Hello again,
Finally found it by myself. Just have to add layers with this command :
convert A B -background black -compose plus -layers flatten C
Here you can test with this image :
http://zupimages.net/viewer.php?id=16/48/1ika.png
To reveal the hidden secret just do :
convert input.png ...
Search found 2 matches
- 2016-11-29T06:59:10-07:00
- Forum: Users
- Topic: [SOLVED] Bit plane merging
- Replies: 1
- Views: 2049
- 2016-11-29T02:18:40-07:00
- Forum: Users
- Topic: [SOLVED] Bit plane merging
- Replies: 1
- Views: 2049
[SOLVED] Bit plane merging
Hello,
I have found a way to do some steganography with imagemagick and it's capacity to extract bit planes, but now I'm stuck for merging the different bit planes.
I have two images A and B (same size):
A is the mask et B the secret i want to hide.
On A I do :
convert A -fx '(int(u*255)&240)/255 ...
I have found a way to do some steganography with imagemagick and it's capacity to extract bit planes, but now I'm stuck for merging the different bit planes.
I have two images A and B (same size):
A is the mask et B the secret i want to hide.
On A I do :
convert A -fx '(int(u*255)&240)/255 ...