如何显示模糊图像的一部分，其中鼠标悬停？ [英] How to reveal part of blurred image where mouse is hovered?
问题描述
如何显示鼠标悬停的模糊图像的一部分（小部分）？目前它模糊整个图像，但我想要模糊图像中鼠标指向的部分被显示。
How to reveal part(small portion) of blurred image where mouse is hovered??Currently it blurs whole image but I want the part of the blurred image where the mouse is pointing to be revealed.
HTML
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Anoop</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="blur pic">
<img src="adv_logo.png" alt="plane">
</div>
</body>
</html>
CSS
.blur img {
-webkit-transition: all 1s ease;
-moz-transition: all 1s ease;
-o-transition: all 1s ease;
-ms-transition: all 1s ease;
transition: all 1s ease;
}
.blur img:hover {
-webkit-filter: blur(1px);
}
推荐答案
替代解决方案。它没有伟大的浏览器支持，因为它是建立在SVG图像，掩码和过滤器。我已经测试，它的工作原理在Chrome 33，Safari 6.1.1和Firefox 25.0.1。
I just want to post an alternative solution. It doesn't have great browser support as it is built on SVG images, masks and filters. I have tested and it works in Chrome 33, Safari 6.1.1 and Firefox 25.0.1.
让我知道您的想法： jsFiddle
Let me know what you think: jsFiddle
使用反转蒙版的新版本模糊图片 jsFiddle
New version with inverted mask for blurred image jsFiddle
HTML + SVG
HTML + SVG
<div class="pic">
<svg class="blur" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="100%">
<image filter="url(#filter2)" xlink:href="http://i.imgur.com/IGKVr8r.png" width="100%" height="100%"></image>
<filter id="filter2">
<feGaussianBlur stdDeviation="5" />
</filter>
<mask id="mask1">
<circle cx="-50%" cy="-50%" r="30" fill="white" filter="url(#filter2)" />
</mask>
<image xlink:href="http://i.imgur.com/IGKVr8r.png" width="100%" height="100%" mask="url(#mask1)"></image>
</svg>
</div>
CSS
body {
margin: 0;
}
.pic {
text-align: center;
position: relative;
height: 250px;
}
.blur {
height: 100%;
}
.overlay {
position: absolute;
top: 0px;
left: 0px;
height: 100%;
}
JavaScript
JavaScript
$('.pic').mousemove(function (event) {
event.preventDefault();
var upX = event.clientX;
var upY = event.clientY;
var mask = $('#mask1 circle')[0];
mask.setAttribute("cy", (upY - 5) + 'px');
mask.setAttribute("cx", upX + 'px');
});
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