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. Author manuscript; available in PMC: 2009 Dec 1.
Published in final edited form as: J Biomed Inform. 2008 Mar 13;41(6):927–935. doi: 10.1016/j.jbi.2008.02.008

Figure 5.

Figure 5

Y(HU) for perceptual grayscale and the generic versions of the realistic, spectral, and thermal color tables over the full CT data range (maximum HU window). Typically, the grayscale, spectral, and thermal tables dynamically scale with variable HU window widths, i.e., the shape of the Y(HU) plot remains the same but the window’s span of HU values determines the span of the plot. In contrast, realistic color schemes always map to the same exact HU values of the full HU window regardless of the selected window.