Figures and FG/BG-selective filtering

Some figures for the write-up:

The next two figures show the results of flash/no-flash integration (still very hacked, since hardware support for timing flash isn't available in the current FCam release). The alternating flash/no-flash shots are used to determine foreground (FG) from background (BG); filter is then applied only on FG or BG.

Some more figures:

The remaining figure will be the perf measurements.