WebP is a method of lossy compression that can be used on photographic images. The degree of compression is adjustable so a user cans choose the trade-offs between the file size and image quality.
A WebP file consists of VP8 image data, and a very lightweight containers based on RIFF. Webmasters, web developers and browser developers WebP cans use the format to create smaller, better-looking images cans that help make the web faster. While this container format contributes a minimal overhead of only 20 bytes per image, it is extensible to allow authors to save the meta-data they would like to store.
Images on the web consist primarily of lossy formats such as JPEG, and to a lesser extent lossless formats such as PNG and GIF. This kind of image format will contribute about 65% of bites from all content accessed through website.They can significantly slow down a user's web experience, especially on the bandwidth-constrained networks such as a mobile network
For these reason, WebP released. The new image format that promised to significantly reduce the byte size of photos on the web, allowing web sites to load faster than before. With this WebP compression format, resulted in an average 39% reduction in file size.
"While WebP images can not be viewed until browsers support the format, we are developing a patch for WebKit to provide native support for WebP in an upcoming release of Google Chrome. We plan to add support for a transparency layer, also known as alpha channel in a future update, "Google Product Manager, Richard Rabbat said.
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