FAQs About Video LUTs

What are video LUTs?

Video Look-Up Tables (LUTs) are mathematical algorithms or formulas that transform or map the colors in any image or video from one color space to another. They are used to color grade, correct or stylize video footage in post-production so that the colors meet a specific standard or achieve a desired aesthetic.

LUTs can be pre-programmed into the video software or camera, or customized for specific projects. They can simplify the color grading process, saving time and effort, and help ensure consistency across multiple clips or projects.

What is the purpose of using video LUTs?

Video LUTs are used for various post-production purposes in video editing. The most common use is to correct and balance the colors of the video footage to produce the most accurate and pleasing image possible. They help in making sure the colors in different scenes or shots match, providing a consistent look to the final product.

Another vital use of LUTs is to add creative color grading effects to the footage. By changing the tones, contrast, saturation, and other aspects, video editors can create a desired mood or atmosphere, or mimic a particular filmic look.

How do you use a video LUT?

Using a video LUT requires a video editing software that supports this function. Some commonly used software are Adobe Premiere Pro, Final Cut Pro, DaVinci Resolve and more. Once you have your software ready, you can import the LUT file into it, and apply it to your video footage. The detailed steps may vary depending on the software you are using.

LUTs can be applied globally to the entire video or selectively to certain parts of the footage. They can be adjusted and tweaked to match your specific needs. Always remember, LUTs should be used as a starting point for color grading, not a shortcut to replace it.

Can you create your own video LUTs?

Yes, you can create your own video LUTs using video editing software that provides this functionality. This allows you to make a personalized color grading style that suits your unique aesthetic or matches the mood of your content. It's important to note that creating a LUT requires a solid understanding of color theory and grading.

Once you've created a LUT, you can save it and use it on other footage, share it with others, or even sell it as a product if it's unique and professional. This can help you keep consistency in your works and increase work efficiency as well.

What are the types of video LUTs?

There are generally two types of video LUTs: technical LUTs and creative LUTs. Technical LUTs are used for color correction – they adjust raw footage to appear more natural to the human eye. They're used to match and normalize footage from different cameras or corrects colors for specific filming conditions. For example, LOG-LUTs convert log footage (low contrast, washed out colours) into Rec.709 (standard video format with normal contrast and colors).

On the other hand, creative LUTs are used for stylizing the footage. They apply a predefined look or style to the video footage, changing colors and tones to achieve desired aesthetics. These LUTs can be used to mimic a certain film look, or to create a unique color grading style. It's important to know that creative LUTs should be applied after the footage has been color corrected with a technical LUT.