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Blinder la normalisation terrain contre les tuiles d'altitude constante

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This commit is contained in:
Antoine Jacquin
2026-09-18 21:04:13 +02:00
parent 92197e3e57
commit 3c19dc4226
1 changed files with 3 additions and 1 deletions
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lidar_pipeline/rendering.py
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@ -261,7 +261,9 @@ def _apply_colormap(data, tif_file, resolution=None):
if len(valid_data) == 0:
return data, 'terrain', Path(tif_file).stem.replace('_', ' ').title(), '', '', False
p2, p98 = np.percentile(valid_data, (2, 98))
data = np.clip((data - p2) / (p98 - p2), 0, 1)
# Garde contre les tuiles quasi constantes : plage nulle → division par zéro
span = max(p98 - p2, 1e-6)
data = np.clip((data - p2) / span, 0, 1)
title = Path(tif_file).stem.replace('_', ' ').title()
return data, 'terrain', title, 'Altitude normalisée', '', False