🔒 DCT-Based Image Steganography

A Python-based tool for hiding secret messages inside images using Discrete Cosine Transform (DCT) with a Tkinter GUI.

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📌 Features

✅ Hide text inside images securely using DCT
✅ Extract hidden messages from images
✅ GUI for easy interaction
✅ Maintains image quality after encoding

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🖥️ Technologies Used

• Python 3.x
• OpenCV
• Tkinter
• NumPy, SciPy

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