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A LUT, acronym for Look-Up Table, is a mathematically precise way of taking specific RGB image values from a source image and modifying them to new RGB values by changing the hue, saturation and brightness values of that source image. In other words, LUTs are used to map one color space to another. Some high-end cameras supply a .cube file to use as input. There are several different ffmpeg plugins included with CinGG for using Lut's. These are:
For example, to use a 3dlut simply load your video, drop the F_lut3d plugin on that track, and bring up the lut3d controls window, highlight the file option, key in your file name (with path), and hit Apply to have the lut take effect. To easily adjust, move the fader slider in the patchbay for that video track. Only F_lut1d and F_lut3d allow for a file input and these usually are files with the .cube extension.