ComfyUI Node: 🪛 Preview from image

Preview from image [Crystools]:

The "Preview from image [Crystools]" node is designed to generate a detailed preview of an image by extracting and displaying its metadata. This node is particularly useful for AI artists who need to quickly access and review the metadata associated with an image, such as file information, resolution, date, size, and embedded prompts. By providing a comprehensive overview of the image's metadata, this node helps streamline the workflow, making it easier to manage and utilize image data effectively. The node can handle both new images and cached metadata, ensuring that you always have access to the necessary information without redundant processing.

Preview from image [Crystools] Input Parameters:

images

This parameter accepts an image file that you want to preview. The function of this parameter is to provide the node with the image whose metadata needs to be extracted and displayed. The impact of this parameter on the node's execution is significant, as it determines the source of the metadata to be processed. There are no specific minimum or maximum values for this parameter, but it must be a valid image file.

prompt

This optional parameter allows you to provide a custom prompt that will be included in the metadata preview. If not provided, the node will attempt to extract the prompt from the image itself. This parameter can influence the metadata displayed, especially if the image does not contain an embedded prompt. There are no specific minimum or maximum values for this parameter.

extra_pnginfo

This optional parameter allows you to include additional PNG information in the metadata preview. This can be useful for images that contain extra metadata stored in PNG chunks. The presence of this parameter can enhance the detail and accuracy of the metadata preview. There are no specific minimum or maximum values for this parameter.

Preview from image [Crystools] Output Parameters:

result

This output parameter contains the extracted metadata from the image. The function of this parameter is to provide a structured representation of the image's metadata, including file information, resolution, date, size, and any embedded prompts. This output is crucial for understanding the details and properties of the image.

ui

This output parameter provides a user interface representation of the metadata preview. It includes text and images that visually display the extracted metadata. The function of this parameter is to offer a user-friendly way to review the metadata, making it easier to interpret and utilize the information.

Preview from image [Crystools] Usage Tips:

• Ensure that the image file provided is valid and accessible to avoid errors during metadata extraction.
• Utilize the prompt and extra_pnginfo parameters to enhance the metadata preview with additional information, especially if the image lacks embedded metadata.
• Take advantage of the cached metadata feature to quickly access previously processed metadata without reprocessing the image.

Preview from image [Crystools] Common Errors and Solutions:

Invalid image file: <image>

• Explanation: This error occurs when the provided image file is not valid or cannot be found.
• Solution: Verify that the image file path is correct and that the file exists. Ensure that the file is a valid image format supported by the node.

Source: Empty

• Explanation: This error indicates that no image or metadata was provided to the node.
• Solution: Ensure that you provide a valid image file or metadata input to the node. Check that the input parameters are correctly set and not empty.

Metadata extraction failed

• Explanation: This error occurs when the node is unable to extract metadata from the provided image.
• Solution: Ensure that the image file is not corrupted and is in a supported format. If the image lacks metadata, consider providing additional information through the prompt and extra_pnginfo parameters.