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- W1980857380 abstract "In this paper, we propose a simple reversible data hiding method in the spatial domain for block truncation coding (BTC) compressed grayscale images . The BTC method compresses a block of a grayscale image to a bitmap and a pair of quantization numbers. The proposed method first embeds secret bits into a block b y chang ing the order of those two quantization numbers. The compression rate is not enlarged by this embedding scheme. To further improve the hiding capacity, the proposed method embeds the secret bits into the bitmap of the block by exploiting the correlation characteristic of neighboring block s ’ bitmap in natural images. The experimental results show that the proposed method achieves very good hiding capacity at low compression rate." @default.
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- W1980857380 date "2011-03-18" @default.
- W1980857380 modified "2023-09-23" @default.
- W1980857380 title "A Simple Image Encoding Method with Data Lossless Information Hiding" @default.
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- W1980857380 doi "https://doi.org/10.4304/jnw.6.3.400-407" @default.
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