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BPCS Steganography Implementation

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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  1. BPCS Steganography Implementation

  2. Overview • Bit-Plane Complexity Segmentation • Split region into bit-planes • Hide in “complex” regions • Undetectable to human eye

  3. Bitmap Image Format • File Header, Info Header, Pixel Array • Pixels stored as 3 bytes, R-G-B • 3 bytes per pixel

  4. 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

  5. Our Implementation • Original style border length • Store 7 bytes of secret image per complex bit plane

  6. Original zoomed in • Stego-image zoomed in

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