ComfyUI Image Tiled Nodes

Custom nodes for ComfyUI that allow splitting large images into overlapping tiles for processing (e.g., Inpainting/Upscaling) and merging them back seamlessly with feathering blending.

Image Splitting Example

Merging Split Images Example (Upscale)

Features

• Split Large Images: Split a large image into smaller tiles suitable for diffusion models.
• Seamless Blending: Automatically generates feathered masks for tile edges to ensure seamless merging after processing.
• Batch Processing: Outputs tiles as a batch, allowing standard ComfyUI nodes (VAE Encode, KSampler, etc.) to process all tiles at once without complex loop structures.
• Flexible Configuration: Customizable tile size, overlap amount, and feathering ratio.

Installation

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

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

3. Restart ComfyUI.

Nodes

Tiled Image Splitter

Splits an input image into tiles.

• Inputs:
  • image: The source image to split.
  • tile_width / tile_height: The size of each tile.
  • overlap: The size of the overlapping area between tiles (in pixels).
  • feather_ratio: Ratio of the overlap area to use for feathering/blending (0.0 - 0.5).
• Outputs:
  • tiles: A batch of cropped images.
  • masks: A batch of masks corresponding to the tiles. Edges are feathered for seamless blending.
  • tile_info: Metadata required by the Merger node to reconstruct the image.

Tiled Image Merger

Merges the processed tiles back into a single large image.

• Inputs:
  • images: A batch of processed tile images (usually from VAE Decode).
  • tile_info: The metadata output from the Tiled Image Splitter node.
• Outputs:
  • image: The final merged image.

Workflow Example

1. Load Image -> Connect to Tiled Image Splitter (image).
2. Tiled Image Splitter (tiles) -> VAE Encode -> KSampler ...
3. Tiled Image Splitter (masks) -> Set Latent Noise Mask (for Inpainting).
4. Tiled Image Splitter (tile_info) -> Connect to Tiled Image Merger (tile_info).
5. KSampler -> VAE Decode -> Connect to Tiled Image Merger (images).
6. Tiled Image Merger (image) -> Save Image.

This setup processes all tiles in a single batch run. Ensure your VRAM is sufficient for the number of tiles generated.

Warning

There is a problem with increased redness.