Painterly

Stroke-based image renderer · Hertzmann 1998

Input Image

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Drop video here
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Output FPS 24

Output: WebM (VP8) if WebCodecs available, otherwise ZIP of PNG frames.

Select images…

Chrome/Edge: choose an output folder. Other browsers: download as ZIP.

Radii (coarse → fine, comma-separated)

Max stroke length 16

Min stroke length 4

Curvature 1.0

Error threshold T 50

Grid factor 1.0

Opacity 0.9

Seed

Underpainting

Fast preview (downscale to 400px, then upscale)

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White pixels = paint, black pixels = transparent.
Brush alpha channel is used if present.

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