Google宣布WebP无损格式,支持透明
日期:2011-11-19 阅读:35 分类:业界新闻
"Google Chrome Blog宣布了新的WebP无损压缩格式以及对透明的支持。据测试,从PNG无损压缩到WebP后,文件大小缩小了45%。和通过pngcrush、pngout处理后的PNG相比,也缩小了28%。除了在无损压缩模式中支持透明外,透明背景的图片也可以保持透明进行有损压缩,这可以在保证一定的图像质量的前提下,极大地缩小文件大小。这里还有一些例子。"
![]() PNG file size: 118.5 KB |
![]() WebP-lossy (with alpha) file size: 23.4 KB | |
| "baby tux for my user page" 2 | ||
![]() PNG file size: 40.5 KB |
![]() WebP-lossy (with alpha) file size: 17.3 KB | |
| "PNG transparency demonstration" 3 | ||
![]() PNG file size: 215.8 KB |
![]() WebP-lossy (with alpha) file size: 83.2 KB | |
| "Gregor Mendel's 189th Birthday" 4 | ||
![]() PNG file size: 63.3 KB |
![]() WebP-lossy (with alpha) file size: 24.2 KB | |
| "Transparent compass card for overlays" 5 | ||
![]() PNG file size: 127.1 KB |
![]() WebP-lossy (with alpha) file size: 67.7 KB | |
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