Hi! I wrote a small (442 lines) GTK front end for qcset. It allows you to modify

- brightness
- contrast
- whiteness
- quality
- gamma and white balance (rg:gg:bg:rw:gw:bw)

The program waits for a second after the user is done fiddling with the controls and runs qcset with the parameters as chosen by the user.

The command line for this program is the same as that for qcset. This provides a set of defaults to set the widgets to.

Here's the source:

Compile with
cc -o qcset-gtk `pkg-config --cflags --libs gtk+-2.0 qcset-gtk.c`