Night Photo Enhancement

ROLE

Act as a senior professional night photographer, cinematic colorist, RAW photo editor and high-end photo retoucher. Perform a controlled but clearly visible professional enhancement of the uploaded nighttime photograph.

Treat the source image as the ground truth for all people, objects, architecture, composition and scene structure. Preserve the photograph itself while substantially improving its nighttime color, contrast, lighting atmosphere and visual impact.

EDIT

Transform the photograph into a rich, dark, vibrant and professionally graded nighttime image.

The enhancement must create an immediately noticeable visual transformation.

Make the overall nighttime environment slightly darker, deeper and moodier. Deepen blacks and shadow regions while preserving enough detail for a natural photographic result.

At the same time, make EXISTING artificial lights noticeably brighter, richer and more luminous so they stand strongly against the darker environment.

Increase the richness and separation of naturally existing nighttime colors. Deepen blues and cyan tones, enrich reds and oranges, strengthen warm golden/yellow illumination and create a richer deep-blue or navy nighttime atmosphere where appropriate.

Enhance colorful reflections produced by existing lights on water, pavement, glass, vehicles, metal and other naturally reflective surfaces.

Add subtle, realistic photographic glow and bloom immediately around bright existing light sources.

Increase overall contrast and tonal depth so illuminated areas appear vivid and luminous while surrounding shadows remain deep, clean and atmospheric.

The result should look like the SAME photograph after an expert professional nighttime color grade—not merely a clearer or sharper version of the source.

TARGET VISUAL STYLE

Aim for a premium nighttime photography appearance characterized by:

* deep, rich blacks;
* darker atmospheric shadows;
* deep navy and blue nighttime tones;
* vivid existing artificial lights;
* richer golden and amber highlights;
* stronger reds, blues and cyans where those colors already exist;
* luminous windows, streetlights and city lights;
* stronger colorful reflections;
* subtle highlight glow and bloom;
* high but controlled contrast;
* strong separation between darkness and illumination;
* rich tonal depth;
* clean, polished low-light detail.

The photograph should feel darker overall while its lights and colors feel significantly more alive.

DARKNESS & SHADOWS

Do NOT prioritize aggressive shadow recovery.

Darkness is an intentional and important part of this enhancement.

* Slightly darken the overall environment where appropriate.
* Deepen weak or washed-out blacks.
* Make dark backgrounds richer and more atmospheric.
* Preserve naturally dark areas instead of trying to reveal everything inside them.
* Maintain enough shadow information to avoid unnatural clipping.
* Keep important subjects readable where necessary.

Do NOT simply lower global exposure.

Create selective darkness so illuminated elements remain visible and gain stronger contrast against their surroundings.

Do NOT turn blacks gray by excessively lifting shadows.

LIGHT ENHANCEMENT

Make EXISTING light sources substantially more visually prominent.

Enhance existing:

* building lights;
* illuminated windows;
* streetlights;
* lamps;
* headlights;
* taillights;
* signs;
* screens;
* decorative lights;
* other visible practical illumination.

Increase their perceived brightness, color richness and luminosity without changing their locations or designs.

Bright lights should contrast strongly against the darker environment.

Maintain detail and color inside illuminated regions where possible instead of turning them into featureless white areas.

Create smooth highlight roll-off around intense lights.

Allow a restrained amount of realistic bloom and halation immediately surrounding strong light sources.

Do NOT add new light sources.

COLOR ENHANCEMENT

Color enhancement must be clearly visible.

Increase the richness of colors already present in the photograph.

Where naturally present:

* make blues deeper and cleaner;
* make cyan illumination richer;
* make reds more vivid;
* make oranges warmer;
* make yellow lights richer and more golden;
* strengthen subtle magenta or purple illumination;
* create richer separation between warm and cool lights.

Favor a deep navy-blue nighttime atmosphere in naturally cool dark regions rather than flat gray or washed-out blacks.

Do NOT recolor unrelated objects.

Do NOT apply one uniform color tint across the entire photograph.

Do NOT force colors into areas where they did not exist.

The enhanced color must appear to originate naturally from the scene's existing lighting.

REFLECTIONS & LIGHT SPILL

Where reflections from existing lights are already physically plausible, enhance their richness and visibility.

On existing reflective surfaces such as:

* water;
* wet pavement;
* glass;
* polished vehicles;
* metal;
* glossy floors;

allow existing blue, cyan, red, orange and yellow lights to produce richer and more attractive reflections.

Slightly strengthen realistic color spill from nearby existing light sources onto surrounding surfaces.

Do NOT make dry surfaces wet.

Do NOT invent reflections.

Do NOT add colored illumination unsupported by an existing light source.

CONTRAST & DEPTH

Increase contrast noticeably.

Create stronger separation between:

BRIGHT LIGHTS → ILLUMINATED SURFACES → MIDTONES → DARK SHADOWS → DEEP BLACKS.

Bright areas should appear luminous.

Dark areas should appear deep and atmospheric.

Midtones should maintain enough information to preserve photographic depth.

Use selective local contrast to give buildings, subjects and environmental structures greater dimensionality.

Avoid flat HDR-style tonal compression.

GLOW & ATMOSPHERE

Add subtle optical character around intense EXISTING lights.

Use restrained:

* bloom;
* halation;
* soft luminous glow;
* environmental light spill.

These effects should make lights feel brighter and richer without obscuring the photograph.

Glow must remain localized around actual light sources.

Do NOT add fake lens flares.

Do NOT add unsupported light rays or beams.

Do NOT create large artificial halos.

DETAIL & CLEANUP

After completing the lighting and color transformation:

* reduce distracting low-light noise;
* reduce chroma speckling;
* improve fine-detail definition;
* apply restrained photographic sharpening;
* maintain realistic textures;
* preserve natural low-light grain where appropriate.

IMPORTANT:

Sharpness, denoising and resolution enhancement are SECONDARY.

They must NOT become the primary visible difference.

The result should still look dramatically improved when viewed small enough that increased sharpness is difficult to notice.

STRICT PRESERVATION

Preserve exactly:

* all people;
* facial identity;
* facial features;
* expressions;
* body proportions;
* poses;
* clothing;
* accessories;
* objects;
* vehicles;
* architecture;
* buildings;
* environmental layout;
* signs;
* text;
* background;
* composition;
* crop;
* framing;
* camera position;
* perspective;
* depth relationships;
* depth of field;
* location of every existing light source.

Do NOT add, remove, replace or redesign scene content.

Do NOT change architecture.

Do NOT replace the background.

Do NOT replace the sky.

Do NOT add stars, moonlight, rain, fog or environmental elements that were absent from the source.

Do NOT modify readable signs, logos or text.

Do NOT alter identity or anatomy.

ARTIFACT PREVENTION

Avoid:

* enhancement consisting mainly of sharpening;
* enhancement consisting mainly of denoising;
* simple upscaling;
* barely noticeable color changes;
* brightening the entire photograph;
* excessive shadow recovery;
* gray or washed-out blacks;
* completely crushed shadow detail;
* daylight-like exposure;
* fake HDR;
* flat lighting;
* excessive saturation;
* radioactive neon colors;
* arbitrary recoloring;
* excessive teal/orange grading;
* giant light halos;
* excessive bloom;
* fake lens flares;
* invented lights;
* invented reflections;
* artificial spotlights;
* distorted architecture;
* altered faces;
* corrupted text;
* duplicated objects;
* obvious AI-generated artifacts.

MANDATORY VISUAL TRANSFORMATION

The final image MUST have a clearly visible before/after difference.

Compared with the source, the final photograph should be:

DARKER in non-illuminated environmental areas.

DEEPER in blacks and shadows.

BRIGHTER around existing practical lights.

MORE VIBRANT in naturally existing nighttime colors.

BLUER AND RICHER in appropriate nighttime atmospheric areas.

WARMER AND MORE GOLDEN around existing warm lights.

MORE COLORFUL in existing reflections.

STRONGER in contrast.

MORE LUMINOUS around illuminated elements.

MORE ATMOSPHERIC and visually dramatic.

The desired visual relationship is:

DEEP DARK ENVIRONMENT + BRIGHT COLORFUL LIGHTS + RICH REFLECTIONS + STRONG CONTRAST + SUBTLE GLOW.

This lighting and color transformation is the PRIMARY purpose of the edit.

If the output merely appears clearer, sharper, cleaner or higher resolution while retaining approximately the same brightness, colors and contrast as the source, the edit has FAILED.

If necessary, strengthen the darkening of environmental areas, deepen the nighttime blue tones, increase existing light luminosity, increase color richness, strengthen reflections and increase tonal contrast until the transformation is immediately noticeable.

QUALITY CONTROL

Before finalizing, compare the result directly against the original.

Confirm that:

1. The nighttime environment is visibly darker and richer.
2. Blacks and shadows have greater depth.
3. Existing lights are noticeably brighter and more luminous.
4. Blues and nighttime tones are noticeably deeper and richer.
5. Existing warm lights have stronger golden/amber character.
6. Existing colorful reflections are richer and