permutation operator 中文意思是什麼
permutation operator
解釋
置換算符- permutation : （數學中）排列變化，徹底改變
- operator : n 1 操作者，機務員；司機，駕駛員；【軍事】電話兵；【電話】接線員，話務員（＝telephone operator）...
-
With relations of operators and matric, we will show that the inverse a - 1 of positive operator a is still a positive operator if and only if that a is a generalized permutation
利用運算元和矩陣的關系，得到正運算元t的逆是正運算元的充要條件是t是廣義置換運算元。 -
To solve the problem of watermark encryption, a novel permutation operator is proposed, based on which the permutation scheme and the substitution scheme for watermark encryption are designed ; encryption algorithms in spatial domain and transform domain are proposed. the ciphered image can be jpeg compressed before it is transmitted, and low - distortion plain image can be obtained after decrypting the compressed encryption image
為解決水印信息加密問題，我們在第三章提出混沌有序化運算元方法，設計了水印信息加密的置亂模塊和替代模塊;還給出了空間域和變換域數字圖像加密演算法，密文圖像可以經過有損壓縮再傳輸，經過解密得到低失真的明文圖像。
分享友人