ComfyUI Node: Image Chromatic Aberration

Image Chromatic Aberration:

The Image Chromatic Aberration node is designed to simulate the visual effect of chromatic aberration, a common optical issue where a lens fails to focus all colors to the same convergence point. This effect can add a unique, artistic touch to your images by creating a slight color fringing around the edges of objects, enhancing the overall visual appeal. The node allows you to control the intensity and radius of the aberration, providing flexibility in achieving the desired look. By manipulating the red, green, and blue color channels independently, you can create a variety of chromatic aberration effects, from subtle to dramatic, making your images stand out with a professional and polished appearance.

Image Chromatic Aberration Input Parameters:

image

This parameter accepts the input image on which the chromatic aberration effect will be applied. The image should be in a compatible format that the node can process.

r_offset

This parameter controls the horizontal and vertical offset for the red color channel. Adjusting this value will shift the red channel, creating a color fringing effect. The default value is typically set to 0, with a range that can be adjusted based on the desired intensity of the effect.

g_offset

This parameter controls the horizontal and vertical offset for the green color channel. Similar to the r_offset, adjusting this value will shift the green channel to create the chromatic aberration effect. The default value is usually 0, and it can be adjusted to achieve the desired look.

b_offset

This parameter controls the horizontal and vertical offset for the blue color channel. By adjusting this value, you can shift the blue channel, contributing to the overall chromatic aberration effect. The default value is typically 0, with adjustable ranges to fine-tune the effect.

intensity

This parameter determines the overall intensity of the chromatic aberration effect. A higher intensity value will result in a more pronounced color fringing, while a lower value will produce a subtler effect. The default value is usually set to a moderate level, with a range that can be adjusted to suit your artistic needs.

fade_radius

This parameter controls the radius over which the chromatic aberration effect fades out. A larger radius will create a more gradual transition, while a smaller radius will result in a sharper effect. The default value is typically set to provide a balanced fade, with adjustable ranges to customize the effect.

Image Chromatic Aberration Output Parameters:

image

The output parameter is the processed image with the applied chromatic aberration effect. This image will exhibit the color fringing and other visual characteristics defined by the input parameters, providing a unique and enhanced visual appearance.

Image Chromatic Aberration Usage Tips:

• Experiment with different r_offset, g_offset, and b_offset values to achieve various chromatic aberration effects, from subtle to dramatic.
• Adjust the intensity parameter to control the overall strength of the effect, ensuring it complements your image without overwhelming it.
• Use the fade_radius parameter to fine-tune the transition of the chromatic aberration effect, creating a more natural or pronounced look as desired.
• Combine the chromatic aberration effect with other image processing nodes to create complex and visually appealing compositions.

Image Chromatic Aberration Common Errors and Solutions:

Image format not supported

• Explanation: The input image format is not compatible with the node.
• Solution: Ensure the input image is in a supported format, such as JPEG or PNG.

Invalid parameter value

• Explanation: One or more input parameters have values outside the acceptable range.
• Solution: Check the parameter values and ensure they are within the specified ranges. Adjust the values accordingly.

Image processing failed

• Explanation: An error occurred during the image processing operation.
• Solution: Verify that all input parameters are correctly set and the input image is valid. If the problem persists, try using a different image or adjusting the parameter values.