Lots of green and blue pixels are appearing in pictures taken with my Fuji Finepix S8100. It's always had these, but only increased with time.
Here's a picture that shows the pixels:
Trying to find what is wrong, I took a picture of a white paper at f/8 (you can see the faulty pixels on the right fringe of the paper):
and another one in a dark room at f/2.8:
I don't really know what to conclude from these. The lens is clean. Where could the problem come from, and can I fix it myself?