提示詞/GPT Image 提示詞/提示詞詳細資訊圖片提示詞復古半色調海報插畫第 1 張，共 4 張一款結構化 JSON 風格提示詞，用於將照片或姓名轉化為大膽復古半色調海報藝術，靈感來自模板與網版印刷風格。此提示詞搭配參考圖片使用立即使用讚167瀏覽5,338收藏118儲存或分享此提示詞，下次就能輕鬆找到分享提示詞提示詞複製"task": "Convert the uploaded reference photo (or a well-known likeness of the named person) into a vintage halftone bold poster-art style portrait illustration.", "input": { "subject_name": "{{PERSON_NAME}}", "reference_image": "{{UPLOADED_PHOTO_OR_NULL}}", "note": "Only the subject's name or an uploaded photo should be required from the user. All other parameters below are fixed art-direction rules." }, "output_exclusions": [ "Do NOT include a small circular/rounded-corner inset photo of the real reference image in the corner of the poster — the final output is the illustration ONLY, full-bleed, no reference thumbnail overlay." ], "art_style": { "medium": "digital illustration mimicking screen-printed / offset-lithograph poster art", "influences": ["1960s-70s bold political/protest poster art", "Shepard Fairey-style bold stencil illustration", "risograph print texture", "vintage magazine cover design", "retro concert/album poster art"], "line_work": "high-contrast ink linework with fine cross-hatching and stippling for shading, visible pen/brush strokes in hair strands", "rendering": "flat color blocking combined with engraving-style fine line shading — NOT photorealistic, NOT airbrushed, NOT smooth gradient shading" }, "composition": { "pose": "subject's head and upper shoulders/chest in a strict 90-degree side profile (facing left), eyes looking straight ahead in profile, chin slightly lifted, neutral/confident expression", "framing": "portrait orientation (4:5 or 3:4 aspect ratio), subject fills roughly 70-85% of vertical frame, cropped at mid-chest/shoulder", "focal_backdrop": "a large solid-color circle (sun/halo motif) centered behind the subject's head, circle diameter roughly 60-70% of canvas width, subject's hair and shoulders slightly overlap and break the circle's edge", "hair_treatment": "hair rendered as one of the most detailed elements — individual flowing strands, wind-swept or voluminous movement, strong directional lighting creating highlight streaks within the dark mass of hair" }, "background": { "base_texture": "coarse woven linen/canvas paper texture overlaid across the entire composition at low opacity", "layout": "asymmetric geometric color-block panels behind/around the circle — e.g. a solid dark rectangle in one lower corner, a contrasting stripe or panel along one edge, sometimes a fine halftone dot-pattern or crosshatch pattern filling one quadrant", "halftone_overlay": "visible CMYK-style halftone dot pattern subtly overlaid on background panels and occasionally bleeding into the portrait's shadow areas", "grain": "fine analog print grain/noise across the whole image for an aged, screen-printed look" }, "color_palette": { "instruction": "Select ONE cohesive limited palette (2-4 colors max) per poster, high contrast, no photographic gradients. Choose based on mood/subject or default to the classic scheme.", "classic_scheme": { "background_base": "warm cream / aged paper beige (#e8dcc4-ish)", "accent_circle": "bold poster red (#c1272d-ish)", "linework_shadow": "near-black ink (#1a1512-ish)", "highlight": "same cream as background used for lit skin/hair areas" }, "alt_scheme_dark": { "background_base": "black or deep charcoal", "accent_circle": "poster red or burnt orange", "linework_shadow": "black ink", "highlight": "warm cream/tan" }, "alt_scheme_cool": { "background_base": "deep navy blue", "accent_circle": "muted brick-red/orange", "linework_shadow": "navy/black ink", "highlight": "warm cream, with the subject's true eye color kept naturally visible as the one full-color accent" }, "duotone_option": "for a graphic pop-art variant, render the entire subject in a single duotone (e.g. mustard-yellow and black, or gold and black) instead of cream/red/black" }, "typography": { "headline": { "content": "subject's name (first name, or first+last stacked on two lines)", "placement": "top-left corner of the poster, inset from edges", "font_style": "extra-bold condensed slab-serif or grotesque sans-serif, all caps, tightly kerned, stacked on 1-2 lines, large scale (dominant typographic element)", "color": "matches the linework/shadow ink color, occasionally with a subtle drop shadow or outline for depth" }, "subheadline": { "content": "a short 2-4 word tagline/epithet related to the subject (e.g. an evocative title, nickname, or descriptor)", "placement": "directly below the headline, smaller scale", "font_style": "bold condensed sans-serif or slab-serif, all caps, single line", "color": "the poster's accent color (matches the circle color)" } }, "clothing_and_accessories": { "styling": "simple, era-appropriate or modern minimal clothing rendered in flat color with the same halftone/linework shading as the rest of the piece — collared shirts, blazers, off-shoulder tops, or textured jackets with visible fabric-fold linework", "accessories": "keep minimal — small jewelry (earrings, necklace) can be included if present in reference, rendered as simple line-art shapes" }, "lighting": { "style": "single hard directional light source (as if raking across the side profile), creating strong graphic shadow shapes rather than realistic soft shading", "shadow_rendering": "shadows built from crosshatching, stippling, and halftone dot density rather than smooth gradients" }, "quality_and_fidelity": { "likeness": "preserve accurate, recognizable facial proportions and features of the subject from the reference photo/name, translated into the illustrated line-art style — the illustration must be clearly identifiable as that specific person", "resolution": "crisp, poster-print-ready quality, sharp linework, no blur, no photographic artifacts", "consistency": "maintain identical composition, palette rules, and typography placement described above regardless of subject, so the whole set reads as one unified poster series" }展開提示詞
