advancedbackendfeaturefrontendhacktoberfest
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描述
Allow users to upload a small logo or image to embed in the center of QR codes.
Acceptance Criteria:
- Image upload functionality
- Image resizing and optimization
- Ensure QR code remains scannable
- Support PNG, JPG, SVG formats
- Preview with embedded logo
Implementation Hints:
- Use PIL (Python) for image processing
- Implement file upload in frontend
- Validate image dimensions and file size
- Test QR code scannability with embedded images