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ComfyUI-BiRefNet-lite

10

Last updated
2025-05-21

This repository provides a ComfyUI node that integrates the BiRefNet model, allowing for efficient chunked loading on both CPU and GPU, along with caching capabilities. It is designed to enhance the performance and flexibility of image processing workflows within the ComfyUI environment.

  • Supports chunked loading, enabling users to manage memory efficiently by loading only parts of the model as needed.
  • Features model caching, which reduces load times and improves overall performance by storing previously used model data.
  • Offers multiple cropping methods, including putalpha, naive, and alpha_matting, allowing for versatile image manipulation.

Context

This tool serves as a node within ComfyUI that incorporates the BiRefNet model, a state-of-the-art framework for image segmentation and processing. Its primary purpose is to facilitate advanced image editing tasks by leveraging the model's capabilities while optimizing resource usage.

Key Features & Benefits

The chunked loading feature allows users to specify how much of the model is loaded into memory, which is particularly beneficial for users with limited resources or those working with large models. Model caching further enhances efficiency by storing frequently accessed data, minimizing the need for repeated loading. The inclusion of various cropping methods provides users with flexible options for image manipulation, catering to different project requirements.

Advanced Functionalities

This tool supports advanced functionalities such as the mask_precision_threshold parameter, which allows users to control the accuracy of the mask generated during image processing. Additionally, it includes support for loading models in the ONNX format, broadening compatibility with different model architectures and enhancing the versatility of the workflow.

Practical Benefits

By integrating this tool into their workflows, users can expect improved control over memory usage and processing speed, leading to a more efficient and streamlined experience in ComfyUI. The ability to manage model loading and utilize various cropping techniques enhances the quality and precision of image outputs, making it a valuable asset for artists and developers alike.

Credits/Acknowledgments

This project credits the original authors of the BiRefNet model, specifically the repository maintained by ZhengPeng7. Contributions from other projects, such as MoonHugo's ComfyUI-BiRefNet-Hugo and Daniel Gatis's rembg, have also been acknowledged for their valuable code references.