Detail Compacted Contrast

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IQI DCC ROIs.png
IQI DCC ROIs legend.png
$ DCC = \frac{\sum_i{PCNR_i \cdot w_i}}{\sum_{i}{w_i}} $

where PCNR (Pixel Contrast to Noise Ratio) is:

$ PCNR_i = |GL_i-\mu_B|, \qquad \forall i\in D_i $

and

  • $ \mu_B $: mean pixel value of the background ROI
  • $ \sigma_B $: standard deviation of pixel values of the background ROI
  • $ GL_i $: gray level of pixel i
  • $ GL_i $: gray level of pixel i
  • $ D_i $: pixels belonging to the detail