Do Herbal A and Herbal B correspond to differences in imagery?

[Koen G]

Hi Rene, I used a function in photoshop that averaged out an area of pixels. Something like 5x5 would already give great results, but I took a larger area whenever possible (although some testing showed that there was usually no meaningful difference beyond 10x10).

I could probably have chosen a better color scale, but went with hue, saturation and brightness because mixing paints cam also be described in those terms. I was unable to find what would be the best approach when sampling scans of medieval manuscripts...

I wonder if the prominence of red in herbal A might point to such different stages of painting. Although the text was written after the images; so there are several possible scenarios.