Title :
Partial-scrambling of images encoded using JPEG2000 without generating marker codes
Author :
Kiya, Hitoshi ; Imaizumi, Shoko ; Watanabe, Osamu
Author_Institution :
Dept. of Electr. Eng., Tokyo Metropolitan Univ., Japan
Abstract :
A method is described for efficient partial-scrambling of JPEG2000 images that avoids generating marker codes and improves the ability to control the degree, strength, and computational complexity of scrambling. This higher control ability is due to the use of a parameter. This parameter also controls the scrambling time, an important consideration for real-time processing.
Keywords :
computational complexity; cryptography; image coding; real-time systems; JPEG2000 images; computational complexity; digital images; image partial-scrambling; real-time processing; scrambling time; Cryptography; Degradation; Discrete wavelet transforms; Encoding; Image generation; Image storage; Privacy; Protection; Size control; Streaming media;
Conference_Titel :
Image Processing, 2003. ICIP 2003. Proceedings. 2003 International Conference on
Print_ISBN :
0-7803-7750-8
DOI :
10.1109/ICIP.2003.1247217
