lut.hpp is a C++ 11 single required source file, that can be used to achieve color correction and color grading, you can see ue4 docs for more information
#include "lut.hpp"
// Usage 1
auto lut = octoon::image::lut::parse("xxx.cube"); // load the lut from .cube file
for (std::size_t i = 0; i < image.size(); i++)
{
auto data = lut.lookup(rgb.r, rgb.g, rgb.b); // The (r,g,b) can be extended to support these types of std::uint8_t, std::uint16_t, std::uint32_t, float, double
rgb.r = data[0];
rgb.g = data[1];
rgb.b = data[2];
}
// Usage 2
auto lut = octoon::image::lut::parse("xxx.cube"); // load the lut from .cube file
lut.lookup(image.data(), image.data(), image.size(), 3); // The (r,g,b) can be extended to support these types of std::uint8_t, std::uint16_t, std::uint32_t, float, double
// Serializable to .cube stream
method 1 : std::cout << lut.dump();
method 2 : std::cout << lut;
// Serializable to image
auto image = octoon::image::Image(octoon::image::Format::R8G8B8UNorm, lut.width, lut.height);
std::memcpy((std::uint8_t*)image.data(), lut.data.get(), lut.width * lut.height * lut.channel);
image.save("C:\\Users\\Administrator\\Desktop\\1.png", "png");MIT License
Copyright (c) 2018 Rui
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