Camera calibration tool concept

Question

Hi all.The question is more out of curiosity than to solve a problem.Many people are familiar with the camera calibration tool and how this tool works.But. At first glance, you might think that the tool is similar to the channel mixer tool in Photoshop, but this is not the case.The channel mixer either compresses or decompresses the saturation of one of the channels, and the camera calibration tool compresses or decompresses the saturation of all channels, based on only one of them, as I understand it.That is, if we try to compress the saturation in the blue channel in the channel mixer, we will simply see a lack of variability between blue and yellow colors. And, if we remove the saturation in the blue channel, in the camera calibration tool, we will see how the overall saturation changes.That is, if we try to compress the saturation in the blue channel in the channel mixer, we will simply see a lack of variability between blue and yellow colors. And, if we remove the saturation in the blue channel, in the camera calibration tool, we will see how the overall saturation changes.Is it possible in the channel mixer tool to simulate the behavior of the camera calibration tool? That is, what logic should be followed? Well, or what is the principle of operation of the camera calibration tool? Can someone break down and explain this process?

EsTaF · Accepted Answer

Thank you. Really.All links describe how the tool works and how it differs from other tools. But... the question was about how to reproduce this approach using a channel mixer, or similar tools.Example. I work in Adobe Premiere and want to replicate the camera calibration tool in it. Let it not be Adobe Premiere, but Davinci Resolve - it doesn’t matter. Even photoshop.

Lew_S · Answer

In LrC, it's called the *CAMERA* Calibration tool because it can be used to create a baseline for each camera/lens combination you may have. Different camera manufacturers and lens makers render color slightly differently. Adjusting the colors coming out of your raw files by calibrating them gives you a uniform starting place for your color edits.  I don't believe this tool is intended for editing the colors of an individual image. You can do that with the HSL tool. Most lr gurus, however use it for this purpose, explaining that there is a difference between each indicvidual pixel and the image as a unity. They mean the same, and simply have not read Adobe's documentation for the tool. To state it simply: Calibration addresses the camera/lens combo that produced the images, & hsl is for the image on your monitor.

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