Paper Info
Title
An Encryption Algorithm for Region of Interest in Medical DICOM Based on One-Dimensional e(lambda)-cos-cot Map
Abstract
Today, with the rapid development of the Internet, improving image security becomes more and more important. To improve image encryption efficiency, a novel region of interest (ROI) encryption algorithm based on a chaotic system was proposed. First, a new 1D e(lambda)-cos-cot (1D-ECC) with better chaotic performance than the traditional chaotic system is proposed. Second, the chaotic system is used to generate a plaintext-relate keystream based on the label information of a medical image DICOM (Digital Imaging and Communications in Medicine) file, the medical image is segmented using an adaptive threshold, and the segmented region of interest is encrypted. The encryption process is divided into two stages: scrambling and diffusion. In the scrambling stage, helical scanning and index scrambling are combined to scramble. In the diffusion stage, two-dimensional bi-directional diffusion is adopted, that is, the image is bi-directionally diffused row by column to make image security better. The algorithm offers good encryption speed and security performance, according to simulation results and security analysis.
Year
DOI
Venue
2022
10.3390/e24070901
ENTROPY
Keywords
DocType
Volume
1D e(lambda)-cos-cot map, chaotic performance, medical image encryption, region of interest, selective image encryption
Journal
24
Issue
ISSN
Citations 
7
1099-4300
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Xin Meng100.34
Jinqing Li235.81
Xiaoqiang Di304.39
Yaohui Sheng400.68
Donghua Jiang500.34