One very strange question:
Does someone have an idea how to import and scale a picture in GH and Rhino.
Would there be a way to import argb matrixes from an entire jpeg file. But I think this would be heavy for nothing and I would still not be able to see the pict in Rhino.
Have you tried the Image Sampler component? What exactly are you trying to achieve? If you want to apply a material with a texture to a surface, you'll have to script it.