Loupe.js and Loupe.png allows you to add a loupe (magnifier) to images on your webpages. It uses unobtrusive javascript to keep your code clean.

It works in all the major browsers - Mozilla Firefox 1.5+, Opera 9+, IE 6+ and Safari. On older browsers, it'll degrade and your visitors won't notice a thing.

Setting Up

Download "loupe.js" and include it into your webpages HEAD section.


// only if the image "loupe.png" is not in the current path

<script type="text/javascript">var loupePath="imagepath/";</script>

// else only this lines...

<script type="text/javascript" src="loupe.js"></script>

<!--[if gte IE 6]>

<script type="text/javascript">var loupePath="vml/";</script>

<script type="text/javascript" src="vml/loupe.js"></script>

<![endif]-->

Using It

To add a loupe just set the event onload="initLoupe(this.id);" to an div surrounded image.


<div>

<img id="..." onLoad="initLoupe(this.id);" src="..." width="356" height="205" alt="...">

</div>

Usage

Function initLoupe(arg1[,arg2])
setting the image through image id:
Required Parameter arg1 e.g. this.id or "imgname" - default=null
setting the startup visibility of the loupe:
Optional Parameter arg2 e.g. true - default=false

Demonstration

Shows what "loupe.js" does.

Zoom Effect (Caribbean) Frame Effect (Mona Lisa) Xray Effect (Homer)

Why use Javascript Image Loupe?

Fast and easy to implement. Just add onload="initLoupe(this.id);" to the image.
Makes large images completely visibly through small page-areas.
Works and looks really well. Doesn't require additional resources.
It's possible to change the design of the loupe by use of a image editing program.
Free of charge use on non-commercial and private web sites.

In older browsers, the script degrades and your visitors won't notice a thing.

Restrictions

It's not advisable to use the script multiple times on the same page.

History

Version 1.2

Added support for Internet Explorer 6/7

Version 1.1

Works even with disabled cache

Version 1.0

Initial Release

License

Loupe.js is distributed under this LICENSE. License permits free of charge use on non-commercial and private web sites only.
There is also a Commercial Software License available.

Images used are copyrighted and are used for demonstration only.

cvi.netzgesta.de also visit CVI-lab, S5 Reloaded and AJAX-FilmDB

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loupe.js 图片放大镜插件

loupe.js 图片放大镜插件，来自老外的一款封装函数，完成的功能可以看看上边的截图，类似一个放大镜的效果，实际上这不是放大，只不过是对另一张像素极高的图片特殊的显示方式不同而已，两者结合看似一个放大镜一样。