如果一个像素都能向你讲述一个故事，试想下百万个像素可以给你什么。

If one pixel can tell you a story, imagine what millions can.

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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。

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.

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现在每一部相机都有两百万以上的像素， 相机制造商又想出了另一个没有意义的数字来从不明事理的无辜者中骗取钱财， 这个数字叫：ISO。

Now that every camera has double-digit megapixels, camera makers inventedanother meaningless number they can use to extract more cash from the innocent,called ISO.

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