removing the effects of a yellow filter from a color negative scan

[DolphinDan]

Hi all,

So I was out shooting the sunset a couple of months ago with B&W and color film. I forgot to remove the yellow filter from my lens when switching film holders from the B&W to the color film. When I got the color negative film (Kodak PORTRA 400) drum scanned (the sunset was beautiful) I discovered my mistake. I tried using the Photo Filter set to Violet around 45% in PhotoShop CS5 to remove the yellow cast from the image. While I succeeded in removing the yellow color cast, the image became much darker. And I am having difficulty lightening up the image without the image becoming flat and almost monotone. Does anybody have any suggestions on how to remove the yellow color cast without darkening the image?

I am attaching 2 images: 1 with the yellow color cast and 1 without (I at least had the sense to make a 2nd exposure!).

Namaste
Daniel