I created the blue image myself by guessing at the color of light that was hitting the image and subtracting it using GIMP (#524922 FWIW). It's not entirely scientific, but the resulting blues match very closely to the picture of the dress on Amazon [1], despite the image feeling a bit too dark.
The yellow one in your simulation is the one I feel is off, and was referring to with the blue removal. That's not how I perceive it when doing my mental white-balancing attempt (and I can't speak to how blue-dressers perceive it originally). I see that the pixels are light blue, but assume that the material is white. Lightroom does a much more convincing blue-cast removal -- looks pretty similar to this, where the gold is preserved but the white doesn't become yellow: https://pbs.twimg.com/media/B-0WdySWwAEqiDR.jpg (I would upload my version from lightroom, but I didn't bother to save it and I've spent far too much time on this subject for one night :) ).
I'll see if I can figure out a good color to subtract to get a better yellow one. IIRC, it was cribbed from one of the news articles on this that showed up tonight, but I'm not sure which one.
EDIT: I'm thinking that the right move might be adding #392c00 (rather than subtracting!).. And I've updated the final image with that instead of the one from before.
[1] http://www.amazon.co.uk/Roman-Womens-Detail-Bodycon-Dress/dp...