Flash upload image resize client side

Question

Does anyone got an ideia on how to get client side image resize using flash.

Example: Client chooses an image with 1200x800 and before it uploads it flash will turn

Answer 1

Plupload is Opensource, has good documentation and supports multiple platforms, including Gears and HTML5!

http://www.plupload.com/index.php
http://www.plupload.com/example_all_runtimes.php

Ah, yes, it supports resizing images BEFORE uploading. The closest option to aurigma, but for free :)

Answer 2

I'm using flash uploader from http://www.resize-before-upload.com, works just fine :)

Answer 3

You need create a transformation matrix, then draw the original bitmap into a new one using it. Here's the idea in something i am just typing in and have not tested:

function resize(obm:BitmapData, scale:Number): BitmapData {
   var resizeMatrix:Matrix = new Matrix();
   resizeMatrix.scale(scale, scale);

   var rbm:BitmapData = new BitmapData(obm.width * scale, obm.height * scale);
   rbm.draw(obm, resizeMatrix);

   return rbm;
}

I make no claims about the quality of the result, however. I think I remember trying this in the past, not liking the result, and punting...

Answer 4

http://www.shift8creative.com/projects/agile-uploader/index.html

I just finished this little project - free to use. It won't really allow the end user to select the size, but you can pass a max width and max height constraint. Maybe you can make multiple pages/embeds with different options.

Answer 5

take a look at the script i wrote : image resizing at client side

Answer 6

The latest version of SwfUpload does client-side image resizing (using Flash). A pretty useful tool, although extras like displaying upload progress can get a little fiddly.

http://code.google.com/p/swfupload/