ELI5: Explain Like I'm 5

3D LUT

Okay, kiddo, let me tell you about 3D LUT!

Do you remember when we learned about colors? We know that red, blue, and yellow are the primary colors, and when we mix them, we can create other colors.

Similarly, 3D LUT stands for 3-Dimensional Lookup Table. It's a tool that helps us adjust and accurately reproduce colors in any digital image or video.

Think of it like a coloring book. The coloring book outlines the picture, but we have to fill in the colors. The 3D LUT is like a master coloring page. It tells us exactly what color should be used everywhere within the picture. This is important because the combinations of colors in a digital image or video can be very tricky to get right.

So, 3D LUT helps us match colors accurately. It does this by breaking down colors into three different dimensions: hue, saturation, and luminance. In simple words, hue is the actual color like red or blue, saturation describes how intense or bright a color can be, and luminance determines how bright or dark a color is.

When we create a 3D LUT, we use specialized software to adjust these three dimensions of color for each pixel in a digital image or video. When we apply the 3D LUT to the image or video, it smoothly changes the colors to exactly what they should be.

In summary, 3D LUTs help us adjust and match colors accurately in digital images and videos by breaking them down into three different dimensions and using a master coloring page to get everything right!
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