Hiding Secret Images

How'd Saddam get the ring from Frodo?

crazy. thanks for the lesson though, i think i'll have fun with it in the near future.

That = ace.

Can this be done in The Gimp I wonder?

A kind of visual cryptography. same detection idea as RuiMark(Japanese).

I would just like to welcome our Japanese visitors. (If any of you got a spare Sony DSC-U20, you know where to reach me.)

Since midnight, the Bush/Saddam image has been downloaded over 33,650 times, almost entirely by Japanese web surfers. I never knew that weblogs were so big in Japan.

Great, but I cant get this to work in Paint Shop Pro 7 :|

Ooh, be careful - a terrorist might see this technique and use it as a new way of transmitting their deviously evil plans, instead of hiding them in porn images like they used to.

Can someone please explain as how to make the 2x2 pattern? I dont understand

Neat Trick, but how do you do it in Paint Shop Pro or Open Canvas?

Can't get it to work...anyone have a better explanation?

I made a little program that makes "hiding secret images" on Windows. You can get the program from my Japanese web cite(http://hirax.net/dekirukana7/ctrl_a/CtrlAmagic.zip).

If you have two Bitmap files, all you have to do are
(1) loading 1st image from "Load Visible Image" button,
(2) loading 2nd image from "Load Hiden Image" button,
(3) ajdusting image by "Hiden Image Average Value" and "Hiden Image Contrast Value",
(4) and save final image by "Save To File".

I tried it out, and it wouldnt work for me for some reason. Do you think you could email me a PSD of it, and then I can just replace the images? Thanks

that's very naughty...

Wow, Japanese people are good at photo editing...

I couldn't get it to work either but my Blonde kicked in and I clicked on the pic.and a little square on the bottom right hand came up..click on the sqaure and voila...formidable!

Woah thanks. This is a cool technique, thanks.

FYI - it doesn't work in mozilla/phoenix; only IE

Hey, Mac users who obviously couldn't see the trick: If you have Dreamweaver, insert the image into a new web page and then select it.

That CTRL + A magic thing won't work. It doesn't have any choices for the file type when you save the final thing, and I can't figure out how to do it in Photoshop, either.

Can someone e-mail me on how to get the 2X2 pixel checkerboard happening on Photoshop? Tried for a while and still can't find how.

For some reason the images fail to show up properly on a WinXP machine with MSIE. It works fine on my home XP box with MSIE =\

Nothing happened that I noticed for me!

>> Can this be done in The Gimp I wonder?
Dude, /fuck/ the GIMP.

I cant figure out how to use that program. Is there a better program out there, where you just add both images and it does it automatically for you?

>> Can this be done in The Gimp I wonder?

Yes, this can be done in the GIMP. It is even easier than in Photoshop, thanks to the checkerboard plug-in. The steps are: load your two images in two layers, add a mask to the top layer (right-click on the layer, then "Add Layer Mask"), then run the checkerboard plug-in (Filters->Render->Pattern->Checkerboard), set the size to 1 (default is 10) and there you go! Then you can play with the opacity and other parameters.

this doesn't work. either that or the instructions just suck. You all suck.

Any idea why this doesn't work on mozilla?

So basicly Mozilla shades it properly and I.E. cheats, but let's us have fun with a little trick. Nice one.

Ben