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有没有办法把客户端页面上没有url的图片上传到服务器

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Release： 2016-06-23 13:31:56
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我是要做一个图片裁剪的程序
我在网上看到的方法都是要将原图上传到服务器   
再用php自带的函数进行裁剪的   
我想问的是有没有办法   
不用上传原图
直接将在网页上预览的裁剪好的图片上传到服务器？
但是预览的图片是没有路径的 
有没有办法上传？
或者说有其他的方法可以达到不用上传原图的效果？
谢谢！！


回复讨论(解决方案)

虽然借助 Canvas.toDataURL 可以将裁剪后的区域发送出去
但 Canvas 也只能接受同源图片。
所以，你不想使用文件上传的话，是做不到的

还是按照通用的办法来吧，省事方便。

我决定用canvas来做

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有没有办法把客户端页面上没有url的图片上传到服务器
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