Image Steganography

This project was submitted to University of Mumbai as a partial requirement for the fulfillment of Mini Project 2B (CSM501). It utilizes Least Significant Bit (LSB) method to encode a payload into an image.

Features of imgstegano.py

• Allows you to encode / hide a text or a file of any type (even a zip file) into an image.
• If the text or file to be encoded it too large, it automatically resizes the image to fit the payload size.
• Also allows you to set a password on the encoded payload and encrypts it using AES.
• The decoder automatically identifies the type of the payload and whether it is encrypted and prompts the user accordingly.
• Very intuitive User Interface.

How to run

• Install the packages in requirements.txt globally or in a virtual environment.
• Run the program using the command python imgstegano.py.

How to use

• Encoding

  • Select the Encode tab on the top.
  • Choose the target image.
  • Select the type of payload (text / file),
  • Enter the payload.
  • Set a password (leave empty of not required).
  • Click on the Encode button.

• Decoding

  • Select the Decode tab on the top.
  • Choose the image with encoded payload.
  • Click on the Decode button.

Limitations

• The program is only tested with the following image types:
  • Color Scheme: 8 Bit RGB, RGBA, CMYK
  • Format: PNG, BMP
• Works well with small payload (< 64 KB).

Screenshots

Credits for Test Images

• venice.png : Sea Glass