Abstract

영상처리의 목적은 관측자를 위해서 영상의 시각적인 일면을 증진하는 것이다. 영상증진의 목적은 특정 응용분야에 따라서 달라지며, 또한 특정 목적을 위해서 사용되는 영상 증진 기법들은 다른 응용분야에는 적용되지 못하는 실정이다. 본 논문에서는 먼저 히스토그램 쉬링크 및 평활화, 보수적인 적응적 컨트라스트 증진 필터등에 대해서 살펴 보고져 한다. 그리고 적응적인 컨트라스트 증진 필터 기법을 의료영상에 맞게 구성하는 변수들의 적용값을 최적화했으며, 후 처리로 히스토그램 평활화 기법을 사용했다. 결과적으로 입력치인 의료영상들을 사용하여 적용한 결과 제안한 필터를 적용한 결과치 영상들의 에지가 강조됨을 보였고, 또한 후처리로 인해서 영상외형의 컨트라스트를 향상시켰다. The goal of image processing is to improve the perceptual aspect and visual appearance of images for human viewers. The objectives of image enhancement vary according to its specific application and an image enhancement techniques used for a specific objective may not be accepted in some other applications. In this paper we review some of conventional enhancement techniques, such as histogram shrink, equalization, and the conservative adaptive contrast enhancement filter. And also, The adaptive contrast enhancement filter has optimized the applied values of variables which is configured rightly the medical image field. In the postprocessing, we used the histogram equalization method. As a result, the inputs which used a medical images has enhanced the edges of a result images which has applied the proposed filter. And also, because of the postprocessing, the image outlines has been lightened.

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