ComfyUI Node: Nuke Color Correct

Nuke Color Correct:

The NukeColorCorrect node is a powerful tool designed for HSV-based color correction, allowing you to adjust the hue, saturation, value, and contrast of an image. This node is particularly beneficial for fine-tuning the color balance and enhancing the visual appeal of your images. By leveraging the HSV color model, it provides a more intuitive way to manipulate colors compared to traditional RGB adjustments. The node's primary goal is to offer precise control over color attributes, enabling you to achieve the desired artistic effect with ease. Whether you're looking to subtly enhance an image or apply dramatic color shifts, NukeColorCorrect provides the flexibility and control needed to achieve professional-grade results.

Nuke Color Correct Input Parameters:

image

The image parameter is the input image that you want to apply color correction to. It serves as the base upon which all other adjustments are made. This parameter is required and must be provided for the node to function.

hue

The hue parameter allows you to shift the colors of the image along the color wheel. It is measured in degrees, with a range from -180.0 to 180.0. The default value is 0.0, meaning no shift. Adjusting the hue can change the overall color tone of the image, which is useful for creative effects or correcting color casts.

saturation

The saturation parameter controls the intensity of the colors in the image. It ranges from 0.0 to 3.0, with a default value of 1.0. A value of 0.0 will desaturate the image to grayscale, while higher values will increase the color intensity. This parameter is essential for enhancing or reducing the vibrancy of the image.

value

The value parameter adjusts the brightness of the image. It also ranges from 0.0 to 3.0, with a default value of 1.0. Lower values will darken the image, while higher values will brighten it. This parameter is useful for correcting exposure issues or creating mood lighting effects.

contrast

The contrast parameter modifies the difference between the light and dark areas of the image. It ranges from 0.0 to 3.0, with a default value of 1.0. Increasing the contrast will make shadows darker and highlights brighter, while decreasing it will flatten the image's tonal range. This is useful for enhancing details or achieving a specific artistic look.

mix

The mix parameter determines the blend between the original and the color-corrected image. It ranges from 0.0 to 1.0, with a default value of 1.0. A value of 0.0 will leave the image unchanged, while a value of 1.0 will apply the full effect of the color correction. This parameter allows for subtle adjustments and fine-tuning of the final output.

Nuke Color Correct Output Parameters:

IMAGE

The output is an IMAGE that has undergone the specified color corrections. This output reflects the adjustments made to the hue, saturation, value, and contrast, as well as the blending determined by the mix parameter. The result is a visually enhanced image that meets your artistic or corrective goals.

Nuke Color Correct Usage Tips:

• Experiment with small adjustments to the hue parameter to achieve natural-looking color shifts without introducing unwanted color casts.
• Use the saturation parameter to enhance the vibrancy of an image, but be cautious of oversaturation, which can lead to unnatural colors.
• Adjust the value parameter to correct underexposed or overexposed images, ensuring that details are preserved in both shadows and highlights.
• The contrast parameter can be used to add depth to an image, but excessive contrast may result in loss of detail in extreme highlights or shadows.
• Utilize the mix parameter to blend the corrected image with the original, allowing for subtle enhancements that maintain the image's natural appearance.

Nuke Color Correct Common Errors and Solutions:

Image input is not provided

• Explanation: The node requires an image input to function, and it cannot proceed without it.
• Solution: Ensure that you have connected an image to the image input parameter before executing the node.

Invalid hue value

• Explanation: The hue parameter must be within the range of -180.0 to 180.0.
• Solution: Check the hue value and adjust it to fall within the specified range.

Invalid saturation, value, or contrast value

• Explanation: The saturation, value, and contrast parameters must be within the range of 0.0 to 3.0.
• Solution: Verify that these parameters are set within the allowed range and adjust them accordingly.

Invalid mix value

• Explanation: The mix parameter must be between 0.0 and 1.0.
• Solution: Ensure that the mix value is within the specified range to avoid errors.