## Your Task
- **Input**: single-plane mosaic image (H×W×1) with a 2×2 CFA pattern (RGGB).
- **Output**: hyperspectral reflectance cube (H×W×61) in [0, 1].

![](https://www.googleapis.com/download/storage/v1/b/kaggle-user-content/o/inbox%2F28174013%2Fa921d2cc46d65d2bfa71bbd15ce7c468%2FTRACK%201%20DIAGRAM%201.jpg?generation=1756184233599041&alt=media)

## Data
- Diverse everyday objects, indoor lighting near D65.
- Calibrated reflectance ground truth (61 bands, 400…1000 nm).
- Train/validation splits provided; hidden test for final leaderboard.

## Helper functions
- You can use our provided functions here ([https://github.com/hyper-object/2026-ICASSP-SPGC](https://github.com/hyper-object/2026-ICASSP-SPGC)) to load the data