Image conversion to YUV422

[jabroni]

I have been trying to figure this out for a while to no avail, I was wondering if someone could help or point me in he right direction.

I have a need to convert an UIImage or a stored JPG to YUV422 so I can then apply some image enhancements, and with the result convert it back to either a JPG or UIImage.

I'm a bit stuck at the moment, I this point I am just trying to get it to YUV422.

Any help would be greatly appreciated.

Thanks in advance.