Blue Halftone City Archive
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Blue Halftone City Archive

Turn each travel photo into a separate 3:4 top-and-bottom comparison city archive page: keep the real photograph on top, and rebuild the same location in monochrome blue-ink halftone below.

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Prompt

Please turn each travel photo I upload into its own separate
「BLUE HALFTONE CITY ARCHIVE|蓝墨网点城市档案」.

Output each photo individually, with no multi-image collage.
The overall layout uses a vertical 3:4 top-and-bottom comparison composition.

The top portion occupies about 48%–50% of the frame and preserves the high-fidelity original travel photograph.

The bottom portion occupies about 50%–52% and rebuilds the same location as a complete
monochrome blue-ink halftone city observation archive page.

The upper and lower areas use a clean, straight, restrained horizontal boundary.
They must not fade, feather, or bleed into each other.

The top half must faithfully preserve the original photograph.

Accurately maintain architectural identity, number of landmarks, domes, towers, bridges,
rooftops, roads, shorelines, trees, foreground anchors, viewing angle,
perspective relationships, real materials, natural light and shadow, and the original color mood.

Apply only slight premium travel-publication color balancing,
and add extremely thin film grain.

Do not repaint the photo. Do not move, mirror, replace, enlarge, or shrink landmarks.
Do not reshape buildings, change road directions, or add non-existent towers or urban structures.
The top half must still clearly read as a real photographic work.

The bottom half uses warm beige, ivory, or light oat-toned aged paper,
with subtle fibers, light grain, and uneven natural texture.

The redrawn area may use only one cool blue ink:

- Ultramarine
- Prussian blue
- Deep blue-gray

Choose one of these based on the mood of the original photo.
The entire bottom half must not include a second colored ink.

First understand the visual information that defines the location's identity:

- The main architectural silhouettes
- The height relationships between landmarks
- The rhythm of domes, towers, or rooflines
- The direction of roads, bridges, or shorelines
- Foreground trees, street lamps, boats, or railings
- Clouds, mist, backlight, and atmospheric perspective

Remove unrelated vehicles, tourists, advertisements, dense window panes,
cluttered facilities, and any details that do not help identify the location.

Do not trace the full framing of the upper photo proportionally.

Rearrange the bottom half's subject scale, cropping, and visual focus:
the architecture or city body should occupy about 55%–75% of the redrawn area,
which may be moderately enlarged and cropped from the lower edge or sides.

Reserve about 20%–30% of structured paper space on the left or upper left
for a few archive titles and fields.

The bottom of the city, foreground anchors, roads, tree clusters, and building bases
use heavier blue ink and dense halftone dots.

Mid-level buildings, rooftops, and facades use medium-density dots,
using dot size, density, and direction to build volume and distance.

Building upper edges, domes, spires, sculptures, mist, clouds, and soft light
gradually shift into looser halftone grain and naturally fade into the unprinted paper.

Must maintain:

The bottom is the most solid,
the middle structure is clear,
the top gradually dissolves point by point.

The dots must truly help shape architectural volume, spatial distance,
mist layers, and light, rather than acting as a uniform grain filter over the photo.

Real plate-making and screen-printing traces are allowed:

- Local ink starvation
- Uneven dot density
- Coarse-grain halftone
- Scratch-like paper white
- Eraser-like ink removal
- Broken plate edges
- Paper fibers showing through
- A few scattered ink specks
- Local ink overlap and dry areas

The main building outlines, domes, towers, and location identity must remain clear,
and must not lose recognizability because the grain dissolves.

In the left blank area, add a title of 2–3 English words,
plus 3–5 lines of short, accurate archive fields.

Before generating, explicitly replace the following:

TITLE: “[地点或观察主题]”
FIELD: “[FIELD 01]”
LOCATION: “[可确认的真实地点]”
SUBJECT: “[照片中的主要建筑或结构]”
LIGHT: “[可确认的天气或光线]”

The title uses a modern narrow sans-serif typeface with open letter spacing,
and the fields use small monospaced or narrow sans-serif type.

All text uses the same blue ink as the image.
Slight ink starvation, paper tooth, and incomplete print edges are allowed,
so the text reads like native plate-made fields on an archive page.

Do not add unverifiable dates, coordinates, years, citations, or stories.
Do not generate author names, signatures, social accounts, logos, URLs, or watermarks.

The overall mood should resemble a page from an international architecture publication,
an urban observation handbook, an old building archive, or an independent travel magazine:

Calm, restrained, rational, quiet, and collectible,
while still retaining real printed grain, defects, and handmade imperfections.

Avoid: ordinary blue photo filter, uniform halftone overlay,
generic skyline, altered landmark, invented architecture,
tiny bottom-only city residue, watercolor wash,
cyanotype photography, multicolor risograph,
charcoal smudge, smooth digital gradient,
full lower-panel ink coverage, meaningless center line,
decorative grid, fake quotation, fake coordinates,
fake date, author name, signature, logo, watermark,
gibberish, blurry split boundary.

The most important rule:

This is not about turning the photo blue;
it is about recreating the same location as a complete monochrome city archive page.

The building base must be clear, solid, and recognizable,
while domes, spires, clouds, mist, and light gradually turn into dots
and disappear into the warm aged paper.

How to use

Usage tip: Upload a travel photo containing recognizable buildings or urban structures, and first confirm the location, subject, and lighting fields. Process one photo at a time, focusing on checking landmark identity, text accuracy, and blue halftone layering.

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