ComfyUI-MachinePaintingNodes
Professional Image Editing & Adjustments, Curves, color grading, mask tools, and advanced utilities for your ComfyUI workflows
A comprehensive node suite for professional level image processing, color correction, and advanced workflow enhancement utilities.
(All current nodes.)
Installation
ComfyUI Manager (Recommended)
Search for "MachinePaintingNodes" in ComfyUI Manager and install.
Manual Installation
cd ComfyUI/custom_nodes
git clone https://github.com/machinepainting/ComfyUI-MachinePaintingNodes.git
Dependencies
pip install -r requirements.txt
Nodes (23 Total)
Color Adjustment
(example)
| Node | Description |
|---|---|
| Curves Adjust Pro | Interactive Photoshop-style curves with RGB/R/G/B channels, 17 presets, mask support, channel-mask support |
| Levels Adjust | Black point, white point, gamma, output levels |
| Auto Levels | Automatic levels correction |
| Selective Color Pro | CMYK adjustments for specific color ranges and fine tuned color adjustments (reds, yellows, greens, cyans, blues, magentas, whites, neutrals, blacks) |
| Brightness Contrast Adjust | Simple brightness and contrast controls with simple slider controls |
| Color Match Blend | Match colors from one image to another with multiple methods (statistical, histogram, reinhard), blend modes, and adjustments |
| Color Adjust Blend | Color match with blend modes, plus RGB color balance for Shadows, Mid-Range, and Highlights |
| LUT Apply | Apply .cube/.3dl LUT files for cinematic color grading (includes 5 bundled LUTs) |
(examples)
Mask and Background
| Node | Description |
|---|---|
| Remove Background Pro | Advanced AI-powered background removal with 8 rembg models, mask editing tools, multiple preview modes |
| Mask Editor | Stand alone Mask Tools. Refine masks with grow/shrink/blur/fill |
| Apply Mask | Composite image with mask and background options |
| Channel Mask Pro | Extract R/G/B/A channels as separate masks with levels/contrast adjustments and input mask support for advanced Channel Masking |
(examples)
Blending
| Node | Description |
|---|---|
| Image Blend Pro | Blend images with 15 blend modes (normal, overlay, multiply, screen, soft light, hard light, etc.) |
Analysis
| Node | Description |
|---|---|
| Histogram View | Display RGB/luminance histogram in-node for advanced image setting color display |
| Color Wheel View | Display vectorscope color distribution in-node for advanced image setting color display |
(example)
Utilities
| Node | Description |
|---|---|
| Boolean | Output a true/false value |
| Boolean Invert | Flip boolean value (true to false, false to true) for advanced workflow pipline and settings switching |
| Boolean Switch Value Output | Output different values based on boolean for advanced workflow pipline and settings switching |
| Boolean Input Value Switch | Route inputs based on boolean for advanced workflow pipline and settings switching |
| Boolean Master Switch | Control multiple booleans from one switch for controlling multiple switches with one master switch node |
| Seed Lock | Lock/unlock seed values with a toggle to lock the current seed vaule, opposed to the standard where the following run seed value is locked |
| Text Notes | Add comments and documentation to your workflow for organization |
| Show Text | Display and pass through text output from other nodes for debugging |
(example)
Features
Curves Adjust Pro
- Interactive curve editor with click-to-add, drag-to-move, shift-click-to-remove points
- Separate RGB, Red, Green, Blue channel curve editing
- 17 built-in presets (S-Curve Contrast, Fade, Cross Process, Cinematic, etc.)
- Visual display of all channel curves in RGB mode
- Mask support with invert option
- Spline interpolation for smooth curves
Color Match Blend
- 3 matching methods: statistical, histogram, reinhard
- 10 blend modes: normal, overlay, multiply, screen, soft light, hard light, color, luminosity, darken, lighten
- Separate luminance and color match controls
- Saturation adjustment
Color Adjust Blend
- Optional color reference input with LAB color matching
- Blend modes for color application
- RGB color balance with shadow/midtone/highlight zones
- Works standalone as simple color balance without reference
LUT Apply
- Supports .cube and .3dl LUT formats
- 5 bundled LUTs included (auto-installed to
ComfyUI/input/luts/):- Cinematic_Teal_Orange
- Warm_Tone
- Cool_Tone
- Vintage_Fade
- High_Contrast
- Intensity slider to blend effect
- Add your own LUTs to
ComfyUI/input/luts/
Remove Background Pro
- 8 AI models: u2net, u2netp, u2net_human_seg, u2net_cloth_seg, silueta, isnet-general-use, isnet-anime, sam
- Built-in mask refinement (grow/shrink, blur, threshold)
- Preview modes: masked, mask only, side-by-side, overlay
- Edge feathering for smooth composites
Channel Mask Pro
- Separates image into R, G, B, Alpha channel masks
- Levels adjustments (black point, white point, gamma)
- Contrast and brightness controls
- Input mask support with invert option
- B&W preview with R/G/B/L labels
Selective Color Pro
- Target specific colors: reds, yellows, greens, cyans, blues, magentas, whites, neutrals, blacks
- CMYK adjustment sliders (-100 to +100)
- Smooth RGB-based color detection for natural results
- Reset All button
- Mask support
Text Notes
- Multiline text area for workflow documentation
- Optional title field
- No inputs/outputs - purely organizational
Show Text
- Display text output from other nodes
- Pass-through output for chaining
- Console logging for debugging
Changelog
v2.0.2
- New Nodes: Text Notes, Show Text utility nodes
- Color Match Blend: Added blend modes (normal, overlay, multiply, screen, soft light, hard light, color, luminosity, darken, lighten)
- Color Adjust Blend: Reworked flow - color match → blend mode → RGB adjustments
- Selective Color Pro: Fixed smooth color detection for natural-looking adjustments
v2.0.1
Updated Node Settings, Resolved Display Issues, Fixed Several Node structures.
v2.0.0
Major Overhaul, Node Additions, and Improvements
- New Nodes: LUT Apply, Channel Mask Pro, Selective Color Pro, Boolean Invert
- Bundled LUTs: 5 color grading LUTs included with auto-install
- Curves Adjust Pro: Added mask support, improved curve display showing all channels in RGB mode
- Channel Mask Pro: Added input mask support, levels/contrast adjustments, improved B&W preview
- Unified Category: All nodes now appear under single "MachinePaintingNodes" folder
- Selective Color Pro: Added Reset All button
- Analysis Nodes: Improved auto-scaling for Histogram and Color Wheel views
- Code Cleanup: Removed deprecated nodes, standardized categories
v1.0.0
- Initial release with color adjustment, blending, and boolean utility nodes
License
MIT License - See LICENSE for details.
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Tags
comfyui comfyui-nodes custom-nodes color-grading color-correction curves levels lut lookup-table photoshop image-processing image-editing background-removal rembg masking mask-editor channel-mixer histogram vectorscope blend-modes compositing stable-diffusion ai-art generative-art film-emulation cinematic color-matching hsl cmyk selective-color boolean-logic workflow utilities