That is possible, but if that is the case, then you should not get a color image with just raw data, yet I do. I would think the scanner has a bayer filter on it so it is already baked into the raw data. That would have to be the case, otherwise even the simple act of just inverting a raw negative in ps would not give you color. If you mean demosaicing or debayering, then an actual raw converter like camera raw would be needed, but I suspect (could be wrong) that the scanner does this automatically. This is still raw image data, from that standpoint. But, not knowing much about what the scanner is doing, I could be wrong. Color perfect does not do demosaicing/debayering that I know of. I am trying some things out, but definitely the slide was underexposed.