ComfyUI Node: Nuke Blur

Nuke Blur:

NukeBlur is a versatile node designed to replicate the blur functionality found in Nuke, a popular compositing software. This node is particularly useful for artists looking to apply a smooth, softening effect to their images, which can help in reducing noise or creating a sense of depth and focus. The NukeBlur node utilizes advanced mathematical techniques to achieve high-quality blurring effects, ensuring that the final output maintains the integrity and detail of the original image while providing a natural-looking blur. By leveraging multiple Gaussian passes, it can simulate different levels of blur quality, allowing you to choose the best option for your specific needs. This node is essential for enhancing visual aesthetics and achieving professional-grade results in your AI art projects.

Nuke Blur Input Parameters:

image

The image parameter is the primary input for the NukeBlur node, representing the image you wish to apply the blur effect to. This parameter is crucial as it serves as the base upon which all blurring operations are performed. The image should be in a compatible format that the node can process effectively.

size_x

The size_x parameter controls the horizontal extent of the blur effect. It determines how much the image will be blurred along the x-axis. A larger value results in a more pronounced horizontal blur, while a smaller value keeps the blur effect minimal. This parameter allows you to fine-tune the blur to achieve the desired artistic effect.

size_y

The size_y parameter is similar to size_x but affects the vertical extent of the blur. It controls the amount of blur applied along the y-axis. Adjusting this parameter helps in achieving a balanced blur effect that complements the horizontal blur, ensuring a cohesive and visually appealing result.

filter

The filter parameter specifies the type of filter used to apply the blur effect. Different filters can produce varying blur characteristics, allowing you to customize the look and feel of the blur. This parameter is essential for tailoring the blur effect to match your artistic vision.

quality

The quality parameter determines the number of Gaussian passes used to approximate the blur effect. It offers options such as "low," "medium," and "high," which correspond to the number of passes. Higher quality settings result in a smoother and more refined blur but may require more computational resources.

crop

The crop parameter indicates whether the blurred image should be cropped to its original dimensions. This is useful for maintaining the original size of the image after applying the blur effect, ensuring that the output remains consistent with the input dimensions.

mix

The mix parameter controls the blending of the blurred image with the original image. A value of 1.0 results in a fully blurred image, while a value of 0.0 retains the original image without any blur. This parameter allows for subtle adjustments to the intensity of the blur effect.

mask

The mask parameter is an optional input that allows you to specify a mask for the blur effect. The mask determines which areas of the image are affected by the blur, providing precise control over the application of the effect. This is particularly useful for creating selective blur effects that enhance specific parts of the image.

Nuke Blur Output Parameters:

IMAGE

The IMAGE output parameter represents the final result of the NukeBlur node. It is the processed image with the applied blur effect, ready for further use or integration into your project. This output maintains the quality and resolution of the original image while incorporating the desired blur characteristics, making it an essential component for achieving professional visual results.

Nuke Blur Usage Tips:

• Experiment with different size_x and size_y values to achieve the perfect balance of horizontal and vertical blur for your image.
• Use the quality parameter to adjust the smoothness of the blur effect, opting for higher settings when working on high-resolution images for a more refined look.
• Leverage the mask parameter to apply the blur effect selectively, allowing you to highlight or de-emphasize specific areas of your image.

Nuke Blur Common Errors and Solutions:

Image format not supported

• Explanation: The input image is in a format that the NukeBlur node cannot process.
• Solution: Convert the image to a compatible format, such as PNG or JPEG, before inputting it into the node.

Mismatched mask dimensions

• Explanation: The dimensions of the mask do not match the dimensions of the image.
• Solution: Ensure that the mask is resized to match the image dimensions using interpolation methods if necessary.

Excessive blur size

• Explanation: The size_x or size_y values are too large, causing an overly blurred image.
• Solution: Reduce the size_x and size_y values to achieve a more subtle blur effect that maintains image detail.