Where data has been clipped, filmic rgb offers a “highlight reconstruction” feature to help mitigate the effects of the clipping and blend it smoothly with the rest of the image. specular highlights reflecting off shiny objects) it may be acceptable to have some clipping, but be aware that any clipped data in your image is irrevocably lost. In such cases you can use the exposure compensation dial in your camera to raise or lower the exposure – the darktable exposure module can automatically take this into account when processing your image. For scenes dominated by dark tones, it may over-expose the image and end up clipping the highlights. Sometimes, for scenes dominated by light tones, the camera will underexpose the image to bring those light tones more towards middle-gray. The default auto-exposure metering mode in your camera will normally expose the image so that the average brightness in the image tends towards middle-gray. This technique ensures you make maximum use of the dynamic range of your camera’s sensor. It is called “exposing to the right” because the in-camera histogram should be touching all the way up to the right hand side without peaking at the right hand side (which could indicate clipping). This means exposing the shot so that the exposure is as bright as possible without clipping the highlights. In order to get the best from this module, your images need some preparation: capturing (ETTR) In-camera, it is recommended that you use a technique known as “Expose To The Right” (ETTR). Do not overthink the numbers that are presented in the GUI to quantify the strength of the effects. Note: Despite the technical look of this module, the best way to set it up is to assess the quality of the visual result. While the underlying principles have not changed much, the default settings and their assumptions have, so users of the previous version should not expect a 1:1 translation of their workflow to the new version. The following video (by the developer of this module) provides a useful introduction: filmic rgb: remap any dynamic range in darktable 3.įilmic rgb is the successor to the filmic module from darktable 2.6. While it is primarily intended to recover high-dynamic-range images from raw sensor data it can be used with any image in place of the base curve module. The module is derived from another module of the same name in Blender 3D modeller by T. Highlights will need extra care when details need to be preserved (e.g. It protects colors and contrast in the mid-tones, recovers the shadows, and compresses bright highlights and dark shadows. This module can be used either to expand or to contract the dynamic range of the scene to fit the dynamic range of the display. Remap the tonal range of an image by reproducing the tone and color response of classic film.
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