Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/43813
標題: A BST-based robust image hiding method
作者: Ho, Y.A.
蔡垂雄
Chan, Y.K.
Tsai, C.S.
Chu, Y.P.
詹永寬
關鍵字: image hiding
data hiding
discrete wavelet transform
LSB
lsb substitution
期刊/報告no:: Imaging Science Journal, Volume 56, Issue 6, Page(s) 351-359.
摘要: This paper proposes an image hiding method which first compresses a secret image by base switching transformation (BST) and then ranks the compression data according to their significance. Meanwhile, the cover image is transformed into a frequency domain image by discrete wavelet transformation. After that, the dominant compression data are hidden in the lower frequency sub-bands and the trivial compression data in the higher frequency sub-bands of the frequency domain image. When the dominant compression data are damaged, the hamming code method is used to correct the damaged data. If the trivial compression data are changed, only the secret image data relating to the damaged data are affected. This proposed method also can yield a high hiding capacity of 2.25 bits/pixels.
URI: http://hdl.handle.net/11455/43813
ISSN: 1368-2199
文章連結: http://dx.doi.org/10.1179/174313108x344489
Appears in Collections:資訊管理學系

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