Bpcs steganography implementation
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BPCS Steganography Implementation PowerPoint PPT Presentation


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BPCS Steganography Implementation. Overview. Bit-Plane Complexity Segmentation Split region into bit-planes Hide in “complex” regions Undetectable to human eye. Bitmap Image Format. File Header, Info Header, Pixel Array Pixels stored as 3 bytes, R-G-B 3 bytes per pixel.

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BPCS Steganography Implementation

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Bpcs steganography implementation

BPCS Steganography Implementation


Overview

Overview

  • Bit-Plane Complexity Segmentation

    • Split region into bit-planes

    • Hide in “complex” regions

    • Undetectable to human eye


Bitmap image format

Bitmap Image Format

  • File Header, Info Header, Pixel Array

  • Pixels stored as 3 bytes, R-G-B

  • 3 bytes per pixel


Bit planes and complexity

Bit-Planes and Complexity

  • Break up image into 8x8 pixel regions

  • Select a byte (R-G-B) to hide in

  • Decompose into bit planes, giving 8 bitplanes

  • Measure complexity of each plane, if past threshold, replace with secret data


Our implementation

Our Implementation

  • Original style border length

  • Store 7 bytes of secret image per complex bit plane


Bpcs steganography implementation

  • Original zoomed in

  • Stego-image zoomed in


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