0测试新的图像压缩工具

我一直在使用EWWW图像优化器来压缩所有的我 JPEG and PNG 本网站上的图像数年. EWWW利用使用OptiPNG和PNGOUT的和,而这些功能强大的工具,现在有替代品在那里,我想测试和比较.


I am aware of new­er image formats that may offer smal­ler sizes but until they are broadly sup­por­ted we will have to con­tin­ue to work with PNG and JPEG.

I have already seen some com­par­is­ons show­ing some impress­ive per­form­ance by some oth­er formats but I wanted to test this for myself with my real­world images. Based on the claims presen­ted I decided to start with Pingo and see how much it reduced the size of my total image lib­rary.

有 3549 其是PNG图像的混合图像, JPEG文件, and Webp files and range in size from over 1000×1000 pixels to small thumb­nails of 60×60 pixels.

无损

尺寸
Ori­gin­al116MB (121,848,736 字节)
Pingo的后113MB (118,310,160 字节)

3505 images were pro­cessed in 434 seconds which is impress­ively quick com­pared to the pre­vi­ous tools I’ve used. 然而, 只有3455kb (3.37MB) 保存这是一个 2.5% sav­ing.

Des­pite the lack of reduc­tion, I will still be look­ing to migrate to pingo as it is vastly faster than the tools used by EWWW and achieves effect­ively the same res­ult

有损

尺寸
Ori­gin­al116MB (121,848,736 字节)
Pingo的后94MB (98,133,668 字节)

Lossy com­pres­sion was much more impress­ive in size reduc­tion with a 22.6Mb (19%) reduc­tion but this is to be expec­ted as my pre­vi­ous tools were not using lossy com­pres­sion. I had decided in advance that a sig­ni­fic­ant reduc­tion would be needed for me to con­sider using lossy com­pres­sion. This reduc­tion is right on the bor­der­line. The ulti­mate decision comes down to how much the smal­ler dimen­sion (更多的时候担任) images saved — the major­ity of the sav­ings were with ori­gin­al images not with the smal­ler images so I’m not per­suaded that the reduc­tion is worth­while at this point, espe­cially as I already serve webp images to over 50% of vis­it­ors and these gained the least

The next step is to fig­ure out how to auto­mate the pro­cess with pingo which isn’t sup­por­ted by EWWW.

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