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SpaceRay
SpaceRay

Posts: 12298
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In many photo editor software there is an option to use LUT color grading to modify the colors of the original source photo.
LUT = LookUp Table

Please, see the image attached at the end to see an example of 8 different LUTs.

Quote
LUTs are compatible with the most popular photo editing programs including Adobe Photoshop, Adobe Lightroom (CC and Classic), Affinity Photo, Skylum Luminar, ON1 Photo Raw, and many others…


I already know that Filter forge has a Lookup component, and so it could be possible to make a Lookup Table image to be used with this FF Lookup component BUT how would you use it for creating a filter for LUT color grading for photography inside FF? because I think it could be possible

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PART 1 - WHAT IS A LUT FOR PHOTOGRAPHY AND IMAGES PROCESSING
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According to this definition below

What is a LUT ? used for photography and create your own

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A LUT is a special image used to map one colorspace to another. LUTs are often used as editing presets in programs like Photoshop and Luminar among a variety of other video and image editing programs.

If you want to learn how to make a LUT of your own, check out my tutorial on How to make a LUT.
What’s the difference between a LUT and a preset?

As mentioned above a LUT is a special kind of image. This is why creating a LUT in Photoshop is the same process as editing an image, in essence a LUT and an image are the same thing. So while a preset is a set of adjustments that are program specific, a LUT is a special image that can be loaded into any program.
What can LUTs do?

LUTs can affect an image in only a couple specific ways. They can adjust the hue and brightness of colors. This means they can also adjust the contrast and gamma of an image. LUTs can’t make physical changes to the image, like adding, shapes, grain, or lens flares, and you can’t change a specific area of an image either.

LUTs can also do some interesting things that presets can’t do.


So according to this above, I should the find the image that is used in the LUT to transfer the color and then use the Lookup table component in filter forge to load the source image and apply the effect

So I wonder if it would be possible to make something similar to LUTs inside filter forge to be made

I do not want to use it for video or animations

Of course I understand that filter forge is not compatible with 3D LUTs cube files, but maybe there can be someway to simulate or replicate this effect in a FF filter, I mean the effect with sliders and not loading a file

EXPLAINED HERE WHAT IS A LUT

So to explain it correctly see this link

What Are LUTs and How Do You Use Them in Photography?
Quote

LUT is an abbreviation for “Look Up Table.” Each look up table is, at its simplest, a collection of numbers utilized as a color grading tool within a photo editing software. These numerical values are modifiers that alter the RGB values of a photo, enabling photographers to massively change and improve the appearance of an image by applying only a single filter. Each RGB value is assigned an entirely new value, and the application of an LUT implements all of these changes at once.


Here is also Explained what is a LUT

what is LUT? explained in detail here

Quote
LUT (known as Lookup Table) is a term used to describe a predetermined array of numbers that provide a shortcut for a specific computation. In the context of color grading, a LUT transforms color input values (camera) to your desired output values


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PART 2 - USING A LUT EXAMPLES
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ONE OF THE MANY POSSIBLE EXAMPLES OF USING LUTs

Here in an example of an possible image modified with 6 different LUTs, so you can see the original and the modified ones

One subject, six different LUTS: choosing a ‘look’ for your images

a LUT can also change very much a image if used other colors to modify much the source

VIDEOS OF USING LUTs

how to make your photo look cinematic fast using LUTs in Photoshop

Or this for On1 photo raw

how to use LUT effects on photos

ON1 PHOTO RAW 2021 TRIAL WITH EXAMPLE USING LUTS

I have just downloaded the trial of 15 days of On1 Photo Raw Trial and have seen how they are using the LUTs and it looks very cool and interesting, so this is why I decided to put this thread

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PART 3 - DOWNLOAD FREE LUTS AVAILABLE
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FREE LUTS AVAILABLE TO DOWNLOAD

World's Largest Collection of FREE LUTs website

Video about how to use this website

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PART 4 - LUTS INFORMATION THAT I COULD NOT FIND IN FILTER FORGE WEBSITE
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FF FORUM AND FILTER LIBRARY

I have made a search for "LUT" or "Color grading" both in the FF filter library and forum and there is not any filter or any thread that has something similar to this LUT or color grading

Thanks for any possible help


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PART 5 - EXAMPLE IMAGE SCREENSHOT OF USING LUTS ON THE ON1 PHOTO RAW SOFTWARE
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Here is the example I have told at the beginning using the trial version of this software
as you can see the source image can be changed much with their built-in included LUTS (or the ones you can download for free from their website)

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