Kinetic Line Structure Poster

Kinetic Line Structure Poster

Use the system imagegen skill and image-generation tool. Treat every uploaded photograph as the edit source. Make one subject emerge from controlled line density while geometric axes discipline the surrounding motion.

Output contract

• Produce one independent raster poster for every uploaded photo. Never combine photos into a collage, contact sheet, comparison layout, diptych, or shared canvas.
• Use a 3:4 portrait canvas with one exact horizontal 50/50 division. Keep truthful photography in the upper half and the kinetic-line experiment in the lower half. Do not let either medium invade the other.
• Preserve immediate correspondence through the hero's silhouette, posture, proportion, direction, relationship, and defining structural edges.
• Use one primary line color, a clean light ground, black/gray microtype, one visual focus, and large blank space.
• Render visible wording in English unless the user explicitly requests another language.
• Return every poster as a separate image. Keep user-facing commentary to one short status sentence only when necessary.

Preserve the photographic upper half

Keep the source recognizably photographic. Preserve subject identity and count, anatomy or construction, proportions, pose, silhouette, direction, spatial relationships, real materials, natural light, and the original color atmosphere.

Apply only restrained art-magazine, independent-publication, or exhibition-photography color correction. Do not redraw, vectorize, beautify, materially relight, or apply line fields, typography, grids, or graphic overlays to this region.

Crop deliberately for the upper half. When more area is needed, extend only plausible sky, ground, wall, water, foliage, or environmental background. Never stretch, warp, mirror, duplicate, or redesign the subject.

Extract the line-field logic

Before prompting, privately identify:

1. the one hero subject or inseparable relationship carrying recognition;
2. its decisive outer contour, posture, proportion, direction, openings, and center of gravity;
3. three to six identity edges or internal axes that need the highest line coherence;
4. the source action, emotion, tension, material flow, or implied movement;
5. where the field should be densest, where it should open, and in which directions it should disperse;
6. the source's most lively and representative hue—not its largest average color;
7. the horizontal, vertical, diagonal, arc, tangent, or implicit-grid geometry that can organize the field;
8. one extremely short English title and only the few microtext elements that add order or meaning.

Do not expose this analysis or repeat the user's design brief.

Make a stable silhouette from unstable lines

Construct the hero with high-density repeated strokes, offset contour echoes, short loops, interrupted trajectories, local returns, and slight controlled tremor.

Keep the outer recognition boundary coherent. Use denser, darker, thicker, or more aligned lines along decisive silhouette segments and identity features. Inside the hero, allow paths to overlap, drift, reverse, loop, split, and reconnect so the form feels unstable and alive.

Use white gaps and sparse passages for openings, light, joints, or negative space. Let some internal strokes cross contour boundaries only where the source direction, action, or material supports it.

Avoid a filled silhouette, uniform hatching, one continuous spiral, hairball scribbles, repeated identical contours, smooth vector waves, realistic shading, crosshatched engraving, or line noise with no relation to structure.

Decay density into the surrounding field

Extend the hero's line language outward with thinner, lighter, shorter, and more widely spaced marks. Let line density, continuity, overlap, and pressure decline with distance from the core.

Use a clear transition:

1. high-density core forming the hero;
2. medium-density transition revealing movement or force;
3. low-density fragments and trajectories;
4. complete disappearance into blank paper.

The outer field may follow one or two related source directions, but it must remain subordinate to the hero. Use density change instead of blur or opacity gradient.

Avoid a uniform halo, full-page line texture, random radial burst, particle effect, digital motion blur, airbrush fade, and equal density around every side.

Impose rational geometry

Choose a limited organizing set from:

• a horizontal baseline or horizon;
• a vertical structural or gravitational axis;
• one diagonal force or counterforce;
• a circle or arc derived from a source curve;
• a tangent touching a decisive contour;
• a sparse implicit grid controlling placement and type.

Every geometric line must correspond to the hero's structure, movement, environment, or composition. Use it to align, cut, measure, redirect, or contain the free line field.

Keep rational lines thinner, straighter, calmer, and more widely spaced than the hero strokes. Let one or two pass through the line mass, but maintain one visual focus.

Do not add a technical interface, coordinate grid, crosshair, data visualization, blueprint overlay, scanner aesthetic, cyberpunk HUD, decorative geometry, or many unrelated axes.

Compose density against blank paper

Place the hero according to its direction and center of gravity. It may be offset, cropped, extended along an axis, or held near one geometric edge. Preserve a large ratio of clean light ground.

Build one reading path from quiet paper through a rational guide into the dense hero and back through dispersing marks. Use scale, asymmetry, line concentration, and empty space to create tension.

Avoid mechanical centering, many equal line clusters, complex background, multiple subjects, decorative borders, evenly distributed marks, and a full lower-half texture.

Present the result as a flat experimental print. Do not add a wall, frame, desk, book mockup, product card, gallery room, or commercial campaign setting.

Select one clean line color

Choose the upper photograph's most spirited, recognizable, and identity-bearing hue. Gently purify, brighten, and correct it so it prints cleanly and feels modern.

Use that hue for nearly all expressive lines. Create darker and lighter appearance through overlap, density, line width, and ink pressure—not by adding multiple color families. Use black or dark gray only for typography and very limited structural information.

Choose white, ivory, very pale gray, or a light source-compatible paper ground. Keep the result clear, bright, and alive.

Avoid default blue, fixed monochrome schemes, muddy desaturation, dirty aging, multiple line colors, rainbow overlap, neon glow, gradient, metallic ink, and flat uniform digital saturation.

Integrate experimental English microtype

Derive one extremely short English title from the source's emotion, action, time, state, or metaphor. Add a few supported elements: a number, status word, scale mark, direction, observation note, or a brief original reflective line.

Do not use an attributed quotation unless the user provides it. Do not invent dates, times, coordinates, measurements, or archive facts. Numbers may appear only as clearly compositional notation when not factual.

Arrange type along a geometric axis, hero contour, tangent, or line-field boundary. It may run horizontally, vertically, rotate, open its tracking, enter the field, or be lightly crossed by strokes while remaining legible.

Use very small size, fine weight, broad tracking, and exact alignment. Let rational typography counterbalance the agitation of the line field. Avoid a commercial headline, dense copy, UI labels, fake data panels, logos, brands, signatures, pseudo-language, or watermarks.

Compile the image-edit prompt

Write one source-specific production prompt per input photo containing:

1. one independent 3:4 portrait output and the exact 50% photography / 50% kinetic-line split;
2. the upper-half preservation invariants, restrained color correction, crop, and any safe background extension;
3. the lower hero, relationship, silhouette, posture, proportion, direction, center of gravity, and three to six identity edges/axes;
4. the exact repeated strokes, offset contours, loops, returns, breaks, tremor, internal drift, white gaps, and contour coherence;
5. the high/medium/low/blank density zones, dispersal direction, mark thinning, shortening, spacing, and disappearance;
6. the exact source-backed baseline, vertical, diagonal, arc, tangent, or grid set and each one's organizing function;
7. the hero placement, crop, one visual focus, blank-space ratio, entry, dense hold, dispersion, and quiet exit;
8. the exact single source-derived line hue, light paper, black/gray type, and density-based tonal hierarchy;
9. the exact English title and microtext with factual support and axis-, contour-, tangent-, field-, rotation-, or crossing-aware placement;
10. hard exclusions: no multi-photo layout, no altered or redrawn upper subject, no approximate split, no filled silhouette, no random scribble ball, no uniform hatching, no full-page line texture, no opacity gradient, no multiple line colors, no default blue, no cyber UI, no technical data panel, no commercial poster, no false quote/data, no logo, and no watermark.

Use concrete line behavior, density, edge coherence, geometric function, color, and spacing rather than relying on adjectives such as “premium,” “experimental,” “alive,” or “chaotic.”

Inspect and correct

Review every result at full size and thumbnail size. Verify the exact split, truthful upper photography, recognizable line-built hero, stable outer edge, unstable flowing interior, clear density decay, sparse rational geometry, one source-derived line hue, large light blank space, and restrained English microtype.

If the hero looks like a random tangle, align high-density strokes to the decisive contour and axes. If it becomes a clean wireframe, add loops, offsets, breaks, returns, and internal drift. If the outer field competes, thin and remove most peripheral lines. If geometry feels decorative, tie each guide to source structure or delete it. If the color looks muddy or generic, return to the upper photo's most spirited hue. Regenerate with one targeted correction when needed.