20.500.12556/RUL-181116 Rediscovering lost colors: film color restoration by hyperspectral imaging and cluster-based spectral correction algorithm (CBSCA) The present study proposes a new method for the digital restoration of color films affected by irregular color degradation. Color fading is a major problem affecting analog color films and while most existing digital methods address homogeneous dye fading, the correction of irregular color degradation remains a challenging and time-consuming process. The main objective of this work is to develop a scalable and minimally user-guided strategy capable of restoring such complex degradation patterns. The proposed approach combines visible-range hyperspectral imaging of degraded film frames to obtain detailed spectral information with a novel computational algorithm referred as the Cluster-Based Spectral Correction Algorithm (CBSCA). This algorithm is specifically designed to handle the large volume of data recorded by hyperspectral acquisition, enabling robust color restoration while ensuring reduced computational demand and limited subjective intervention. In comparison with conventional RGB scanners and color restoration software, this approach offers a methodology to perform accurate color acquisition and correction while effectively managing large hyperspectral datasets. The ultimate goal is to recover the film's original visual content, ensuring its accessibility to the public. color films digital restoration hyperspectral imaging cluster-based spectral correction algorithm CBSCA barvni filmi digitalno restavriranje hiperspektralno slikanje CBSCA algoritem true false true Angleški jezik Slovenski jezik Članek v reviji 2026-03-25 13:42:05 2026-03-25 13:42:07 2026-03-26 04:21:50 0000-00-00 00:00:00 2026 0 0 Str. 12511-12523 iss. 14 Vol. 16 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 004.9:791.53 2046-2069 10.1039/D5RA08504G 273009411 https://pubs.rsc.org/en/content/articlehtml/2026/ra/d5ra08504g 1 e9769885-2847-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=231299 d5ra08504g.pdf d5ra08504g.pdf 1 E53A35B3BC2DBB553F8C718FFA566E06 edceae8fb71fe47e64baf1ac468dec2ad0ddf8d4f21772e0c1bc2705bece097b 33ef1964-2848-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=231300 Fakulteta za matematiko in fiziko 0 0 0