Bright point (BP) peak intensity in the 3118 Å OH band (red lines), the intensity histograms of the BPs’ dark background (blue lines), and the histograms of all pixels (green lines). Mean values and standard deviations are given in the text labels. The top panel shows the histograms obtained from the observational data recorded by the SuFI instrument; the bottom panel displays the same for the degraded 30 G MHD simulations. The BP histogram of the undegraded MHD data is indicated in the bottom panel by the black line.