ComfyUI Node Documentation: img_hosting

Overview

The img_hosting node in ComfyUI LLM Party provides a functionality to upload images to several supported image hosting services. This allows users to easily share and retrieve images via URLs, which are useful for various applications, including building workflows where image accessibility over the internet is beneficial.

Functionality

This node is designed to convert an image stored in a tensor format and upload it as a PNG image to a specified image hosting service, subsequently returning the URL of the uploaded image. This process is particularly useful when the user needs to share or store images online in a convenient and accessible manner.

Inputs

The img_hosting node accepts the following inputs:

• image: This is an input image in the form of a tensor. The node converts this tensor into a PNG image format suitable for online sharing.

• api_key: A string representing the API key required by the chosen image hosting service. This key is necessary for authenticating the user’s requests with the image hosting API.

• img_hosting: A selectable option specifying the target image hosting service. Available options include chevereto, sm.ms, imgbb.com, and imagehub.cc. The default service is sm.ms.

• is_enable: A boolean value to activate or deactivate the node functionality. If set to false, the node will not perform any operations.

• img_hosting_url (optional): This input is required only if chevereto is chosen as the image hosting service. It should contain the API address of the user’s custom-deployed Chevereto server.

Outputs

The node produces two outputs:

• img_URL: A string containing the URL of the uploaded image. This URL can be used to access and share the image online.

• is_help: A string providing guidance on how to configure the node inputs, especially concerning the use of the chevereto option and the need for an API key.

Usage in ComfyUI Workflows

The img_hosting node is a versatile component in ComfyUI workflows that require image hosting solutions. It can be seamlessly integrated to:

1. Upload and Share Images: Automatically upload images generated or used within workflows to gain a sharable URL.
2. Interoperate with Other Services: As part of an image processing pipeline, hosted images can be accessed directly by other nodes or external services that require image URLs.
3. Online Image Access: Provides a simple means to make locally generated images accessible online, useful for showcasing outputs or inputs from AI-driven image generation processes.

Example Workflow Integration

1. Input an Image: Use an image processing or generation node to produce an image tensor.
2. Set API Key and Service: Provide a valid API key and select the desired hosting service in the img_hosting node.
3. Enable the Node: Ensure that the is_enable input is set to true to allow the upload process.
4. Retrieve the URL: Use the output image URL in subsequent nodes that may require an accessible image reference, or for direct user interactions.

Special Features and Considerations

• Service Selection: Users can select from multiple image hosting services based on their preference and regional access. This flexibility ensures compatibility with global users.

• Custom Hosting with Chevereto: Users can deploy their own image hosting solution with Chevereto, providing options for customization and potentially higher privacy/security depending on the deployment setup.

• API Key Requirement: Most of the hosting services require an API key for authentication. It is important to obtain and securely store these keys to enable the node functionality.

• Localized Language Support: The node provides localized instructions and labels based on the client system language settings or custom settings if specified.

The img_hosting node is a powerful tool for ensuring that images within ComfyUI workflows can be managed effectively online, broadening the scope of projects users can undertake with accessible image services.