
@C1@c@b@_ Histograms

    The horizontal axis is the pixel value and the vertical axis is the
    population count. The inset (text) shows respectively the average
    pixel value, the largest population and the value at which it occurred.
    e.g., Ave = 8 Peak=0.6 at 10
    means the average pixel value is 8, and 60% of all pixels have a 
    value of 10. 

@b Interaction

    Click the title bar to bring up the pop menu.
