompts.
This picture has another Elsa pic.
How do I decode gauss blurred images?
Only get error messages when I try
Yeah, you have raw data.
Don't open it with notepad. Open it with an image program.
If you can't, the file might have been a bit corrupted.
Hum... There's a gauss blur filter in vsl. Would there be a gauss blur un-filter...? I'll mess with this and see what I can find, do you know there's a message in it?
I have like 5 descriptions of how itt but if you really want a video tutorial i can make it eventually
I see. Did you put the blur on before or after encoding?
Skimming the thread and can't find the answer so I might as well badger you guys again.
Figured out how to decode images, but I'm having trouble encoding them. Pic is what I have right now. So I selected an image for input, but how do I choose the image it is going to hide inside? I thought right clicking the display box would be the answer but the only options are "Connect, Show image, and "remove." And selecting output just asks you where you want to save it
I found this through this thread so I have no clue
GIMP is most definitely NOT a tool for doing this. At all. Ever.
You need to use the module LSB.E instead of LSB.D. The D is for Decode and the E is for Encode.
Once you do, right click the LSB.E module and select 'message' and choose the message. It doesn't have to be an image- it can be .txt or even an mp3.
Damnit, I can't even run this.
Question. I can hide regular image files but for some reason I get this error when I try to put a .gif in either the input or the LSB.E I get this error
Thanks for helping me out, dude. Take this, it's dangerous to go alone.
No problem! :D
ok fuck it, gifs are difficult.
But this image has sound embedded.
My point was you can embed anything you want in pictures.
It works fine for me.
What player/script are you using for playback?
Pic related, it also has sound. My voice, actually, specially for you <3
sigh, you guys just don't have playback set up..
>google 4chan media player
and then check my pics
This one also has sound
Testing with full song
Oops, here's the image.
Can someone explain what's going on in this thread? Far as i get it you're hiding images within other images, is this in a codey way or are you actually hiding stuff in plain sight? Sorry for being a newfag i guess.
dunno I never messed around with that
back in the day people were hiding entire rar archives in pics, but that's not possible anymore
well, it is, but you can't upload them to 4chan anymore
Almost seems random as to which ones work and which ones I get an error for.
This werks >>550912505
This doesn't >>550878260
Didn't change anything. Just changed the input file
>put anything you want in a rar file
>Place the image in c:. Then place the .rar file that you want to hide in the image in the same directory.
>Open up the command line by clicking, start, run, then type cmd, press enter.
>Navigate to the c:\ by typing, `*cd c:*.
>Type the following
>copy /b nameofimage.jpg + nameofrar.rar chooseanewname.jpg
now when you double click the image it will just open the image.
use winrar to open the rar.
but again, 4chan will detect it
ok, I tried to encode a quick message just to try.
pic is what I get.
mp3, >>550889143 worked but >>550909812 and >>550911250 don't.