Portrait background removal is the most demanding use case due to hair strand detection. Tips for best results: shoot in front of a contrasting solid-color wall (not patterned wallpapers), good even lighting avoids dark shadows that confuse the AI, pull hair back for cleaner edges if precision matters, avoid wearing clothing that matches the background. Our AI uses a multi-pass approach: first segmenting the overall figure, then refining hair/edges with a dedicated matting model for professional results.