Fig. 5From: Restoration method of sootiness mural images based on dark channel prior and Retinex by bilateral filterThe sootiness mural image of area 1: a true color image (TCI); b near-infrared band image; c pseudo color image (PCI); d sootiness mural image (SMI) after block histogram matching; e enlarged image in the red frame of TCI; f enlarged image in the red frame of SMIBack to article page