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本次比赛的主题是:HDR, 你的参赛作品必须是HDR合成的影像
本次比赛, 我将认真执行参赛规则, 请大家仔细阅读
参赛规则是:
1,参赛选手自己所拍,最长边不小于700像素, 不超过1000像素,这样便于观众观看
2,请勿添加或减少照片中的主要元素, 例如, 你用PHOTOSHOP加了个鸽子或者是云, 这样不行。 但是像HDR这样改变照片影调的作品可以参赛
3,报名贴于每月25日关闭, 然后就行10天投票, 分别决出第一二三名
奖励:第一名500分, 第二名200分, 第三名50分,每名参赛者都有50分奖励
请大家在本帖上传图片
教程在这里
名词解释:HDR
http://en.wikipedia.org/wiki/High_dynamic_range_imaging
High dynamic range imaging
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In image processing, computer graphics, and photography, high dynamic range imaging (HDRI or just HDR) is a set of techniques that allow a greater dynamic range of luminances between the lightest and darkest areas of an image than standard digital imaging techniques or photographic methods. This wider dynamic range allows HDR images to represent more accurately the wide range of intensity levels found in real scenes ranging from direct sunlight to faint starlight.[1]
The two main sources of HDR imagery are computer renderings and merging of multiple photographs, which in turn are known as low dynamic range (LDR)[2] or standard dynamic range (SDR)[3] images. Tone mapping techniques, which reduce overall contrast to facilitate display of HDR images on devices with lower dynamic range, can be applied to produce images with preserved or exaggerated local contrast for artistic effect.
[ 本帖最后由 dickson 于 2009-10-31 22:57 编辑 ] |
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