{"technique":"low-contrast","description":"Apply low-contrast text to images that AI can detect but humans cannot easily see","method":"POST","parameters":{"image":{"type":"string (base64)","required":true,"description":"Base64 encoded image data"},"text":{"type":"string","required":true,"description":"Text to overlay on image"},"contrastRatio":{"type":"number","required":false,"default":1.5,"range":"1.0 - 3.0","description":"WCAG contrast ratio (lower = less visible)"},"fontSize":{"type":"number","required":false,"default":24,"description":"Font size in pixels"},"fontFamily":{"type":"string","required":false,"default":"Arial","description":"Font family name"},"x":{"type":"number","required":false,"default":50,"description":"X position of text"},"y":{"type":"number","required":false,"default":50,"description":"Y position of text"}},"example":{"curl":"curl -X POST https://yoursite.com/api/transform/low-contrast \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"image\": \"data:image/png;base64,...\", \"text\": \"Hidden text\", \"contrastRatio\": 1.5}'"}}