🩹 图片水印去除Watermark Remover

使用说明与常见问题How-to & FAQ

「图片水印去除」是什么？What is the Watermark Remover tool?

用画笔或矩形框涂抹图片上的小水印、日期戳、Logo 或杂物，工具会根据周围像素自动填补（本地扩散修复算法），可多次处理、撤销，最后下载；图片全程不上传。Brush or box over a small watermark, date stamp, logo or blemish and the tool fills it in from the surrounding pixels using local diffusion inpainting. Repeat, undo and download — the image never leaves your browser.

如何使用「图片水印去除」？How do I use the Watermark Remover tool?

在「图片水印去除」中，按需设置「画笔大小」等选项，然后点击「🖌 画笔」、「▭ 矩形」、「去除选中区域」、「清除涂抹」按钮即可。支持拖放文件。In the Watermark Remover: Set "Brush size", then click "🖌 Brush", "▭ Box", "Remove selected area", "Clear selection". Drag-and-drop files is supported.

它是怎么去除水印的？How does it remove the watermark?

你涂抹的区域会被当作“缺失”，工具从选区边缘向内逐层用周围像素填充，再做平滑（调和）插值，使颜色与周边自然衔接。这是经典的本地修复算法，不是 AI 生成。The painted area is treated as missing; it is filled layer by layer from the edges inward using surrounding pixels, then smoothed with harmonic interpolation so colors blend with the surroundings. It is a classic local inpainting algorithm, not generative AI.

效果怎么样？有什么局限？How good are the results? What are the limits?

对纯色、渐变、天空、墙面等简单背景上的小水印、日期戳、文字效果很好；在复杂纹理（头发、草地、文字密集区）或大面积区域上会出现模糊、涂抹感，无法还原被遮住的真实细节。建议选区尽量贴合水印，并分多次小块处理。It works well for small watermarks, date stamps and text on plain colors, gradients, sky or walls. On complex textures (hair, grass, dense text) or large areas it will look blurred or smeared and cannot recover the real detail underneath. Keep the selection tight and work in small pieces.

可以用来去除别人图片的版权水印吗？Can I remove copyright watermarks from other people's images?

请只处理你拥有版权或已获授权的图片（例如去掉自己照片上的日期戳、旧 Logo）。擅自去除他人作品的版权标识可能违反著作权法。Only process images you own or are licensed to edit (for example removing a date stamp or old logo from your own photos). Removing copyright marks from others' work may violate copyright law.

下载的图片画质会下降吗？Will the downloaded image lose quality?

未涂抹的区域保持原样（半透明像素经过浏览器画布时颜色值可能略有变化（越接近透明越明显），透明度不变）。下载时保持原格式：PNG 无损，JPG/WebP 以 95% 质量重新编码；还没去除任何区域时直接下载原文件。EXIF 信息不会保留。动图 WebP 只处理第一帧，结果为静态图片。Untouched areas are unchanged (semi-transparent pixels can shift in color through the browser canvas, more so the more transparent they are; alpha is unchanged). The original format is kept: PNG is lossless, JPG/WebP are re-encoded at 95% quality; before anything is removed the original file is downloaded as is. EXIF data is not kept. Animated WebP: only the first frame is edited and the result is a still image.

图片会上传吗？Is my image uploaded?

不会，所有计算都在你的浏览器里完成。No, all computation happens in your browser.

「图片水印去除」免费吗？需要注册吗？Is the Watermark Remover free? Do I need an account?

「图片水印去除」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 Watermark Remover is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.