Overview
RawTherapee is a powerful, cross-platform raw photo processing system designed for users ranging from enthusiast newcomers to professional photographers. It leverages a non-destructive, 32-bit (floating point) processing engine alongside modern demosaicing algorithms and advanced color and detail editing tools to develop high-quality images from raw files, including High Dynamic Range DNG. The system supports best-in-class demosaicing techniques, including the ability to use two algorithms on the same image, compositing pixel-shift raw files with automatic ghost masking, and working with multiple-frame raw files. Further capabilities include dark frame subtraction, flat field correction, and hot/dead pixel correction. Being Free and Open Source software (GPLv3), RawTherapee is customizable and modifiable to suit specific user needs.
