This repository provides nodes for manipulating image colors, enhancing contrast, and performing tonemapping, specifically designed for use with HDR and 16-bit images in ComfyUI. It allows users to adjust color values effectively, offering visual feedback to aid in the editing process.
- Supports advanced color manipulation techniques, including tonemapping and HDR image processing.
- Features a visualization tool that displays how adjustments will impact image color values, facilitating precise edits.
- Provides functionality for 16-bit image support, improving the quality of outputs by reducing banding and enhancing detail.
Context
This tool is a collection of nodes focused on color manipulation within the ComfyUI framework. Its primary purpose is to enhance the user's ability to edit and fine-tune images, particularly those requiring high dynamic range (HDR) adjustments and 16-bit precision, making it a valuable asset for artists and creators looking to achieve high-quality results.
Key Features & Benefits
The nodes included in this repository enable users to manipulate color values with precision and visualize the effects of changes in real-time. This capability is essential for artists who need to maintain control over color grading and tonemapping, ensuring that the final output meets their creative vision.
Advanced Functionalities
The tool includes specialized nodes for tonemapping, which behave differently depending on whether the input is HDR or standard dynamic range (SDR). Users can experiment with different multiplier values to optimize image quality, as standard tonemapping techniques may not apply directly to HDR images. Additionally, the support for 16-bit images allows for finer detail and less noise during processing, which is crucial for high-fidelity outputs.
Practical Benefits
By integrating this tool into their workflow, users can significantly enhance their control over color adjustments and tonemapping processes in ComfyUI. The ability to visualize changes before applying them not only streamlines the editing process but also improves the overall quality of the generated images, reducing artifacts and ensuring a more polished final product.
Credits/Acknowledgments
The repository is developed by city96, and it is acknowledged that the implementation of some features was inspired by research and articles in the field of HDR imaging, particularly a referenced article by Satya Mallick. The repository is open-source, encouraging contributions and further development from the community.