我顺便压缩了原图,不过视觉效果和原图一样,显著降低了文件大小。 I compressed the original image by the way, the visual effect is the same as the original but the file size issignificantly reduced.
It's compressed yes but the visual effect is clearly not the same. There are plenty of artifacts from your compression. You should compress from PNG to JPG around 80-90% quality, it probably is the best compression method with least amount of artifacts IMO.