Fig. 2.

Comparison of reflectance in 16 wavebands of reconstructed hyperspectral images from RGB images with initial hyperspectral images from snapshot hyperspectral camera. Shown are 3-representative color blocks. The relative error between initial and reconstructed hyperspectral reflectance of the color blocks in the left, medium and right are 10.95% (the maximum reconstruction error), 4.946% (close to the mean error) and 0.424% (the minimum error) respectively. Black box symbol represents the reflectance from initial hyperspectral images; Red circle symbol corresponds to the reflectance of reconstructed hyperspectral images. The insert of each panel is the RGB image of selected color block.