post
https://preteeth.online/api/1.0/analysis/eline
Analyze the E-line (Esthetic line) from a profile photo.
Profile (Side) Photo Requirements
- Resolution: Minimum 1000 x 1000 pixels
- Background: Solid white or black
- Orientation: Full side profile (90° rotation from frontal view)
- Expression: Lips relaxed with teeth lightly together
- Accessories: No glasses, no facial obstructions
- Subject: Only one person per photo
- Posture: Upright (not lying down)
- File format: JPG or PNG, max 5MB
❌ Common Errors
- Background is cluttered, colorful, or patterned
- Face not fully turned to the side
- Wearing glasses or obstructive accessories
- Presence of beard or facial hair
- Blurry or low-resolution
- Shot taken from too far (small face in frame)
- Subject lying down
Acceptable/Unacceptable Image Example: 
Return Format
The API will return an object containing the following:
- img_url: The URL of the processed image with E-line visualization.
- eline: An object containing the key points for E-line analysis.
- pg_point: The coordinates [x, y] of the Pogonion point (most prominent point of the chin).
- prn_point: The coordinates [x, y] of the Pronasale point (most prominent point of the nose tip).
Image Example for E-line Visualization: 