To add a bit, a good start is to have pairs of chdk/jpg images of just about anything, taken at all major white balance presets in camera: Incandescent, Flash, Fluorescent, Sunny, Shadow, Cloudy. That _may_ help us populating the drop-down for WB presets, which IMHO is a step forward; however the chdk data may not have sufficient information to guess the camera model. In that case we may be stuck. But let's try and see first.
To add a bit, a good start is
To add a bit, a good start is to have pairs of chdk/jpg images of just about anything, taken at all major white balance presets in camera: Incandescent, Flash, Fluorescent, Sunny, Shadow, Cloudy. That _may_ help us populating the drop-down for WB presets, which IMHO is a step forward; however the chdk data may not have sufficient information to guess the camera model. In that case we may be stuck. But let's try and see first.