"task": "将上传的参考照片（或该指定人物广为人知的肖像）转换为复古半色调粗犷海报艺术风格的人物肖像插画。",

"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" }

"task": "将上传的参考照片（或该指定人物广为人知的肖像）转换为复古半色调粗犷海报艺术风格的人物肖像插画。", "input": { "subject_name": "{{PERSON_NAME}}", "reference_image": "{{UPLOADED_PHOTO_OR_NULL}}", "note": "用户只需提供人物姓名或上传一张照片。以下所有其他参数均为固定的美术指导规则。" }, "output_exclusions": [ "海报角落中不得包含真实参考图像的小圆形/圆角缩略图嵌入照片 —— 最终输出仅为插画本身，通铺满版，不带参考缩略图覆盖。" ], "art_style": { "medium": "数字插画，模拟丝网印刷/胶印海报艺术", "influences": ["20世纪60-70年代大胆的政治/抗议海报艺术", "谢帕德·费瑞（Shepard Fairey）式大胆模板喷绘插画", "riso孔版印刷纹理", "复古杂志封面设计", "怀旧演唱会/专辑海报艺术"], "line_work": "高对比度墨水线条，配合精细的交叉排线与点描法进行阴影刻画，发丝中可见明显的钢笔/画笔笔触", "rendering": "平涂色块结合雕刻版风格的精细线条阴影 —— 非照片写实，非喷绘，非平滑渐变阴影" }, "composition": { "pose": "人物头部与上肩/胸部呈严格的90度正侧脸（面朝左），眼睛平视前方侧面，下巴略微上扬，表情中性/自信", "framing": "竖版画幅（4:5 或 3:4 宽高比），人物约占画面垂直方向的70-85%，裁切至胸中部/肩部", "focal_backdrop": "人物头部后方居中位置放置一个大型实色圆形（太阳/光环图案），圆形直径约为画布宽度的60-70%，人物的头发与肩膀轻微叠压并打破圆形边缘", "hair_treatment": "头发作为最精细的元素之一进行刻画 —— 单独流动的发丝、被风吹动或蓬松的动感，深色发块中以强烈的方向性光线形成高光条纹" }, "background": { "base_texture": "在整幅作品上以低不透明度叠加粗织亚麻/帆布纸张纹理", "layout": "圆形后/周围呈不对称几何色块面板 —— 例如某个下方角落为实色深色矩形，某一边为对比色条纹或面板，有时一个象限内填充精细的半色调点纹或交叉排线图案", "halftone_overlay": "在背景面板上隐约叠加可见的CMYK式半色调点纹图案，偶尔渗透入肖像的阴影区域", "grain": "整幅图像覆盖细腻的模拟印刷颗粒/噪点，营造陈旧、丝网印刷的观感" }, "color_palette": { "instruction": "每张海报选择一套统一且克制的色板（最多2-4种颜色），高对比度，禁止使用照片级渐变。根据氛围/人物进行选择，或默认采用经典方案。", "classic_scheme": { "background_base": "暖奶油色/陈旧纸张米色（约 #e8dcc4）", "accent_circle": "大胆海报红（约 #c1272d）", "linework_shadow": "近黑墨色（约 #1a1512）", "highlight": "与背景相同的奶油色，用于受光皮肤/发丝区域" }, "alt_scheme_dark": { "background_base": "黑色或深炭灰", "accent_circle": "海报红或焦橙", "linework_shadow": "黑色墨", "highlight": "暖奶油/棕褐" }, "alt_scheme_cool": { "background_base": "深海军蓝", "accent_circle": "低饱和砖红/橙", "linework_shadow": "海军蓝/黑墨", "highlight": "暖奶油色，同时人物的真实眼睛颜色作为唯一的全彩亮点予以自然保留" }, "duotone_option": "若采用图形化的波普艺术变体，将整个人物以单一双色（duotone）形式呈现（例如芥末黄配黑，或金黄配黑），而非奶油/红/黑" }, "typography": { "headline": { "content": "人物姓名（名，或名+姓分两行排列）", "placement": "海报左上角，距边缘内缩", "font_style": "超粗体压缩板状衬线或 grotesque 无衬线字体，全大写，紧字距，叠排1-2行，大字号（占主导排印元素）", "color": "与线条/阴影墨色一致，偶配以微妙的投影或描边以增加层次" }, "subheadline": { "content": "与该人物相关的2-4字短标语/称号（例如富有感染力的头衔、昵称或描述）", "placement": "紧贴主标题下方，字号略小", "font_style": "粗体压缩无衬线或板状衬线字体，全大写，单行排列", "color": "海报的强调色（与圆形颜色一致）" } }, "clothing_and_accessories": { "styling": "简约、符合时代或现代极简的服饰，以平涂色块呈现，并采用与作品其余部分一致的半色调/线条阴影 —— 带领衬衫、西装外套、露肩上衣或带可见面料褶皱线条的纹理夹克", "accessories": "保持极简 —— 若参考图中存在，可加入小巧的配饰（耳环、项链），以简洁线稿形式绘制" }, "lighting": { "style": "单一硬质方向光源（如同沿侧脸扫过），形成强烈的图形化阴影形状，而非真实柔和的渐变光影", "shadow_rendering": "阴影由交叉排线、点描和半色调点密度构成，而非平滑渐变" }, "quality_and_fidelity": { "likeness": "保留参考照片/姓名中人物准确、具辨识度的面部比例与特征，并转化为插画线条风格 —— 插画必须能被明确识别为该特定人物", "resolution": "清晰、可直接用于海报印刷的画质，线条锐利，无模糊，无摄影伪影", "consistency": "无论人物对象为何，均保持完全相同的构图、色板规则与字体排布，使整组作品呈现为统一的系列海报" }