Fig. 4: Comparison of imaging response between MBCR and BCFs.
From: Pixel-level Bayer-type colour router based on metasurfaces

a The postprocessing procedure of colour imaging. b, c Greyscale images were obtained directly by reconstructing the monochromatic images obtained using MBCR and BCFs respectively, for comparison of the intensity. d, e The reconstructed colour images of MBCR and BCFs combined with the spectral response, respectively.