WebP 概述
WebP 歷史
Learn more about WebP
WebP 的好處
WebP 的缺點
WebP 質量
WebP 損失和無損壓縮
FAQs about WebP
什麼是 WebP?
如何查看 WebP?
如何將 WebP 圖像轉換為其他格式的圖像?
我可以使用免費的 WebP 轉換器嗎?
Techincal FAQs about WebP
WebP 的最高質量價值是多少?
如何在網頁上上傳 WebP 圖像?
WebP 圖像的最大尺寸是多少?
將圖像轉換為 WebP 圖像時應該怎麼做?

WebP 的最高質量價值是多少?

What does the quality value mean when saving an image as a WebP file?

The quality value means the level of the image quality of a WebP image using lossy compression. Lowering the value reduces the file size but the image quality also gets poorer. Please visit the following link to learn about the relation between the quality value and the image quality.

What is the best and most ideal quality value for a WebP file?

It is hard to suggest a fixed quality value guaranteeing both the small file size and high image quality at the same time. You need to consider the content of an image and adjust the quality value on your own to find out the most ideal value, but a value between 50-80 is moderate in most cases.

If the quality value is 80 or more, the image quality hardly improves and only the file size becomes bigger. If the value is 50 or less, the file size hardly becomes smaller and only the image quality gets severely damaged.

If you use lossless compression when saving an image as a WebP file, the file has the same image quality as that of the original image and there is no need to set the quality value. Instead, the decrease in the file size is not very big.

You need to choose the best quality value depending on the content of the image; please visit the following link to learn about the know-how.