ComfyUI Node: Hue

Hue:

The Hue node is a powerful tool in image processing that allows you to adjust the hue of an image, effectively altering the color balance and mood of the image. This node is particularly useful for artists and designers who want to experiment with different color schemes or correct color imbalances in their images. By adjusting the hue, you can shift the colors in an image along the color wheel, which can dramatically change the visual impact of the image. This capability is essential for creating visually appealing artwork or for matching the color palette of an image to a specific theme or style. The Hue node provides a straightforward method to achieve these adjustments, making it an invaluable asset in your image processing toolkit.

Hue Input Parameters:

images

This parameter represents the input image or images that you want to process. The node expects images in a specific format, typically as tensors, which allows for efficient manipulation and transformation. The images parameter is crucial as it serves as the base upon which the hue adjustments will be applied.

factor

The factor parameter determines the degree of hue adjustment applied to the input images. It is a floating-point value that can range from -3.141516 to 3.141516, with a default value of 0.0. This range corresponds to the full circle of the color wheel, allowing for both clockwise and counterclockwise shifts in hue. A positive factor will shift the colors in one direction, while a negative factor will shift them in the opposite direction. The factor's impact is significant as it directly influences the color transformation, enabling subtle or dramatic changes in the image's appearance.

Hue Output Parameters:

IMAGE

The output of the Hue node is an image or a set of images with the adjusted hue. This output retains the original image's structure and details but with a modified color balance according to the specified hue factor. The transformed image can be used for further processing or as a final product, depending on your artistic goals. The output is essential for visualizing the effects of the hue adjustment and for integrating the modified image into your creative projects.

Hue Usage Tips:

• Experiment with small increments of the factor parameter to achieve subtle color shifts that enhance the image's mood without overwhelming the original colors.
• Use the Hue node in combination with other color adjustment nodes, such as Saturation or Brightness, to create a comprehensive color grading workflow that enhances the overall aesthetic of your images.

Hue Common Errors and Solutions:

"Invalid image format"

• Explanation: This error occurs when the input image is not in the expected format or data type.
• Solution: Ensure that the input images are properly formatted as tensors and are compatible with the node's processing requirements.

"Factor out of range"

• Explanation: This error indicates that the factor parameter is set outside the allowable range of -3.141516 to 3.141516.
• Solution: Adjust the factor value to fall within the specified range to ensure proper hue adjustment.