What exactly do you mean by light scattering (its a pretty general term)?

Also the colors get washed out when converting the raw frames into a video. Could be a gamma or color space problem but also data loss from the conversion to yuv420. It also looks a lot different depending on the video player...
I am using ffmpeg to convert the images to a h264 encoded video.

This is one of the raw frames:


This is a similar frame on vimeo:


Edit:
I made some more comparisons between videos and raw frames and all videos look fine in vlc, but in quicktime the video I made directly from the frames looks very washed out and the video I made from a lossless video looks a bit better, but still wrong. Also vimeo looks washed out and youtube is much worse.
Then again, it looks all a lot different on my other monitor...