您网站上图片较多的页面可能比实际需要多传输 40% 的字节。WebP 的现代编解码器专为在处理相同图片内容时超越 JPEG 而设计。
或者将图片拖放到这里。
支持JPG, JPEG, PNG, WEBP, SVG, GIF, HEIC, HEIF, BMP, TIFF, HDR, JP2, RAF, PSD, CR3, DNG, APNG, AVIF, AVI, ESP, EXR, J2C, J2K, JXL, PFM, PNM, PPM, PSB, SGI, MPEG, PDF
请上传相机拍摄的JPEG图片、图库照片或导出的设计JPEG图片。基线JPEG和渐进式JPEG均可接受,RGB或CMYK模式均可。
VP8 压缩采用 80 质量,专为照片内容优化。块预测和可变变换实现了 JPEG 的 8×8 DCT 无法实现的功能。
每个 WebP 文件通常比输入的 JPEG 文件小 25% 至 35%,且感知质量相同。文件名保留 .webp 扩展名。
WebP offers 25-35% better compression than JPEG while maintaining quality
Faster page loading and reduced bandwidth usage
Advanced VP8/VP9 compression with transparency support
superior compression efficiency with advanced WEBP encoding
Perfect for web optimization, faster loading, modern browsers
Handles lossy compression, small file size, universal support from JPEG files
两种摄影编解码器,相隔二十年
Joint Photographic Experts Group JFIF format
Note, JPEG is a lossy compression. In addition, you cannot create black and white images with JPEG nor can you save transparency. Requires jpegsrc.v8c.tar.gz. You can set quality scaling for luminance and chrominance separately (e.g. -quality 90,70). You can optionally define the DCT method, for example to specify the float method, use -define jpeg:dct-method=float. By default we compute optimal Huffman coding tables. Specify -define jpeg:optimize-coding=false to use the default Huffman tables. Two other options include -define jpeg:block-smoothing and -define jpeg:fancy-upsampling. Set the sampling factor with -define jpeg:sampling-factor. You can size the image with jpeg:size, for example -define jpeg:size=128x128. To restrict the maximum file size, use jpeg:extent, for example -define jpeg:extent=400KB. To define one or more custom quantization tables, use -define jpeg:q-table=filename. These values are multiplied by -quality argument divided by 100.0. To avoid reading a particular associated image profile, use -define profile:skip=name (e.g. profile:skip=ICC).
Weppy image format
Requires the WEBP delegate library. Specify the encoding options with the -defineoption See WebP Encoding Options for more details.
质量、色彩、EXIF 信息,以及 WebP 节省成本最重要的时候。