Created
May 7, 2011 14:33
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Get binary image data from remote image
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| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" | |
| "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> | |
| <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> | |
| <head> | |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> | |
| <title>Get binary image data from remote image</title> | |
| <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.0/jquery.min.js"></script> | |
| <script type="text/javascript"> | |
| $().ready(function(){ | |
| $('#form').submit(function(){ | |
| if ($('#image').val()) { | |
| // create a new image object to hold the remote image | |
| var img = new Image(); | |
| img.src = $('#image').val(); | |
| // force load image | |
| $(img).load(function(){ | |
| // create a canvas object | |
| var canvas = document.createElement("canvas"); | |
| canvas.width = img.width; | |
| canvas.height = img.height; | |
| // copy image contents to canvas | |
| var ctx = canvas.getContext("2d"); | |
| ctx.drawImage(img, 0, 0); | |
| // get data from canvas object | |
| var data = canvas.toDataURL("image/png"); | |
| // set results | |
| $('#result_data').text(data); | |
| $('#result_image').text('').append(canvas); | |
| }) | |
| } else { | |
| alert('Enter a valid image path'); | |
| } | |
| return false; | |
| }) | |
| }); | |
| </script> | |
| </head> | |
| <body> | |
| <h1>Get binary image data from remote image</h1> | |
| <form id="form"> | |
| <input type="text" id="image" size="100" style="padding:5px" value="http://dl.dropbox.com/u/36473/frogy.jpg"/> | |
| <input type="submit" value="GET!"/> | |
| </form> | |
| <h2>Data</h2> | |
| <textarea id="result_data" style="width:500px;height:200px"></textarea> | |
| <h2>Image</h2> | |
| <div id="result_image"></div> | |
| </body> | |
| </html> |
Yeah, I have the same problem. This only works with images on the same server.
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How are you resolve problem with security restrictions of HTML Canvas?
I tested your solution and it will not worked correctly.