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Performance Comparison of Simple Orthogonal Transforms and Wavelet Transforms for Image Steganography

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Figure

Figure 2: 4x4 Walsh Transform MatrixFigure
Figure 6:  Seven images of size 64 X 64 and one image of size 128 X 128 embedded in a 256 X 256 Cover
Figure 7: Six secret images embedded into cover (Embedding capacity 56.25%)
Figure 8: Effect of brightness attack on stego generated using DCT
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