🎨 WebP 取色Pick WebP Colour

使用说明与常见问题How-to & FAQ

「WebP 取色」是什么？What is the Pick WebP Colour tool?

点击 WebP 预览读取像素颜色。本地处理。Click a WebP preview to read a pixel colour. Processed locally.

如何使用「WebP 取色」？How do I use the Pick WebP Colour tool?

在「WebP 取色」中，在上方填写或选择所需内容，结果会实时显示在下方；所有处理都在浏览器本地完成。In the Pick WebP Colour: Fill in or choose the options above and the result appears below instantly; everything runs locally in your browser.

读到的颜色准确吗？Are the colours exact?

WebP 文件用内置的 libwebp 解码器直接读取像素（选择文件后才加载，约 140 KB），不经过浏览器画布，所以和文件里的值完全一致，包括透明度（显示为 RGBA 和 #rrggbbaa）。PNG、JPG 等其他格式通过浏览器画布读取，个别浏览器的防指纹设置可能让某些值偏差 ±1。WebP files are read by a built-in libwebp decoder (loaded only after you choose a file, about 140 KB) instead of the browser canvas, so the values match the file exactly, including alpha (shown as RGBA and #rrggbbaa). Other formats such as PNG and JPG are read through the browser canvas, where some browsers' anti-fingerprinting settings can shift a value by ±1.

点哪里就是哪个像素吗？Is the pixel the one I click?

是的，点击位置按预览的实际显示大小（扣除边框）换算回原图坐标，读数后面会显示像素位置 x,y（从 0 开始）。预览缩小显示时，一个屏幕点可能覆盖几个原图像素，放大浏览器页面可以点得更准。Yes. The click is mapped back to image coordinates using the preview's displayed size (excluding the border), and the pixel position x,y (from 0) is shown after the reading. When the preview is scaled down one screen point can cover several pixels, so zoom the page in for precise picks.

图片会被上传到服务器吗？Are my images uploaded?

不会。「WebP 取色」使用浏览器 Canvas 在本地处理图片，处理后的文件直接从你的浏览器下载。No. The Pick WebP Colour processes images locally with the browser Canvas API and the result downloads straight from your browser.

「WebP 取色」免费吗？需要注册吗？Is the Pick WebP Colour free? Do I need an account?

「WebP 取色」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Pick WebP Colour is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.