학습 내용
1. Sampling Theorem
2. Image Scaling(by Subsampling)
3.
1. Sampling Theorem
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2. Image Scaling(by Subsampling)
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즉, Gaussian filter 쳐서 high frequency 죽여주면 Wmax가 낮아져서 w가 0.5여도 aliasing 발생 안할거다.
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결론
원본 이미지에 Gaussian Filter를 sigma 를 크게하여 적용시켜 high frequency를 없앤 상황에서
image sampling 해서 이미지 크기 줄이면 aliasing 발생 안한다.
출처
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