照片图像的色调或明暗的处理呈反转效果的图像，称为反转像。在摄影领域之所以叫反转像是因为在冲洗之初显示为负像，经中途曝光后再次显影时转为正像。
常用的后处理技术包括最大密度 造影（Maximumintensityprojection，MIP）及反转像（inverse-MIP），并对重点部位进 行多平面重建（Multiplanarreconstruction，Mr＇R）。
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如果好朋友像雨点一样由天而降，我会反转我的雨伞，接住我所需要的一切。
If good friends fell from the sky like raindrops, I'd turn my umbrella upside down and have all that I need.
“每天晚上蜜蜂熟睡后，我都会称量反转过的蜂箱”，她说，但蜜蜂们继续采回花蜜，像往常一样多。
"Every night after the bees were asleep, I weighed the flipped hives," she said, but the bees continued to haul in as much nectar as ever.
第二，目前一些可观察到的在表现上毫无疑问的差异，看上去像早期差异的反转。
Secondly, some of the undoubted differences in performance observable at present look like the inverse of earlier differences.
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