Image Upload & Calibration Grid

How to Use:

1. Upload an Image: Click "Load Letter Image" and choose a JPEG or PNG file.
2. Calibrate the Grid: Drag the small dots on the calibration grid to simulate visual distortion caused by macular degeneration.
3. Undo or Reset: Use the "Undo" button to step back, or "Reset" to clear all grid changes.
4. Apply Correction: Click "Calculate Metrics" to generate the corrected image and display distortion metrics.
5. Compare Results: Use the side-by-side panels to view the original and corrected images.