1. A method comprising: for a window defining a range of pixel values that are capable of being simultaneously presented by a display, identifying window and level values and corresponding minimum and maximum values for a window, wherein the level value corresponds to a center of the range of pixel values that define the window; determining, with processing circuitry, whether a pixel visibility loss condition exists based upon one or more of the window and level values, the minimum value or the maximum value, wherein determining whether a pixel visibility loss condition exists comprises determining whether there is a lack of perceptible distinctiveness between pixels within the window based on a luminance range of the display and just noticeable indices, wherein determining whether there is a lack of perceptible distinctiveness between pixels within the window comprises determining that there is a lack of perceptible distinctiveness between pixels within the window in that two or more consecutive presentation pixel values may be mapped to a same just noticeable index in an instance in which a ratio of: (i) a difference between first and second just noticeable indices for first and second luminance values, respectively, to (ii) a difference between the first and second presentation pixel values corresponding both to the first and second just noticeable indices, respectively, and to transformed representations of first and second pixel values, respectively, is less than one; and in an instance in which the pixel visibility loss condition exists, causing an indication to be provided to a user.