分享一个 AI 提示词，可实现将超低分辨率 240p 图像转换为 4K，太神奇了，不信直接看效果：
提示词如下：
Create an ultra realistic, high end studio headshot using the provided image while keeping the face, expression, pose, and identity completely unchanged. Do not alter the subject’s facial structure, expression, hairstyle, or positioning in any way. Use professional studio lighting with a soft but directional key light placed at a 45 degree angle to create natural facial depth, along with smooth and gentle shadow falloff on the opposite side without harsh shadows or crushed blacks, and a very subtle white rim light behind the subject to naturally separate them from the background. Ensure the face is bright, sharp, and clearly visible with smooth highlight roll off and no overexposure, while maintaining soft lifted shadows with full detail preserved in darker areas. Enhance the skin naturally by keeping realistic skin texture and visible pores, preserving rich natural skin tones, and avoiding over smoothing or plastic looking skin. Apply premium cinematic color grading with slightly warm skin tones, neutral whites, a softly darkened background for better contrast and subject separation, and clean, balanced colors without oversaturation. Use a minimal professional background such as dark grey or a soft gradient with slight blur to create depth and strong subject isolation. Subtly sharpen the eyes and facial details while keeping the final image natural, realistic, and high end. The final look should feel cinematic but clean, premium and professional, sharp and editorial style, without being overly moody or dramatic. Render the final image in ultra sharp 4K quality with a luxury editorial photography aesthetic.
翻译成中文大概就是：
使用提供的图像，创建一张超现实、高端工作室头像照片，同时完全保持面部、表情、姿势和身份不变。不要以任何方式改变受试者的面部结构、表情、发型或定位。使用专业工作室照明，配备柔和但定向的45度角主光，以创造自然的脸上深度，同时在对侧实现平滑柔和的阴影渐变，避免生硬阴影或压黑，并为受试者身后添加非常微妙的白色轮廓光，以自然地将他们与背景分离。确保面部明亮、锐利且清晰可见，具有平滑的高光渐变且无过曝，同时保持柔和提升的阴影，并在较暗区域保留完整细节。通过保留逼真的皮肤纹理和可见毛孔、保持丰富的自然肤色，并避免过度平滑或塑料感皮肤，来自然地增强皮肤质感。应用高级电影级色彩分级，略带温暖的肤色、中性白、柔和变暗的背景以提升对比度和主体分离，以及干净、平衡的色彩而不饱和过度。使用简约的专业背景，例如深灰色或带有轻微模糊的柔和渐变，以创造深度和强烈的主体隔离。微妙地锐化眼睛和面部细节，同时保持最终图像自然、逼真且高端。最终效果应感觉电影感但干净、高端且专业、锐利且具有编辑风格，而不过度阴郁或戏剧化。以超锐利4K质量渲染最终图像，采用奢华的编辑摄影美学。