Mi7oZ is a Simple Lightweight Cross-Platform File2Image Encoder/Decoder. Created using SDL2 libraries. Features GUI and console modes. Mi7oZ is still in development, so stay tuned for new releases on my GitHub page : @aolvos.

Let's say: you have 2 images and you encode second one into the first one as RGB noise:

Comparsion between original and encoded:

Magnified:

Every pixel contains 3 encrypted bytes of encoded file. The main thing is that with Mi7oZ you are able to encode any type of file (max. ~15MB) into any image (resolution must be enough to fit a file). Let's encode flowers picture into black square (original and encoded):

If we zoom in, we'll be able to see data pixels:

• SDL2
• SDL2_image
• SDL2_mixer

sudo apt install libsdl2-dev libsdl2-image-dev libsdl2-mixer-dev
g++ Mi7oZ.cpp -o Mi7oZ -lSDL2 -lSDL2_image -lSDL2_mixer
./Mi7oZ

brew install sdl2 sdl2_image sdl2_mixer
g++ Mi7oZ.cpp -o Mi7oZ -I/opt/homebrew/include -L/opt/homebrew/lib -lSDL2 -lSDL2_image -lSDL2_mixer
./Mi7oZ

• Download development libraries:
  • https://www.libsdl.org/download-2.0.php
  • https://www.libsdl.org/projects/SDL_image/
  • https://www.libsdl.org/projects/SDL_mixer/
• Compile source using MinGW or Visual Studio

sudo apt install libsdl2 libsdl2-image libsdl2-mixer
./Mi7oZ

brew install sdl2 sdl2_image sdl2_mixer
./Mi7oZ

• Download runtime libraries:
  • https://www.libsdl.org/download-2.0.php
  • https://www.libsdl.org/projects/SDL_image/
  • https://www.libsdl.org/projects/SDL_mixer/
• Copy .dll's in .exe folder

./Mi7oZ -h
-=[ Mi7oZ v0.1alpha ]=-
Copyright (C) 2021 Alexander Olovs

Mi7oZ comes with ABSOLUTELY NO WARRANTY;
This is free software, and you are welcome
to redistribute it under certain conditions;
Read LICENSE for details.

*FileA(.png/.jpg) : source image file.
*FileB : any other file.
-e FileA FileB : encode FileB into FileA.
-d FileA FileB : decode FileB from FileA.
-h Display help.

• Select files A and B in Options or by modifying mi7oz.cfg
• Run Encode or Decode operations

So, that's it :) Now you can hide your files inside your photos. Have fun!

GNU General Public License v3.0
Copyright (C) 2021 Alexander Olovs