ComfyUI Node: Save image with CivitAI-compatible metadata

Save image with CivitAI-compatible metadata:

The LF_SaveImageForCivitAI node is designed to save images with metadata that is compatible with CivitAI, a platform for sharing and discovering AI-generated art. This node ensures that the images you save include all necessary metadata, making them easily shareable and discoverable on CivitAI. By using this node, you can streamline the process of preparing your AI-generated images for upload, ensuring that all relevant information is embedded within the image file. This can include details such as the prompt used to generate the image, the model parameters, and any other pertinent data that can help others understand and replicate your work. The primary goal of this node is to facilitate the sharing of AI art by embedding comprehensive metadata directly into the image files.

Save image with CivitAI-compatible metadata Input Parameters:

extra_pnginfo

This parameter allows you to include additional metadata in the PNG file. It can be used to add custom information that might be relevant for your specific use case. The extra metadata can enhance the discoverability and context of your image on CivitAI. There are no strict minimum or maximum values, as it depends on the metadata you wish to include.

node_id

The node_id parameter is used to uniquely identify the node within the workflow. This is important for tracking and managing the node's operations, especially in complex workflows with multiple nodes. It ensures that the correct node is referenced during execution.

prompt

The prompt parameter contains the text prompt that was used to generate the image. This is a crucial piece of metadata for CivitAI, as it provides context on how the image was created. Including the prompt helps others understand the creative process and potentially replicate the results.

images

The images parameter is the buffer containing the image data that you want to save. This is the core input for the node, as it represents the actual visual content that will be saved to disk with the accompanying metadata.

filepath

The filepath parameter specifies the location on disk where the image will be saved. This should be a valid path where you have write permissions. The path can include the desired filename and extension.

add_timestamp

The add_timestamp parameter is a boolean flag that indicates whether to append a timestamp to the filename. This can be useful for versioning and ensuring that each saved image has a unique filename. The default value is typically False.

extension

The extension parameter specifies the file format for the saved image, such as .png or .jpg. This determines the format in which the image will be stored on disk. The choice of extension can affect the image quality and file size.

quality

The quality parameter is used to set the compression quality for the saved image, particularly for formats like JPEG. It typically ranges from 0 to 100, with higher values indicating better quality and larger file sizes. The default value is usually set to a high quality.

civitai_metadata

The civitai_metadata parameter allows you to include specific metadata that is required or recommended by CivitAI. This can include information about the AI model, training data, and other relevant details that enhance the image's context and discoverability on the platform.

Save image with CivitAI-compatible metadata Output Parameters:

file_names

The file_names output parameter returns a list of filenames for the images that were saved. This provides a way to track and reference the saved files within your workflow. Each filename corresponds to an image that was processed and saved by the node.

Save image with CivitAI-compatible metadata Usage Tips:

• Ensure that the prompt parameter accurately reflects the text used to generate the image, as this metadata is crucial for CivitAI.
• Use the add_timestamp parameter to avoid filename conflicts and maintain version control of your saved images.
• Adjust the quality parameter based on your needs for image quality versus file size, especially when saving in formats like JPEG.

Save image with CivitAI-compatible metadata Common Errors and Solutions:

"Invalid file path"

• Explanation: The specified filepath is not valid or you do not have write permissions.
• Solution: Verify that the filepath is correct and that you have the necessary permissions to write to the specified location.

"Unsupported file extension"

• Explanation: The extension parameter is set to a file format that is not supported.
• Solution: Ensure that the extension is set to a supported format such as .png or .jpg.

"Image buffer is empty"

• Explanation: The images parameter does not contain any image data.
• Solution: Check that the images buffer is correctly populated with the image data you intend to save.

"Metadata exceeds allowable size"

• Explanation: The metadata provided in extra_pnginfo or civitai_metadata is too large to be embedded in the image file.
• Solution: Reduce the amount of metadata or split it into smaller chunks to fit within the allowable size limits.