ComfyUI Image Expand Nodes

Custom nodes for ComfyUI to expand images with noise for outpainting or inpainting purposes. This allows for seamless image extension in any direction.

Expansion Example

Merge Expansion Example

Features

• Expand Image: Add noise to any side of an image (top, bottom, left, right) to prepare for outpainting.
• Inside/Outside Modes: Choose between expanding the canvas (outside) or overwriting existing content (inside).
• Merge: Seamlessly stitch the original image with the newly generated content.

Nodes

1. Image Expand Option

A configuration node to define the expansion strategy.

• direction: Choose the direction to expand (top, bottom, left, right).
• mode:
  • outside: Increases the image canvas size.
  • inside: Maintains image size but overlays noise on the specified area.

2. Image Expand Noiser

Prepares the image for the generation process.

• Inputs:
  • image: Source image.
  • options: Configuration from Image Expand Option.
  • percentage: The ratio of expansion relative to the image size (default: 0.2).
• Outputs:
  • IMAGE: Image with noise added to the target area.
  • MASK: Mask corresponding to the noisy area (useful for inpainting).

3. Image Expand Merger

Merges the original image with the generated result.

• Inputs:
  • image1: The original source image.
  • image2: The generated image (output from KSampler/VAE Decode).
  • mask: The mask used for generation.
  • options: Configuration from Image Expand Option.
• Outputs:
  • IMAGE: The final combined image.

Installation

1. Navigate to your ComfyUI custom_nodes directory.
2. Clone this repository:

   git clone https://github.com/tuki0918/comfyui-image-expand-nodes.git
   

3. Restart ComfyUI.

Related Tools

image-noise-expander

• Expand Image with Noise and Crop + Mask

image-overlap-merger

• Automatically detect and merge overlapping regions of two images