早期更换证件照底色，通常只能选择重新拍摄或借助 photoshop 等专业软件进行处理。这不仅耗时费力，还要求操作者具备一定的图像编辑技能，许多人因不熟悉相关工具而不得不花钱寻求他人帮助。
如今，随着 AI 绘图技术的发展，特别是 Nano Banana 的流行，这一需求迎来了更高效的解决方案。海外平台 iMini AI 将 Nano Banana 融入其工作流，并推出了专门用于证件照生成的模板功能。用户只需上传原始照片，选择所需背景颜色，系统即可自动生成符合要求的证件照，整个过程无需手动调整，也无需支付额外费用。
以下是几种常见的证件照生成指令，供参考使用：
1、生活照转证件照：
中文指令：请将上传的人物照片（不限性别）转换为上半身护照风格证件照，背景设为纯白色。人物需正对镜头，面带温暖自然的微笑。处理时应加入柔和均匀的光线、整洁得体的仪容细节，并适当添加轻微头部倾斜，以增强画面自然感，确保适用于各类人群。
英文指令：Transform the uploaded photo of any person, regardless of gender, into a chest-up passport-style photo with a solid white background. The subject should face the camera directly, with a warm, friendly smile. Add subtle details like soft, even lighting, a neat and well-groomed appearance, and a slight head tilt for a natural look, ensuring versatility for all individuals.
2、证件照背景色更换：
蓝色背景操作指令：
请将上传的照片背景替换为纯蓝色，同时完整保留人物的所有细节与原有光影效果。确保人物外貌、面部特征及整体照明不变，仅修改背景颜色。
英文指令：
Transform the uploaded photo by changing the background color to solid blue, while preserving all details and consistency of the person in the image. Ensure the subject's appearance, lighting, and features remain unchanged, focusing solely on the background replacement.
红色背景操作指令：
请将任意人物的生活照转换为上半身护照式证件照，背景改为纯红色。人物须正面直视镜头，表情呈现温暖友好的微笑。处理过程中需优化光线分布，保持仪容整洁，并加入轻微头部倾斜，使整体效果更显自然，适配不同性别与年龄层。
英文指令：
Transform the uploaded photo of any person, regardless of gender, into a chest-up passport-style photo with a solid red background. The subject should face the camera directly, with a warm, friendly smile. Add subtle details like soft, even lighting, a neat and well-groomed appearance, and a slight head tilt for a natural look, ensuring versatility for all individuals.
3、职业形象照生成：
中文指令：请将原图转化为类似苹果公司高管风格的高端工作室人像照。采用半身构图，人物穿着简约专业的服装，表情自信自然。使用柔和的方向性光源突出面部轮廓，在眼睛中保留细微的眼神光。背景为浅灰或米白的平滑渐变，确保人物与背景有清晰分离。可适度添加精致胶片颗粒以提升质感，整体氛围需体现宁静、经典与优雅。构图遵循极简主义原则，运用留白与非中心布局增强现代感。——禁止出现文字、标识、干扰物或杂乱元素。
英文指令：Transform the photo into a high-end studio portrait in the style of Apple executive headshots. The subject is shown in a half-body composition, wearing professional yet minimalist attire, with a natural and confident expression. Use soft directional lighting to gently highlight the facial features, leaving subtle catchlights in the eyes. The background should be a smooth gradient in neutral tones (light gray or off-white), with clear separation between subject and background. Add a touch of refined film grain for texture, and keep the atmosphere calm, timeless, and sophisticated. Composition should follow minimalist principles, with negative space and non-centered framing for a modern look. --no text, logos, distracting objects, clutter.
除了上述证件照相关功能外，iMini AI 平台还提供多种 AI 一键生图模板，如热门的 3D 手办模型生成、条漫创作、线稿提取以及智能修图等。所有功能均无需用户自行编写复杂指令，只需点击对应模板并上传图片即可快速生成理想效果。
