Table 1 Calculated MSE and SSIM for focused and defocused comparisons.

From: Computational Imaging Prediction of Starburst-Effect Diffraction Spikes

  Focused Defocused
MSE (×10−3) SSIM MSE (×10−3) SSIM
R 0.311 0.965 0.478 0.951
G 0.270 0.950 0.381 0.960
B 0.868 0.973 0.676 0.966
B/W 0.304 0.979 0.403 0.968
  1. Grayscale images were calculated from truecolour RGB images (Fig. 2) with weighting factors of [0.2989, 0.5870, 0.1140] for [R, G, B] channels respectively and then gamma compressed, as described by Equation (A.1) of the Supplementary Information. The low MSE (<0.1%) and high SSIM metrics (>95%) indicate good agreement between theoretical predictions and experiment data.