Preprocessor_ContactSheet
A ComfyUI extension with 1 custom node.
Preprocessor Contact Sheet for ComfyUI
A custom node that runs all ControlNet preprocessors on your image at once and displays the results in a single contact sheet grid. Then pick the one you like and inject its workflow directly into your canvas.
Features
- Auto-discovery: detects which preprocessors from
comfyui_controlnet_auxare installed on your system - Batch execution: runs all available preprocessors in sequence on the same image
- Contact sheet output: composites all results into a labeled grid with color-coded categories
- Visual grid picker (🎯 Pick from Grid): after running, opens an overlay with real thumbnails — click one to inject its workflow
- AIO or Dedicated node: choose between the generic AIO Preprocessor (dropdown) or the dedicated node with full parameter control
- Click-to-place: after choosing, click anywhere on the canvas to position the workflow — no overlapping
- Detailed report: string output listing successes, failures, missing nodes, and skipped preprocessors
Requirements
- ComfyUI
- ComfyUI's ControlNet Auxiliary Preprocessors (
comfyui_controlnet_aux)
Installation
Via ComfyUI Manager
Search for Preprocessor Contact Sheet in the ComfyUI Manager and install.
Manual
cd ComfyUI/custom_nodes
git clone https://github.com/YOUR_USERNAME/ComfyUI-ContactSheet.git
Restart ComfyUI.
Usage
- Add the Preprocessor Contact Sheet node to your workflow
- Connect an image and press Queue Prompt
- View the contact sheet with all preprocessor results
- Click 🎯 Pick from Grid to open the visual picker
- Click a thumbnail → choose AIO or Dedicated (or Both)
- Click on the canvas to place the workflow
Parameters
| Parameter | Description |
|---|---|
| resolution | Resolution passed to each preprocessor (512 for SD1.5, 1024 for SDXL) |
| columns | Number of columns in the grid |
| cell_width | Width of each cell in pixels (height follows aspect ratio) |
| border | Spacing between cells |
| font_size | Label text size |
| show_labels | Show/hide name + category labels |
| show_original | Include original image as first cell |
| title | Title text at the top of the grid |
| skip_preprocessors | Comma-separated list of preprocessor names to skip |
License
MIT