ComfyUI Node: 完BiRefNet

Class Name


ZHO-ZHO-ZHO (Account age: 337 days)
Latest Updated
Github Stars

How to Install ComfyUI-BiRefNet-ZHO

Install this extension via the ComfyUI Manager by searching for ComfyUI-BiRefNet-ZHO
  • 1. Click the Manager button in the main menu
  • 2. Select Custom Nodes Manager button
  • 3. Enter ComfyUI-BiRefNet-ZHO in the search bar
After installation, click the Restart button to restart ComfyUI. Then, manually refresh your browser to clear the cache and access the updated list of nodes.

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完BiRefNet Description

Specialized node for BiRefNet model integration in ComfyUI, streamlining AI image processing tasks with high-quality results.


BiRefNet_Zho is a specialized node designed to facilitate the use of the BiRefNet model within the ComfyUI framework. This node is integral for AI artists who are looking to leverage advanced neural network capabilities for image processing tasks. BiRefNet is a sophisticated model that combines backbone networks, auxiliary classification, and refinement modules to deliver high-quality segmentation and localization results. By using BiRefNet_Zho, you can seamlessly integrate this powerful model into your workflow, enabling you to achieve precise and refined outputs with minimal effort. The node abstracts the complexity of model loading and execution, allowing you to focus on the creative aspects of your projects.

完BiRefNet Input Parameters:


The birefnet_model parameter specifies the model file to be loaded and used by the BiRefNet_Zho node. This parameter is crucial as it determines the specific configuration and weights of the BiRefNet model that will be applied to your tasks. The model file should be selected from a list of available BiRefNet models, which are typically stored in a designated folder. The correct selection of this model file ensures that the node operates with the intended architecture and pre-trained weights, leading to optimal performance and accurate results. There are no explicit minimum, maximum, or default values for this parameter, but it must be a valid model file from the specified directory.

完BiRefNet Output Parameters:


The birefnetmodel output parameter represents the loaded BiRefNet model instance. This output is essential as it provides the actual neural network model that will be used for subsequent image processing tasks. The model is fully loaded with the specified weights and configurations, ready to be applied to your data. This output allows you to chain the BiRefNet model with other nodes in your workflow, enabling a seamless and efficient processing pipeline. The birefnetmodel output is a complex object that encapsulates the entire neural network, making it a powerful tool for advanced image analysis and manipulation.

完BiRefNet Usage Tips:

  • Ensure that the birefnet_model parameter is set to a valid and compatible model file to avoid loading errors and to achieve the best performance.
  • Combine the BiRefNet_Zho node with other processing nodes in ComfyUI to create a comprehensive image processing pipeline that leverages the strengths of the BiRefNet model.
  • Experiment with different BiRefNet models to find the one that best suits your specific image processing needs and artistic goals.

完BiRefNet Common Errors and Solutions:

"Model file not found"

  • Explanation: This error occurs when the specified model file in the birefnet_model parameter cannot be located in the designated directory.
  • Solution: Verify that the model file exists in the correct directory and that the file name is spelled correctly. Ensure that the directory path is correctly configured in the ComfyUI settings.

"Failed to load model state_dict"

  • Explanation: This error indicates that there was an issue loading the model's state dictionary, possibly due to file corruption or incompatible model weights.
  • Solution: Check the integrity of the model file and ensure it is not corrupted. If the problem persists, try using a different model file that is known to be compatible with the BiRefNet_Zho node.

"CUDA out of memory"

  • Explanation: This error occurs when the GPU does not have enough memory to load and run the BiRefNet model.
  • Solution: Reduce the batch size or image resolution to lower the memory requirements. Alternatively, consider using a machine with a GPU that has more memory.

"Invalid model architecture"

  • Explanation: This error suggests that the model file specified does not match the expected architecture for BiRefNet.
  • Solution: Ensure that the model file is specifically designed for BiRefNet and is compatible with the version of the node you are using. Use only the model files provided or recommended by the BiRefNet developers.

完BiRefNet Related Nodes

Go back to the extension to check out more related nodes.

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