免费图片放大工具
用浏览器 画布 高质量平滑放大本地图片,适合评审和排版检查。
先在本地放大图片,再做排版检查和快速评审。
关于这个工具:免费图片放大工具
Enlarge local images with browser canvas smoothing before review, layout checks, or handoff. 无需上传——全部处理都在你的浏览器本地完成,兼顾隐私与速度。
常见用法
- 2x 最稳,画质和浏览器内存压力都更可控。
- 源图本来很大时,先降尺寸或选更小倍数。
老实说说「放大图片」这件事
放大并不会恢复细节,它只是对「缺掉的像素原本可能是什么」做一个自信的猜测。用在背景或柔和纹理上通常够,用在人脸或细小文字上基本不够。
放大能帮上忙和帮不上忙的地方
- 1
用你能拿到的最好的源图
干净、锐利、噪点少的原图放大效果好得多。噪点会被一起放大。
- 2
在 100% 尺寸下判断
把放大结果和原图在真实尺寸下比对,而不是缩小看。失真本身就是要比的东西。
- 3
倍数别开太大
两倍通常还挺可信;四倍常常会露出像涂抹一样的伪造纹理。
图片放大常见问题
- 放大能增加真实细节吗?
- 不能。它要么插值、要么合成出看起来合理的像素。信息本来就不在文件里。
- 什么时候适合放大?
- 背景、纹理、柔和渐变。对人脸、logo 和小字要保持怀疑。
- 要消耗积分吗?
- 本站的本地放大工具在你的浏览器里运行,完全免费,也不消耗积分。
拖入文件或点击浏览
90%
等待文件中
先添加一个文件再开始。
原始大小
-
输出大小
-
已保存
-
仅在浏览器本地处理,不上传。
输出大小
等待文件中
小提示
- 2x 最稳,画质和浏览器内存压力都更可控。
- 源图本来很大时,先降尺寸或选更小倍数。
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