A.降低影像清晰度 B.增加圖像對比度影像對比度 C.降低影像銳利度 D.增加圖像顆粒性 E.提高空間分辨率
A.0.2~1.0 B.0.2~1.5 C.0.25~2.0 D.0.3~1.8 E.0.5~2.0
A.-1000Hu B.-500Hu C.0Hu D.+500Hu E.+1000Hu