高动态范围成像造就的童话世界
Posted on March 1st, 2008 by sawyer
高动态范围成像技术（HDRI，high dynamic range imaging）可以造就一个童话般的世界，弥补无法记录真实世界瞬间美丽的遗憾。就像上图中这只大牛一样，好像生活在哈利波特的世界里。这种技术的主旨是要表现从日光直射到阴影笼罩的大范围的曝光度，这是普通的数码成像技术所达不到的。
据说photomatix这款软件可以让数码照片达到这种效果，它可以融合不同曝光度的照片，达到一个理想的曝光度。再看两张令人起鹅皮疙瘩的照片吧。更多请看flickr hdr小组。
20 Beautiful HDR Pictures
(via abduzeedo) “In computer graphics and photography, high dynamic range imaging (HDRI) is a set of techniques that allows a greater dynamic range of exposures (the range of values between light and dark areas) than normal digital imaging techniques. The intention of HDRI is to accurately represent the wide range of intensity levels found in real scenes ranging from direct sunlight to shadows.” - From Wikipedia.
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