夜雨聆风
利用GPT image2模型，随便找了张姑娘的图测试（尽量正脸iimage2的人像虽然更加保留人物真实性，但整体还是弱于香蕉2）。提示词：
Convert uploaded portrait into a standard Chinese primary school ID photo, then generate a precise print-ready layout.
Step 1 – ID Photo Generation (严格证件照规范)
Composition & Framing:
Front-facing, straight head-and-shoulders portrait;
perfectly centered and symmetrical;
portrait orientation (vertical);
crop from top of head to upper chest;
face occupies ~70% of frame height;
no head tilt, no rotation.
Lighting:
Soft, even, frontal lighting;
no shadows, no directional lighting;
flat, natural illumination;
clear facial details, natural skin tone.
Background:
Solid Chinese ID blue (#3A7BD5);
uniform, clean, no gradient.
Facial Expression:
Neutral or very slight smile;
mouth closed;
eyes looking straight at camera.
Appearance:
Hair neat, ears fully visible;
no accessories;
no hair covering eyebrows or eyes.
Clothing:
Plain light-colored top (white or light blue);
no patterns, no logos.
Quality:
High resolution;
realistic skin texture;
no filters, no beautification.
Step 2 – Print Layout (专业冲印级排版)
Canvas:
5-inch photo size:
127mm (height) × 89mm (width);
portrait orientation (vertical);
300 DPI;
pure white background.
Photo Size:
Each ID photo:
25mm (width) × 35mm (height);
portrait orientation (vertical).
Grid Layout:
3 × 3 grid (total 9 photos);
all photos upright (no rotation).
⚠️ Spacing (关键优化点):
Spacing between photos: EXACTLY 0.5mm;
NO white borders around each photo;
photos must be directly adjacent with only 0.5mm cutting gaps;
no padding, no extra margins between photo edges.
Margins:
Outer margin: 3–5mm only (sheet border);
no inner margins around individual photos.
Alignment:
Perfectly aligned grid;
equal spacing;
precise geometric placement.
Cutting Guides:
Optional ultra-thin light gray hairline guides;
aligned exactly along the 0.5mm gaps;
must not overlap image area.
Final Output Requirements:
Print-ready, 300 DPI;
accurate real-world dimensions;
strict vertical orientation (photos + sheet);
sharp edges;
no distortion;
no watermark;
no text;
⚠️ Critical:
Each photo must be edge-to-edge (no white border),
so that cutting along the 0.5mm gaps produces finished photos directly,
without any additional trimming.
