Does anyone know if any JPEG compression library that produces decent image quality has been ported to the iPhone? The built-in algorithm inside UIImageJPEGRepresentation produces huge files (compared to the quality), which makes uploading images from the phone over the network much slower than necessary. I can compress a JPG compressed inside the iPhone to one tenths of the file size using GD built into PHP, without significant loss of quality...
+1
A:
Well. The GD library uses the iJPEG library for compression. So if you want the same quality you should use the same library:
It's the most commonly used jpeg compression/decompression library btw.
Nils Pipenbrinck
2010-01-03 22:06:19
A:
I would like to know if there is a better library as well. I'm using .Net to compress jpeg images on the server and it does a much better job than the iPhone's UIImageJPEGRepresentation. I'd like to get them as small as possible on the iPhone before uploading as it a dreadfully slow process.
Brad
2010-01-31 05:21:00