Documentation for ComfyUI Node: LayerUtility: HSV Value

Overview

The LayerUtility: HSV Value node is a component of the ComfyUI application designed for color manipulation within a workflow. Specifically, this node converts a color value, given in a specific format, into its corresponding Hue, Saturation, and Value (HSV) components. This provides users with a different representation of color, which can be especially useful in scenarios involving image editing, graphic design, and visual effects where color adjustments play a crucial role.

Functionality

This node is tasked with transforming a color input into three distinct components:

• Hue (H)
• Saturation (S)
• Value (V)

These components can then be used individually or in combination with other nodes within ComfyUI to achieve various color adjustments and effects.

Input

The node accepts the following input:

• Color Value: This is required and can be provided as either a string (representing a hexadecimal color code) or a tuple (representing an RGB color value).
  • If a string input is given, it should be in the form of a hexadecimal color string.
  • If a tuple input is given, it should contain three integers representing the Red, Green, and Blue components of a color.

There are no optional inputs for this node.

Output

When processed, this node produces three outputs:

• Hue (H): An integer representing the hue component of the input color.
• Saturation (S): An integer representing the saturation component.
• Value (V): An integer representing the value component.

These outputs are essential for tasks involving precise color adjustments based on the HSV color model.

Usage in ComfyUI Workflows

The LayerUtility: HSV Value node is typically used in workflows where color manipulation is key. Users might:

• Adjust the hue of an image to correct or enhance its color palette.
• Modify saturation levels to influence color intensity.
• Alter the value component to change the brightness of a color.

By integrating this node into a ComfyUI workflow, users can extract the HSV components from an input color, apply desired transformations, and pass the results to subsequent nodes for further processing, such as image rendering or dynamic color adjustments.

Special Features and Considerations

• Versatile Input Handling: The node conveniently accepts color inputs in both string and tuple formats, making it flexible for various color schemes and data types encountered in image processing tasks.
• Error Logging: Should the input not match the expected types (string or tuple), an error message is logged, indicating the requirement for the correct input format. This feature helps users debug and correct input issues promptly.
• Integration in Complex Workflows: The node's ability to break down colors into HSV components makes it a valuable tool in advanced workflows involving layers, filters, or animation sequences where color property modifications are crucial.

This node is part of the broader LayerUtility category, which denotes its affiliation with nodes that handle layer-related tasks and utilities. Its presence in advanced image processing workflows enhances creative flexibility and precision in color management.