高像素照片和视频编辑是Mac的秘密武器。

High-definition photo and video editing are the Mac’s secret weapon.

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Gerald Donovan拍摄的这幅全景照拥有450亿像素，几乎是之前最大记录的保持者，260亿像素照片的两倍大。

Coming in at 45 Gigapixels, this panoramic shot by Gerald Donovan almost doubles the previous record holder at 26 Gigapixels.

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他们还试图检测噪声——图像中呈现粒状效果的过度曝光像素——是产生于照片被摄制的时刻还是后来才被加上的。

They also try to detect if noise-the overexposed pixels within the image that create a grainy effect-was present at the time the photograph was taken or has been added later.

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You've got a picture of somebody's face, it's a million pixels. Each pixel has a range of values from zero to 256. I want to hash a face with some function into an integer.

你有一个人的脸部照片，它有一百万个像素,每个像素的值范围在0到256之间,我想用某个函数将一张脸部照片。

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