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2002
Springer

Secret image sharing

8 years 7 months ago
Secret image sharing
Abstract. We present a novel hybrid method that includes a modulated scheme for reducing the distortion of the reconstructed image and a two-layered structure for grouping participants with different weights in a secret image sharing problem. Conventional secret image sharing methods suffer from truncation distortion, which is the difference between a pixel value and its truncated result. We first present a histogram modulation scheme to modulate the truncated pixels to prevent the truncation distortion. A two-layer secret image sharing scheme groups the participants in the first layer and weights them differently in the second layer. The proposed modulated secret image sharing method merges these two schemes. Experimental results reveal that the proposed method efficiently reduces the truncation distortion and groups the participants with different possess
Chih-Ching Thien, Ja-Chen Lin
Added 17 Dec 2010
Updated 17 Dec 2010
Type Journal
Year 2002
Where CG
Authors Chih-Ching Thien, Ja-Chen Lin
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