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Google Page Insights：有人用Google所建议的无损压缩来优化图像吗？

[英]Google Page Insights: did anybody ever optimize images with lossless compression by the amount Google suggests?

原文 2014-05-25 22:22:47 3 1 image/ optimization/ wordpress-plugin/ image-size

I ran my page through Google's Page Insights to receive the suggestion to optimize my page's images. 我通过Google的Page Insights运行页面，以接收优化页面图像的建议。 There are many JPEG photos on it. 上面有许多JPEG照片。 Google's Page Insights suggest that for some of them there could be savings of up to 50% (for some even over 60%) by using lossless compression. Google的Page Insights建议，通过使用无损压缩，对于其中一些而言，可节省多达50％（对于某些情况甚至超过60％）。 I am not sure which technologies Google bases these calculation on. 我不确定Google会基于哪些技术进行这些计算。 Had anybody luck matching these numbers with real (lossless) compression results? 有人幸运地将这些数字与真实（无损）压缩结果相匹配吗？

I already did some research, tried out "WP Smush.it" and "wwww image optimizer" plugins, both with very similar results being nowhere near for Google suggest would be possible. 我已经进行了一些研究，尝试了“ WP Smush.it”和“ wwww图像优化器”插件，两者的结果非常相似，谷歌认为这是不可能的。 In fact, for jpeg images, where Google Page Insight mentioned some 53% filesize savings being possible with lossless compression, these tools just managed to save about 3%. 实际上，对于jpeg图像，Google Page Insight提到使用无损压缩可以节省约53％的文件大小，而这些工具仅节省了约3％。 I tried this with several of the images, so I would be very interested, if somebody else experienced similar problems? 我尝试了其中的一些图像，所以如果有人遇到类似的问题，我将非常感兴趣。 How does Google Page Insights do these kind of calculations? Google Page Insights如何进行此类计算？ Is it just educated guessing or are they using different compression algorithms that us humans are not allowed to know? 仅仅是出于有根据的猜测，还是他们使用了我们人类不知道的不同压缩算法？ ;) ;）

1 个解决方案

Hi i got the same problem. 嗨，我遇到了同样的问题。 I managed to reduce the difference from what Google gets to 3% with a software named "RIOT" for windows. 我设法通过用于Windows的名为“ RIOT”的软件将与Google的差异减少到3％。 Still looking for one that would reproduce the same results Google insight gets. 仍在寻找一种可以重现Google洞察力的结果。 A solution that doesn't involve linux or being a programmer that is. 不涉及linux或不参与编程的解决方案。