Darktable application stores all the digital negatives in database and allows you to develop the raw images. It provides a fully non-destructive edits. Using this tool one can perform all basic, toned , visual effects, image corrections and toned image operations.Darktable supports 4x32 bit-floating point pixel buffers. It uses XMP sidecar and fast database for saving the raw and processed data. Supports wide range of image formats. It contains a powerful export system to export the processed files.