Internal Service — This is not an HTTP endpoint. It’s called by the enhanced logo service.
Purpose
Uses OpenAI’s gpt-image-1.5 to transform a favicon into a hand-sketched artistic version.
Function Signature
async def generate_enhanced_logo(png_bytes: bytes) -> dict
Parameters
| Parameter | Type | Description |
|---|
png_bytes | bytes | Favicon as PNG bytes |
Returns
{
"success": True,
"image_base64": "iVBORw0KGgo...",
"image_data_url": "data:image/png;base64,iVBORw0KGgo..."
}
Style Transfer Approach
The function sends two images to OpenAI:
- base_image.png - A hand-sketched Target logo (style reference)
- target_image.png - The favicon to transform
The prompt instructs the model to apply the sketched style from image 1 to image 2.
Prompt Engineering
CRITICAL: You are receiving TWO images in a specific order:
- FIRST IMAGE (base_image.png): The Target retail company logo drawn in
hand-sketched style - this is ONLY for style reference
- SECOND IMAGE (target_image.png): A different company's favicon/logo -
this is what you MUST transform
YOUR TASK: Redraw the SECOND IMAGE using the hand-sketched artistic style
from the FIRST IMAGE.
Code Location
src/website/enhanced_logo/service.py
# Lines 170-233: generate_enhanced_logo()
