ImageReceiver Node Documentation

Overview

The ImageReceiver node is a part of the ComfyUI Impact Pack. This node functions within the node-based image editing environment to facilitate image transfer between nodes. Its primary purpose is to receive images that are sent from an ImageSender node via a shared identifier known as the link_id.

Functionality

The ImageReceiver node automatically receives images from any ImageSender node that shares the same link_id value. This functionality allows users to easily transfer images within complex workflows without the need for direct connections between nodes, enhancing flexibility in ComfyUI workflows.

Inputs

• link_id: This is the primary input for the ImageReceiver node. It is a unique identifier shared between the ImageReceiver and ImageSender nodes to facilitate the transmission of images. Both nodes must have the same link_id value for the image transfer to occur.

Outputs

• Received Image: The node outputs the image that has been received from the corresponding ImageSender. This image can then be used as input for further processing or manipulation in subsequent nodes within the ComfyUI workflow.

Example Use Case

In a ComfyUI workflow, the ImageReceiver node can be used to facilitate the transfer of images between disconnected parts of the workflow. For instance, if you have an image that needs to be enhanced or processed further but is initially generated in a separate part of the node graph, you can use an ImageSender-ImageReceiver pair to ship the image across the workflow seamlessly.

Workflow Steps:

1. Create & Process Image: Generate or process an image using your desired nodes.
2. Send Image: Utilize the ImageSender node to emit the image. Set a link_id on this node.
3. Receive Image: Place an ImageReceiver node elsewhere in the workflow. Assign it the same link_id as the ImageSender.
4. Further Processing: Use the output of the ImageReceiver for any additional transformations or enhancements in the workflow.

Special Features

• Flexibility & Modularity: By using the ImageReceiver and ImageSender nodes, you can create modular workflows where different parts of the workflow can be developed independently but communicate seamlessly via the link_id.
• Decoupling Workflows: This node helps in breaking down complex processing pipelines into manageable parts, which can be reused or modified independently without affecting the entire workflow.
• Ease of Use: The node requires minimal setup, as it only needs the user to define the link_id, making it straightforward to integrate into existing workflows.

Considerations

• Ensure that both ImageSender and ImageReceiver nodes have matching link_id values to successfully transfer images.
• This node does not handle image processing or alterations; it solely receives and forwards the image data.
• The effectiveness of the node largely depends on the logical structuring of the workflow, ensuring that link_ids are uniquely or appropriately assigned to prevent unintended image transfers.

The ImageReceiver node is essential for creating fluid and flexible workflows in ComfyUI, enabling users to manage complex image manipulation tasks with ease.