지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.12
- 수록면
- 548 - 554 (7page)
이용수
초록· 키워드
오류제보하기
A binary encoding method for grayscale images is proposed to address their unsatisfactory decryption results from joint transform correlator (JTC) encryption systems. The method converts the encryption and decryption of grayscale images into that of binary images, and effectively improves decrypted-image quality. In the simulation, we replaced unencoded grayscale images with their binary encoded counterparts in the JTC encryption and decryption processes, then adopted a median filter to suppress saturation noise while keeping other settings unchanged. Accordingly, decrypted-image quality was clearly enhanced as the correlation coefficient (CC) between a decrypted image and its original rose from 0.8237 to 0.9473 initially, and then further to 0.9937, following the above two steps respectively. Finally, optical experimental results confirmed that the proposed encryption system works correctly.
목차
I. INTRODUCTION
II. THE BINARY CODING APPROACH FOR GRAY SCALE IMAGES
III. OUTLINE AND PRINCIPLES OF A JTCENCRYPTION AND DECRYPTION SYSTEMBASED ON A BINARY-ENCODED GRAY-SCALE IMAGE
IV. ENCRYPTION AND DECRYPTION SIMULATION AND ANALYSIS OF THE RESULTS
V. AN OPTICAL EXPERIMENT TO VALIDATE THE SCHEME
VI. CONCLUSION
REFERENCES
참고문헌 (19)
참고문헌 신청
P. Réfrégier / 1995 / Optical image encryption based on input plane and Fourier plane random encoding / Opt. Lett 20:767~769
J. Lang / 2012 / Image encryption based on the reality-preserving multiple-parameter fractional Fourier transform and chaos permutation / Opt. Lasers Eng 50:929~937
B. Javidi / 2000 / Securing information by use of digital holography / Opt. Lett 25:28~30
T. Nomura / 2000 / Optical encryption using a joint transform correlator architecture / Opt. Eng 39:2031~2035
E. Rueda / 2009 / Optical encryption with a reference wave in a joint transform correlator architecture / Opt. Commun 282:3243~3249
J. Lang / 2012 / Image encryption based on the reality-preserving multiple-parameter fractional Fourier transform and chaos permutation / Opt. Lasers Eng 50:929~937
B. Javidi / 2000 / Securing information by use of digital holography / Opt. Lett 25:28~30
T. Nomura / 2000 / Optical encryption using a joint transform correlator architecture / Opt. Eng 39:2031~2035
E. Rueda / 2009 / Optical encryption with a reference wave in a joint transform correlator architecture / Opt. Commun 282:3243~3249
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