ComfyUI Node: Image Bloom Filter

Image Bloom Filter:

The Image Bloom Filter node is designed to enhance the visual appeal of your images by adding a bloom effect, which creates a soft, glowing halo around bright areas. This effect is commonly used in photography and digital art to give images a dreamy or ethereal quality. The node works by applying a Gaussian blur to the image, creating a high-pass filter, and then blending this with the original image to amplify the bright regions. The result is an image with enhanced highlights and a soft glow, making it more visually striking and aesthetically pleasing.

Image Bloom Filter Input Parameters:

input_image

This parameter takes the image you want to apply the bloom filter to. The image should be in a format compatible with the node, typically a tensor or PIL image.

radius

The radius parameter controls the extent of the Gaussian blur applied to the image. A larger radius will result in a more pronounced blur, affecting a larger area around the bright spots. The default value is not specified, but it typically ranges from 0 to 100, with higher values creating a more intense bloom effect.

bloom_factor

The bloom factor determines the intensity of the bloom effect. It is a multiplier that adjusts the brightness of the bloom filter. A higher bloom factor will make the glow more intense and prominent. The default value is not specified, but it usually ranges from 0.0 to 1.0, with higher values producing a stronger effect.

Image Bloom Filter Output Parameters:

blended_image

This is the final output image with the bloom effect applied. The blended image combines the original image with the bloom filter, resulting in enhanced highlights and a soft, glowing halo around bright areas. This output is typically in the same format as the input image, either a tensor or a PIL image.

Image Bloom Filter Usage Tips:

• Experiment with different radius values to achieve the desired level of blur and glow. Smaller values will create a subtle effect, while larger values will produce a more dramatic bloom.
• Adjust the bloom factor to control the intensity of the glow. A higher bloom factor will make the effect more prominent, which can be useful for creating a dreamy or ethereal look.
• Use the bloom filter on images with strong highlights to enhance the visual impact. The effect works best on images with bright areas that can be accentuated by the glow.

Image Bloom Filter Common Errors and Solutions:

Image format not supported

• Explanation: The input image is not in a compatible format.
• Solution: Ensure that the input image is either a tensor or a PIL image before applying the bloom filter.

Radius value out of range

• Explanation: The radius value provided is outside the acceptable range.
• Solution: Check the radius value and ensure it is within the typical range of 0 to 100.

Bloom factor value out of range

• Explanation: The bloom factor value provided is outside the acceptable range.
• Solution: Check the bloom factor value and ensure it is within the typical range of 0.0 to 1.0.