LUT RANGE FOR LUTCALC HOW TO
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LUT RANGE FOR LUTCALC SOFTWARE
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Technical LUTs – These types of LUTs are designed to transform an image from one color space / gamut to another.

What many post-pros don’t understand is that there are several types of LUTs:

LUT RANGE FOR LUTCALC SOFTWARE

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.

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. A LUT can also be used creatively to impose a specific ‘Look’ on a source image, such as the Bleach Bypass look. A LUT can be scientifically precise (such as moving from the sRGB color space to the DCI P3 Color Space).

LUT RANGE FOR LUTCALC GENERATOR

Updated: Janu– updated ARRI LUT generator text and linkĪ 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. Color Correcting With LUTs: One Approach.What it mainly demonstrates is that the SDR copy can be colorful and retain much of the sparkle of the HDR version.Tutorials / Color Correcting With LUTs: One Approach / What is a LUT (and how do you use a LUT for color correction)? Series Following is a link to my most recent YouTube HDR upload in HLG.

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YouTube has a help topic for content creators on how to create and attach a cube lut to your upload. In either case of HDR10 or HLG, the YouTube SDR copy will otherwise appear overly flat and comparatively lifeless primarily because the copy will be in 2020 color which will look flat on 709 monitor. This is an especially important step since currently most viewers will be watching the videos in SDR. For either format, you can attach a cube lut to your upload to give hints to the YouTube encoder how the SDR copy should look. With either one, YouTube will create an SDR copy.

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Since it is scene based gamma not display targeted nits, as your highlights stretch into the high brightness range the mid range rolls up as well, a more familiar 709 type of look that looks great in any light, less specular, you don't have to worry so much about skin tones blooming or makeup foundation jumping off the face into a separate bright color layer as can happen with improperly graded HDR10, but still an enhanced dynamic range viewing experience. It's much simpler to grade, looks fantastic but it is a different look. HLG does not have the benefit but also does not have the problem. The benefit has companion worries just mentioned, skin tones reaching too high. The benefit of greater color volume at high brightness nits is exclusive to PQ st2084 EOTF, thus HDR10, Dolby Vision and Technicolor.

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You need a HDR10 grading monitor or you'll be redoing it all trial and error scene by scene. The ability to separate, delineate specular highlights that can and should be pumped up to 1000+ nits has to be done carefully to prevent non-wanted features like skin tones from reaching the upper zones above 100 nits. Your talent will want you fired if you let that happen. This can be very realistic, as well there's more color volume retained as luminance is raised, which is another caveat to be careful about if trying to grade HDR10 on a SDR monitor, certain features like women's makeup foundation appears prominent as a separate layer if skin tones are put up into the upper HDR zones above 100 nits. Highlights in HDR10 are more specular in nature. HDR10 is more cinema like, retains more shadow detail, to see it consistently means viewing in darkened viewing conditions.

So either get a proper HDR10 monitor for grading or give up on that idea and use HLG which can look arguably better in some situations like viewing output in brightly lit viewing rooms, sports events, documentary, short form. That you can grade on a 709 monitor with a reasonable expectation the graded output for HLG will be close. The easiest path to YouTube HDR is to forget about HDR10 and do HLG instead. You'll be creating luts scene by scene because it uses display targeted brightness instead of scene gamma. Doing HDR10 without a proper HDR10 capable monitor will be difficult.

Lut range for lutcalc