Re: Image compression.

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On 28/09/11 17:44, German Castellar wrote:
[...]
> I have a client requirement for uploading images of aprox 5 Mb. Due to
> a bandwidth constraint i need to compress this images and upload them
> using GWT.

You want to use the HTML5 File API to read the file client-side and then
mangle them how you wish:

http://www.html5rocks.com/en/tutorials/file/dndfiles/
http://code.google.com/p/lib-gwt-file/

Actually decompressing the image into memory and recompressing it into a
different format will be... exciting, unfortunately. You'll have to port
some existing code. I do have a library that provides InputStream,
OutputStream etc that might help but it doesn't understand the HTML5
File API. (Might be useful for me to add.)

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