Editing High contrast images is hard because you have at the same time to decrease the highlights, increase the dark areas, and at the same time keep the natual colours. Although not always possible, shooting RAW always helps. The RawTherapee offers a plethora of tools to "fix" your images. To illustrate the tools available in RawTherapee, we will edit a picture taken by Ivan Sagalaev and released under CC license in the Play Raw competition of the pixls.us forum here . Image after importing to RawTherapee. Step 1: Preparation. First we fix the distortion (if exists) in the Transform tab. Before start editing we always try to fix possible distortions of the image. Initial Histogram of the picture. Step 2: Editing the light. The second step is to press the "Auto Levels" button in the Exposure tab. This will light the dark places of the picture, but it is not enough.The sky now is it much lighter than before and the colors washed out. Exposu