ComfyUI Node: LoRA Plot Image Saver

LoRA Plot Image Saver:

The LoRAPlotImageSaver is a specialized node within the ComfyUI framework designed to enhance the visualization of images by overlaying text that indicates the LoRA (Low-Rank Adaptation) name and its corresponding strength. This node is particularly beneficial for AI artists who work with multiple LoRA models and need a clear and organized way to document the variations and strengths applied to each image. By automatically adding this information as a text overlay, the node helps in maintaining a visual record of the parameters used, which is crucial for iterative design processes and comparative analysis. The node processes images and metadata strings, ensuring that each image is annotated with the relevant LoRA details, thus streamlining the workflow and enhancing the clarity of the output.

LoRA Plot Image Saver Input Parameters:

images

This parameter accepts a list of images in the ComfyUI tensor format, which is typically structured as [batch, height, width, channels] with pixel values ranging from 0 to 1. The images are the primary input on which the text overlay will be applied. The quality and resolution of these images can impact the clarity of the overlay text.

metadata

The metadata parameter is a list of strings that contain information about the LoRA name and strength. This data is crucial as it determines the content of the text overlay on each image. The metadata should be formatted to include the LoRA name and optionally the strength, separated by an underscore.

text_color

This parameter specifies the color of the text overlay. It accepts a variety of color options such as "white", "black", "red", "green", "blue", "yellow", "cyan", "magenta", "orange", "gray", "lightgray", and "darkgray". The choice of text color can affect the readability of the overlay depending on the image background.

background_color

This parameter defines the background color of the text overlay, which helps in making the text stand out against the image. Similar to text_color, it accepts a range of color options. The background color should be chosen to contrast well with the text color for optimal visibility.

font_size

The font_size parameter determines the size of the text in the overlay. It is an integer value, with a default of 24. Adjusting the font size can help in ensuring that the text is legible without overwhelming the image.

padding

Padding specifies the space between the text and the edges of the overlay box. It is an integer value, with a default of 10. Proper padding ensures that the text does not appear cramped and maintains a clean appearance.

opacity

This parameter controls the transparency level of the text overlay's background. It is a float value ranging from 0 (completely transparent) to 1 (completely opaque), with a default of 0.8. Adjusting the opacity can help in balancing the visibility of the text against the image details.

LoRA Plot Image Saver Output Parameters:

output_images

The output_images parameter is a list of images that have been processed to include the text overlay. These images are returned in the ComfyUI tensor format, ready for further use or analysis. The overlay provides a clear visual indication of the LoRA parameters applied, aiding in documentation and comparison.

LoRA Plot Image Saver Usage Tips:

• Ensure that the metadata strings are correctly formatted to include both the LoRA name and strength, as this directly affects the accuracy of the text overlay.
• Choose text and background colors that provide sufficient contrast with the image to ensure the overlay is easily readable.
• Adjust the font size and padding to suit the resolution and content of your images, ensuring that the overlay does not obscure important details.

LoRA Plot Image Saver Common Errors and Solutions:

Incorrect metadata format

• Explanation: The metadata string does not follow the expected format, leading to incorrect or missing text overlays.
• Solution: Ensure that the metadata is formatted as "lora_name_strength" with an underscore separating the name and strength.

Text overlay not visible

• Explanation: The text or background color may not contrast well with the image, making the overlay difficult to read.
• Solution: Adjust the text_color and background_color parameters to ensure sufficient contrast with the image.

Overlay obscures image details

• Explanation: The overlay may be too large or opaque, covering important parts of the image.
• Solution: Reduce the font_size, increase the padding, or adjust the opacity to make the overlay less intrusive.