jquery - 如何改变 Pixastic jquery 的对比度？

Question

我尝试使用 Pixastic 更改图片的对比度，但它给我一个错误告诉我

Error: uncaught exception: [Exception... "Security error" code:"1000" nsresult: "0x805303e8 (NS_ERROR_DOM_SECURITY_ERR)" location:"file:///C:/Users/maydin/Desktop/pixastic/pixastic.custom.js Line:49"]

function lowerBrightness(){
        $('#tok').pixastic("brightness", {brightness:50});  
    }   

有人以前用过这个亮度功能吗？我该如何解决这个问题？

$('#tok').pixastic("blurfast", {amount:0.8});     <- this one works fine  
$('#tok').pixastic("rotate", {angle:+90});        <- this one works fine as well 

我在文档中找不到任何信息
http://www.pixastic.com/lib/docs/actions/brightness/

Answer 1

You should also be aware that, due to security restrictions in the canvas element, Pixastic will only work with images that reside on the same host as the page you're using it on.

来自 Pixastic Documentation

更多信息:

Pixastic doesn't work properly for me, why?