Two-dimensional EMD Algorithm Based on Matrix Operation
Pan Fenga · Jisuanji gongcheng · 2011
In order to make good use of human vision redundance and obtain a higher embedding rate,on the basis of Exploiting Modification Direction(EMD),a new two-demensional steganograph scheme with high embedding rate in space domain is proposed.Dividing the cover image into m×n matrix blocks,the coded secret message is embedded in each matrix block by using EMD algorithm independently in rows and lines,and the optimal m of matrix rows equaling 1 is presented.The analysis of performance shows that the proposed method has better performance on the embedding rate than the EMD algorithm does.