Curve Shapers
A collection of 1D LUTs in CUBE and Photoshop Arbitrary Map (.amp Curves Preset) format for image shaping.
https://github.com/janvancoppenolle/LUT/tree/main/Shapers
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|---|---|
| Curve | Result |
Soft S-Curve
The result is equal to blending the image with itself using the simplified Soft Light blend mode.
\[f(x) = 3x^2-2\sqrt[3]{x}\] |
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|---|---|
| Curve | Result |
Sigmoid S-Curve
Very strong contrast S-Curve.
\[f(x)={1\over{1+e^{(6-12x)}}}\] |
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|---|---|
| Curve | Result |
Sharpen Contrast
There used to be a Kai Krause filter for Photoshop part of the KPT bundle with this name. It clips 25% black and 25% white.
\[f(x)={4x-1 \over 2}\] |
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|---|---|
| Curve | Result |
Cubic
This softens the contrast instead of enhancing it.
\[f(x)=2x^3-3x^2+2x\] |
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|---|---|
| Curve | Result |
Gamma Correction
\[f(x)=x^{1/\gamma}\] |
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|---|---|
| Curve | Result |