This means that it can only be used for changes in luminance such as gamma correction, contrast, brightness and black and white levels. There are two major kinds of LUT: 1D and 3D.Ī 1D LUT on its own, when applied, can only change one input value to one output value. This is helpful for giving some idea to the film crew on-set of what the camera is capturing might end up looking like when it has been graded in post-production. LUTs can also be both creative and technical, such as those created by DIT (digital imaging technicians) and stored into ‘LUT boxes’ connected to on-set monitors that combine a camera LUT with a creative LUT. LUTs can also be used creatively: for colour enhancement, creating monochrome or sepia effects, boosting shadows and highlights, or replicating the look of a particular film emulsion – the possibilities are endless. Camera LUTs: LUTs that are often created by the camera manufacturer to convert camera logarithmic formats that digital cinema cameras typically capture footage in (which look very washed out to the eye) into Rec 709 or Rec 2020.Colour space conversion: LUTs that convert from different colour spaces, e.g.Display calibration: LUTs are used when calibrating monitors or other display devices for colour critical work such as editing or grading.LUTs are used for a variety of colour correction tasks, both technical and creative: But what does that mean in practical terms? In layman’s terms, a LUT can be considered as a kind of colour preset that can be applied to images or footage. Within the context of image editing, film and video, a LUT is used to remap the input colour values of source pixels to new output values based on data contained within the LUT. LUT (pronounced ‘lut’) is an acronym that stands for Look Up Table. What on earth is a 3D LUT and why should I care about it?īefore we go into exactly what 3D LUTs are, it is worth looking at what a common or garden LUT is. One of the key features of this new version is 3D LUT Import. If you have been following our social media and press releases, then you might be aware that we have just released a new version of our Tessera software, known as 3.2 to its friends.
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