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A Sharing-Based Fragile Watermarking Method for Authentication and Self-Recovery of Image Tampering

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Academic year: 2021

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Figure 1: Two flowcharts show the proposed method: (a) the encoding (watermarking) procedure, (b) the decoding (verification and recovery) procedure.
Figure 2: An example of region division and number assignment.
Figure 3: An example of embedding a 27-bit watermark b in a 3 × 3 block: (a) the arrangement of the 9 pixels, (b) the arrangement for the 3-LSBs of the 9 pixels, (c) the result of embedding.
Figure 4: Four original images: (a) Lena , (b) Jet, (c) Baboon, (d) Barbara.
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