Such situations make channel-level compression very valuable.

这种情况使得通道级压缩变得非常重要。

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At small block sizes, compression is much worse than file-level compression.

块大小比较小时，压缩比文件级别压缩差很多。

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As one would expect, once block size gets large, it makes no difference whether block-level compression is used.

正如预期的那样，一旦块大小变大，是否使用块级别压缩并没有区别。

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In terms of pure visual data (as calculated by Photoshop at the same level of jpg compression) the Google Map screen weighs in at precisely half the information of its prettier Apple counterpart.

FORBES: Hands On With New Google Maps For iOS: Easier On The Eyes And Faster For The Fingers

The latest deduplication advances automate the process of hunting down multiple files at a very granular level and apply specialized compression algorithms to what remains to shrink your data even further.

FORBES: Turn Big Data into Little Data With De-Duplication