Fig. 21
From: From RGB camera to hyperspectral imaging: a breakthrough in Neolithic rock painting analysis
The two main scenes of a larger part of panel #4, separated using the ICA transformation and projected on a high-resolution image of the whole panel (Samsung galaxy S21, 64 Mpx). a RGB high-resolution camera photo (slightly different shot angle but same illumination as for the HSI image). c YBK DStretch® processing of a stitching of several high-resolution photos. b The ‘Barbary sheep scene’ build with 3 hyperspectral images analyzed with ICA transformation (component #3). d the ‘anthropomorph scene’, same but using ICA component #6
