What is a LUT?

What is a LUT(and how do you use a LUT)?

A Look-Up Table (LUT) is mathematically precise way of taking specific RGB image values form a source image – and modifying them to new RGB values by changing the hue, saturation and brightness values of that source image. A LUT can be scientifically precise (such as moving from the sRGB color space to the DCI P3 Color Space). A LUT can also be used creatively to impose a specific ‘Look’ on a source image, such as the Bleach Bypass look.

When reading about LUTs you’d think that there must be one single perfect LUT for whatever operation you’re performing… for instance, taking the LOG-recorded images from a Digital Cinema Camera and turning them into properly viewable High-Definition images.

You’d also think any LUT that comes from a camera manufacturer or that ships with your color grading software is a precise (and perhaps fool-proof) method of getting your ‘flat’ LOG images into a nice rich HD image.
Not so.

Click here to continue to read the original article from Patrick Inhofer: https://mixinglight.com/color-tutorial/understanding-luts/

Credits: Mixinglight.com