LUT (Lookup Tables) is a very simple numerical conversion table. Different color input values are “mapped” to a set of output values, which can change the color of the image.
In the early days, it was the most in the video and film industry. A wide range of applications have also been introduced into the field of image processing in recent years.
First look at the effect comparison:
The photography tutorial is on schedule, and it’s good to think about writing text tutorials occasionally.
Everyone knows that the tools that can be tinted in Photoshop are diverse and rich, the most basic curve tools, optional color tools and even gradient maps.
We have some understanding in the previous video tutorials. Diversified choices are not always a bad thing, so today let's take a look at the color lookup table tool.
LUT (Lookup Tables) is a very simple numerical conversion table. Different color input values are “mapped” to a set of output values, which can change the color of the image.
In the early days, it was the most in the video and film industry. A wide range of applications have also been introduced into the field of image processing in recent years.
How to Use
The last line in the second line of Photoshop's adjustment panel is the color lookup table tool.
The adjustment layer of the color lookup table is established by a single machine.
A drop-down menu appears in the "Load 3D LUT" option, which stores some of the LUT presets that Photoshop comes with by default. You only need to select a preset, then the color of the photo will change accordingly.
However, usually only one preset is selected, and it is difficult to bring good color tonality to photos. Many students may give up trying when they come here. However, there is no limit to the number of adjustment layers in the PS.
It is a good idea to complete the color adjustment. In the first color lookup table we select a "TealOrangePlusContrast".
Modify the opacity of the adjustment layer to "30%".
Continue to create a second "color lookup table", this time select "filmstock_50" and modify the opacity to "20%".
Then create a third "color lookup table" and select "Crisp_winter" to modify the opacity to "15%".
The effects of the above three different LUTs are initially formed, and finally a curve is created to make a small adjustment of light and dark.
In the repair of different types of photos, try to combine the presets in the "color lookup table" with different situations, and most of the default presets in Photoshop are good after reducing the opacity, such as " EdgyAmber", "Foggynight" and so on are all used by me. You can try it as much as possible.
Create your own LUT file
In addition to the convenience and speed of using LUT color, we can also save the combined effect or color scheme into another LUT file, so that the next time you use it, you only need one button to choose.
There are some prerequisites for generating a LUT file. First, your working document must be a simple combination of the background layer (with a lock flag) + adjustment layer.
Adjustment layers have no type restrictions, curves, levels, optional colors, and so on, but there can be no changes on the mask, and then come to the file-export-color lookup table.
In the dialog box that pops up, name the name of the LUT file in the first item, select “Medium” or “High” in the grid point option (try not to select the highest), select 3DL or CUBE in the file format, and confirm the save.
Then next time we are using this color scheme, just create a "color lookup table" tool in "Load 3DL", click "Load 3DL", and then select our saved LUT file.
You can directly achieve the effect of color grading.
