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영상의 공간적 축소방법을 이용한 콘트라스트 향상 알고리즘Contrast Enhancement Algorithm Using Temporal Decimation Method

Other Titles
Contrast Enhancement Algorithm Using Temporal Decimation Method
Authors
최인석최명렬운종호조화현박진성
Issue Date
Sep-2005
Publisher
한국멀티미디어학회
Keywords
콘트라스트; 누적분포함수; 영상 축소; Contrast Enhancement; CDF; Decimation
Citation
멀티미디어학회논문지, v.8, no.9, pp 1187 - 1194
Pages
8
Indexed
KCI
Journal Title
멀티미디어학회논문지
Volume
8
Number
9
Start Page
1187
End Page
1194
URI
https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/46257
ISSN
1229-7771
Abstract
본 논문에서는 영상의 공간적 축소방법을 이용한 새로운 영상의 콘트라스트 향상기법을 제안하였다. 제안된 알고리즘은 축소된 영상을 생성하여 콘트라스트 향상을 위한 누적분포함수(CDF: Cumulative Distribution Function)의 계산량을 감소시키고 하드웨어의 복잡성을 줄였다. 제안된 방식으로 처리한 영상은 향상된 콘트라스트 결과를 얻을 수 있었다. 제안된 방식에 의한 처리 결과와 원 영상의 화질 평가를 위하여 시각적 검증과 히스토그램 표준편차를 도입하였다.
In this paper, new contrast enhancement algorithms that use temporal decimation method and approximated CDF(Cumulative Distribution Function) are proposed. They reduce the amount of computation which is required for image contrast enhancement. Simulation results show that the algorithms can achieve significant reduction in the computational cost and the hardware complexity. Visual test and standard deviation of their histogram have been introduced to evaluate the resultant output images of the proposed method and the original ones.
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CHOI, MYUNG RYUL
ERICA 공학대학 (SCHOOL OF ELECTRICAL ENGINEERING)
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