照片转画布艺术品提示

```json { "generation_request": { "meta_data": { "task_type": "photo_to_square_canvas_artwork_only", "language": "zh-Hans", "priority": "highest", "version": "v1.1_DIRECT_CANVAS_ART_ONLY" }, "input": { "mode": "image_to_image", "reference_image_usage": "very_high", "preserve_identity": true, "preserve_facial_features": true, "notes": "将上传的情侣照片转换为方形画布画作。不进行产品设置。最终图像应仅为绘制好的画布设计本身，居中且干净。保持情侣可辨识，但简化为温暖的手绘插画风格。" }, "output": { "aspect_ratio": "1:1", "resolution": "ultra_high", "num_images": 2, "sharpness": "high", "grain": "subtle_canvas_texture" }, "canvas_art_style": { "art_medium": "画布上的丙烯插画", "texture": "可见的画布织物纹理", "linework": "清晰的墨水轮廓", "coloring": "柔和的彩绘填充与轻柔的阴影", "finish": "真实的手绘画布外观" }, "canvas_design": { "background_color": "柔和的淡紫色或柔和的粉彩色调", "pattern": "散落的小白色或浅色心形涂鸦", "couple_pose": "与上传照片相似的浪漫亲密坐姿拥抱", "edge_detail": "情侣插画周围的微妙白色轮廓" }, "subject_rules": { "identity": "匹配上传情侣的面部结构和发型", "expressions": "温暖亲切的微笑，带有淡淡的红晕", "hands": "正确的解剖结构，自然的互动", "wardrobe_translation": "原始服装的简化插画版本" }, "composition": { "centered": true, "clean_background": true, "no_external_objects": true }, "negative_prompt": [ "产品摄影", "画架", "木片", "蜡烛", "房间背景", "3D 渲染", "动漫风格", "水彩晕染", "文字", "标志", "水印", "多余的手指", "变形的手", "模糊" ], "quality_rules": { "must": [ "仅显示方形画布画作", "画布纹理清晰可见", "情侣可辨识", "干净的插画线条", "浪漫温暖的色调", "周围无多余物体" ] } } } ```