I have a HackHD still/video camera, but even though I have spent a little on extra lenses, they all need colour correction. My best lens has some Infra red component, so 'say' grass is almost white. I don't want to buy any more lenses at the moment, but would prefer to get a colour a correction program for adjustments. I have some programs, but they don't have separate colour curves, which I need. Not too expensive!

Any suggestions please.