Using GIMP: Correcting and Touching Up Your Images - GIMP 2.6 for Photographers: Image Editing with Open Source Software - page 53

In the following section, I will illustrate the development of a RAW image, a
backlit photograph, and the necessary work steps for developing and editing
the image with UFRaw before it's handed over to GIMP. Furthermore, I will
introduce RawTherapee, a program resembling UFRaw for developing digital
negatives yet with an additional range of functions and an ability to support
a wider range of file formats.
Figure 2.2
The edited image with minor color corrections. Note that the left pane reveals the slight changes that were made on the curve to correct
luminosity and on the slider to increase saturation.