Planar random polyline mapping in unit area and chaos analysis of its cross-iteration
Wei Xiao-penga · Jisuanji yingyong yanjiu · 2011
In order to generate better chaotic sequences,which was used in image encryption,this paper researched the chaotic characters of polyline in the unit area,found that the continuous polyline in the plane could be put into a unit area through the translation,scaling and other operations.The continuous polylines' full mappings in the unit area were Li-Yorke chaotic,when certain conditions were met,these mappings were also Devaney chaotic.The experimental results and theoretical analysis show that those chaotic sequences have better distribution character and good effects in image encryption.Thus chaotic sequence generated by these mappings can be used in image encryption and other fields.