Промт для бережной реставрации портрета без изменения черт лица

Perform a non-generative technical restoration of this specific photograph. Your sole task is to clean and sharpen the existing pixels without changing the identity, facial features, or physical appearance of the people. Strictly preserve the original faces as they are; do not use "face restoration" or "face enhancement" models that replace or reconstruct facial features. The people must remain 100% identical to the original image.

Eliminate technical defects: remove the vertical scratches, white dust specks, and chemical staining on the left and bottom edges. Fix the overexposed bright spots in the snow to reveal texture. Maintain the original black and white monochromatic palette with no color, sepia, or tint added.

Apply uniform sharpening to the entire composition. Enhance the detail of the birch tree bark patterns, the textures of the snow and footprints, and the fabric of the clothing (the wool of the ushanka, the uniform weave, and the fur collar). Ensure the background forest is as crisp and detailed as the foreground.

Every person, object, and expression must remain exactly as captured in the original photo. Do not smooth skin, do not change facial proportions, and do not modernize the appearance. The final result must look like a clean, high-resolution original scan of the same subjects, with no identity changes. Preserve the exact aspect ratio and composition. Document-style pixel cleanup only.

ANTI-BIAS ALERT: You naturally focus restoration/colorization on FACES while leaving background, clothing, and foreground under-processed. This is the #1 quality failure. Consciously counteract this.

MANDATORY UNIFORM QUALITY CHECK:
- Background sharpness = Face sharpness (NOT less)
- Clothing detail = Face detail (fabric weave, buttons fully visible)
- Foreground objects = Faces (flowers, grass, objects NOT blurry)
- Edges/corners = Center of image (NOT softer or less restored)
Any area less sharp or colorized than faces is a FAILURE — redo that area.

ABSOLUTE RULES — NEVER VIOLATE:
- QUALITY + REPAIR MODE: enhance technical quality (remove noise/grain, apply uniform sharpening, improve dynamic range) uniformly across the ENTIRE image, AND repair physical damage. The goal is the same photo at maximum possible quality — as if shot with a modern camera
- CONTENT LOCK: do NOT change people, objects, composition, style, or era. Same scene, same identity — just technically better. Sharper, cleaner, noise-free everywhere
- DO NOT recreate, reimagine, or regenerate any part of the scene — work only with what is already in the photo
- DO NOT add, invent, or hallucinate any part of the image that is not in the original
- FACE RECONSTRUCTION FORBIDDEN: Do NOT rebuild, reconstruct, or regenerate any face. Ensure no artificially generated face replaces any original face in the photo. Pixel-level repair only — remove damage that covers a face, but never reconstruct the face itself
- DO NOT change, replace, or alter any person's face, body, or identity. 100% original subject identity and facial features must be preserved
- DO NOT change facial expression — mouth shape, lip curve, and overall expression must be IDENTICAL to the original
- DO NOT change eye gaze direction — eyes must look in the exact same direction as in the original photo
- SKIN TEXTURE: Apply frequency-separation logic — remove temporary surface damage (chemical stains, scratches, foxing) but strictly preserve all underlying skin texture: pores, fine lines, wrinkles, natural imperfections. Do NOT smooth the skin to a plastic finish
- INTENSITY: Apply strong, professional-grade quality enhancement uniformly. The goal is a noticeably better, sharper, cleaner result — not a barely-touched version of the original
- DO NOT add or remove any person or object
- DO NOT modernize clothing, hairstyles, or any visual elements. Preserve the original era, style, and visual aesthetic of the photo
- FILM GRAIN / NOISE = DEFECTS: Film grain, sensor noise, and age-related softness are technical defects to ELIMINATE — they are NOT authentic character to preserve. Remove them aggressively across the ENTIRE image
- ASPECT RATIO CRITICAL: Output must have the EXACT same aspect ratio as the input. DO NOT crop, add borders, expand canvas, or shift composition. Wrong aspect ratio = critical failure
- CANVAS SIZE: Output must have EXACTLY the same canvas dimensions as the input. DO NOT expand, add borders, or fill in areas outside the original photo boundaries. If the photo has torn/missing edges — keep them as-is or darken, but NEVER extend the canvas
- SHARPNESS: Every pixel of the output must be crisp and sharp. NO softness, NO blur, NO smoothing anywhere. Blurry output is a critical failure
- SKIN COLOR: Eastern European skin = warm-neutral to cool-neutral, medium tone. NEVER red or orange. NEVER ghostly pale or washed-out. NEVER airbrushed or plastic. DO NOT add acne, spots or marks not in the original
- COLOR SATURATION: Keep overall saturation MODERATE — natural analog film look. NOT vivid digital. NOT pale or desaturated`
- CRITICAL: Preserve original tonal character EXACTLY — black and white photos MUST stay black and white. Sepia photos MUST stay sepia. DO NOT add ANY color whatsoever.
- OUTPUT MUST BE GRAYSCALE if the input is grayscale — no warm tones, no blue tints, no color cast of any kind
- Apply uniform sharpness to the ENTIRE image — background and foreground equally. NO background blur
- DO NOT smooth, airbrush, or beautify faces — preserve natural skin texture: pores, fine lines, wrinkles, natural imperfections — exactly as in the original
- "Keep result photorealistic" — avoid any artistic, painted, or digitally enhanced look