DCT Image Steganography

Hide secret messages inside JPEG images. Password-protected and visually undetectable.

Hide a Message Extract a Message Visualize

Features

  • Password Protected AES-128 encrypted verification
  • JPEG Standard Implements full baseline pipeline
  • Invisible Cb channel LSB embedding
  • Multi-format JPEG, PNG, BMP cover
  • Quality Control Configurable JPEG quality
  • Block Overlay Visualize embedded data
  • Caesar Cipher Caesar cipher obfuscation
  • Capacity ~2 bytes per 8×8 block