4k Identitypreserving Photo Upscalers

This prompt is built for 4K photo upscaling with strict identity preservation using a single reference image. It enhances clarity and realism while preventing facial distortion, beautification, or stylization. If the input image is black and white, natural and realistic color is automatically restored. Color images retain their original palette. A single editable bracket allows controlled changes such as age, clothing, lighting, or background while maintaining photographic authenticity.