SILKYPIX helps you improve photos with multiple light source based issues with its White Balance tools.
Color Correction of Multiple Light Sources
You camera will make decisions on white balance when multiple types of light sources are present. This example scene was shot under florescent and ambient lighting. More correctly, this creates a problem with color temperature because of the measured color of two sources of light in the image.
This photo was taken under a very strong florescent light, but also was influenced by ambient light coming from the back. The two light sources resulted in different color temperatures in different parts of the image. Use the Multi-Light Source Compensation slider to harmonize color temperatures in your photo.