Scatter stamp / sticker shapes over a mask instead of mosaic. Built-in white (or black-on-white) presets can be tinted from a color picker; custom PNGs keep their own alpha. Detection and mask grow are left to SAM / Impact / Grow Mask.

Current release: 1.1.1 — Even Pack for regular layouts, plus live node previews.

Highlights

Result instead of mosaic

Hearts, scribble bars, stars, crosses, or your own sticker — same mask pipeline, no pixelation.

Stamp Load + color tint

Pick a built-in shape, tint it with the color picker, and set a base angle. The node preview rotates with the angle; the STAMP output stays unrotated so Stamp Censor can apply auto-rotate / jitter on top.

Custom image

Use Stamp Custom Load to drop or pick your own texture. The file is used as-is — no keying, no tint. White backgrounds stay white.

Custom stamps

Colorable templates go in the assets/ folder (do not name a file demo_scene.png). Stamp Load scans that folder and only accepts two tintable formats:

White on a transparent background
Black ink on white (black is kept, white is discarded)

Add or delete a file, then press R (Refresh Node Definitions) or reload the page. The filename (without extension) is the preset id in the dropdown.

Mask scatter with coverage / spacing

Connect image + mask + stamp. Each connected mask region gets its own long-axis heading (optional), random sizes, and oriented-box packing until target coverage. Tiny islands (SAM speckles) are skipped automatically. Stamps may overflow the mask. An in-node demo preview updates when the stamp is connected.

Even Pack

Turn on Even Pack for a regular layout instead of random samples. Slender mask regions are scanned along the long axis and sized to local width (1.0 fills that span). Squat / near-square regions size to the short side and pack in two dimensions. Coverage, size ratio, spacing, jitter, auto-rotate, and seed still apply.

Auto rotate

On: each mask region uses its long-axis heading, then adds the Stamp Load / Custom Load angle. Off: only that load angle is used. Stamps default to pointing up. Angle jitter is applied after this.

Install

cd ComfyUI/custom_nodes
git clone https://github.com/tsukino4a/ComfyUI-4A-StampCensor.git ComfyUI-4A-StampCensor

Or search 4A Stamp Censor in ComfyUI-Manager. Restart ComfyUI after install.

Examples in example_workflows/. Pick your own image in Load Image before running. Seed is randomized each queue.

SAM3 · 01_SAM3_StampCensor.json

Impact Pack YOLO NSFW · 02_ImpactPack_NSFW_StampCensor.json

Quick start

Add Stamp Load and Stamp Censor from 4A/StampCensor.
Connect stamp → stamp. Feed image and a white-on-black mask (YOLO / SAM / Impact / Grow Mask).
Queue once. Tweak coverage, size ratio, spacing, and auto-rotate; the bottom demo preview follows when a Stamp Load is connected.
Optional: use Stamp Custom Load instead of Stamp Load if you have your own PNG.

This plugin does not detect NSFW or grow masks. Wire those nodes yourself.

Nodes

| Node | Role | |------|------| | Stamp Load | Built-in preset + color + angle → STAMP | | Stamp Custom Load | Drop / pick a PNG → STAMP (no tint) | | Stamp Censor | Scatter the connected stamp over mask; optional seed input |

Stamp assets

| Path | Purpose | |------|---------| | assets/ | Built-in presets. Every .png except demo_scene.png is scanned on startup | | assets/demo_scene.png | Internal demo plate only — never listed as a stamp |

Format rules and refresh steps are under Custom stamps above. Shipped shapes (order is fixed; extra files sort after them): heart_solid, heart_standard, heart_wobbly_a, heart_soft, bar_h_scribble, bar_h_thick, star_wobbly, circle_scribble, cross_x.

Dependencies

Pillow and NumPy are provided by ComfyUI; this node adds no extra pip packages

License

This project is released under the MIT License.