I got rid of the actual image for each frame, and generated a mask that was "pure blur" then I subtracted it. I did a bit of super-resolution processing, but the primary reason for stacking all the good images in the set was to build the image back up, since the grayscale was, um, strained.
Some of the images, if you look at them closely, were quite good under the haze. For example, this one:
Here is an improved version.
Stacking the image took a bit of re-projection, because NAVCAM is acutally a Cassini wide angle camera, so there is a lot of time between frames.