It's good in so far as it goes but in bad light it's still going to look kinda funky. The xrite software can create a profile for your camera and alter its bias to something closer to reality or to another camera. But 3D lut creator can correct the colors on the card and give a more natural rendition of the scenes colors. With a macbeth card or xrite color checker you have reference tiles of a known color the white to black tiles can be used to correct white balance to some extent with your regular white balance tool. E.g a sodium street light doesn't put out much if any bluelight but the blue filter still lets some red light through, and most of this gets treated as blue frequency light, making the photo look terrible. However light sources may not have a continuous spectrum. Camera manufacturers know this so they discount some of the recorded values in order to get something close. These filters are not perfect and will record some of the other 2 colors as well as the color they are meant to be collecting. So why use a LUT? Our camera's essentially use Red Green and Blue filters over each pixel site, recording 1/3rd of each pixels colors and then interpolating from other pixels to calculate the other 2 colors. There is also IWLTBAP LUT generator (converter) which you can get for free. 3D Lut creator comes in 3 editions costing from $99 to $250 it is the photoshop of LUT creation. In Affinity Photo and Photoshop you can perform certain adjustments and export them as a LUT. Image 2 LUT is simplest and cheapest but is limited to generating a LUT from one image which you can apply to another set of images. The best two Lut creation tools i've found are image2LUT and 3D LUT creator. You can create and use LUTs in several programs, e.g Affinity Photo and Photoshop and most video editing software. I've been looking into the use and creation of LUTs (look up tables) and I thought I might summarise what i've found and why you might want to use them for post processing.
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