Gaussian Blur 필터가 적용된 디지털 사진의 위변조 분석 연구
A Study on Detecting Digital Photography Forgeries used Gaussian Blur Filter
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초록
As more people strongly believe in photography as a truth, more people try to distort the truth. One of the Forged Photography can make confusing for people who acceptable truth and it can appear the constitute a public problem. Specially, the machinery of law and state organization confront that digital Photography system adjusts practical affairs at once. Therefore, we need a standard to do right according to its purposes, but in reality, we do not have an objective standard to judge forgery photographs. This study arranges the objective analysis method. As results, when digital Photography goes to forgery using blur filter, the main problem is the control of blur factor, and we focus on the blur filtered image based on interpolation.
Abstract
As more people strongly believe in photography as a truth, more people try to distort the truth. One of the Forged Photography can make confusing for people who acceptable truth and it can appear the constitute a public problem. Specially, the machinery of law and state organization confront that digital Photography system adjusts practical affairs at once. Therefore, we need a standard to do right according to its purposes, but in reality, we do not have an objective standard to judge forgery photographs. This study arranges the objective analysis method. As results, when digital Photography goes to forgery using blur filter, the main problem is the control of blur factor, and we focus on the blur filtered image based on interpolation.
참고문헌 (6)
- 이정범, "보간을 근거로 한 디지털 이미지의 위, 변조 분석 연구", AURA, 16(16), pp.20~29 (2007), 한국사진학회
- 이정범, "MATLAB을 이용한 디지털 이미지의 위, 변조 분석 연구", 박사, pp.2006
- 하영호, "디지털 영상처리" (2004), 도서출판 그린
- Friston, K. J., "Bayesian inference and posterior probability maps", IEEE Neural Information Processing, 1, pp.413~417 (2002)
- Popescu, A. C., "Exposing Digital Forgeries by Detecting Traces of Re-sampling", IEEE Transactions on Signal Processing, 53(2), pp.758~767 (2005)
- Marchand, P., "Graphics and GUIs with MATLAB", pp.112~141 (2005), A CRC Press Company