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.opencode/skills/media-processing/references/rmbg-background-removal.md

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+# RMBG - Background Removal CLI
+
+Local AI-powered background removal tool. Repository: https://github.com/mrgoonie/rmbg
+
+## Installation
+
+```bash
+npm install -g rmbg-cli
+# or
+pnpm install -g rmbg-cli
+```
+
+## Usage
+
+```bash
+# Basic usage (uses modnet model)
+rmbg input.jpg
+
+# Specify output path
+rmbg input.jpg -o output.png
+
+# Choose model
+rmbg input.jpg -m briaai -o high-quality.png
+
+# Set max resolution
+rmbg image.jpg -r 4096 -o image-4k.png
+```
+
+## CLI Options
+
+- `-o, --output <path>` - Output path (default: `input-no-bg.png`)
+- `-m, --model <model>` - Model name (default: `modnet`)
+- `-r, --max-resolution <n>` - Max resolution in pixels (default: `2048`)
+
+## Available Models
+
+| Model | Size | Speed | Quality | Use Case |
+|-------|------|-------|---------|----------|
+| `u2netp` | 4.5MB | ⚡⚡⚡ Fastest | Fair | Batch processing |
+| `modnet` | 25MB | ⚡⚡ Fast | Good | Default, balanced |
+| `briaai` | 44MB | ⚡ Slower | Excellent | High-quality |
+| `isnet-anime` | 168MB | ⚡ Slower | Specialized | Anime/manga |
+| `silueta` | 43MB | ⚡⚡⚡ Fast | Good | Portraits |
+| `u2net-cloth` | 170MB | ⚡ Slower | Specialized | Fashion/clothing |
+
+## Examples
+
+```bash
+# Fast processing
+rmbg photo.jpg -m u2netp -o fast-result.png
+
+# High quality output
+rmbg photo.jpg -m briaai -r 4096 -o hq-result.png
+
+# Batch processing
+for img in *.jpg; do
+  rmbg "$img" -m u2netp -o "output/${img%.jpg}.png"
+done
+```
+
+## Notes
+
+- Models download automatically on first use (~4-170MB depending on model)
+- Cache location: `macOS: /var/folders/.../T/rmbg-cache/` | `Linux: /tmp/rmbg-cache/` | `Windows: %TEMP%\rmbg-cache\`
+- Supported formats: JPEG, PNG, WebP
+- Max file size: 50MB