Use the left mouse button to set the minimum value displayed on the X and Y axis'.

Use the right mouse button to set the maximum value displayed on the X and Y axis'.

Use the 's' key to enable or disable auto-scaling to Y axis.

Use the 'c' key to select the next histogram color choice in the list.

Use the 'L' key to enable or disable the display of the location on the histogram.

Use the 'R' key to enable or disable the display of the reference lines.

Use the middle mouse button to select the peak for calibration or spectral shifting.  Also used to set the baselines and max when performing susceptibility processing.

Press a number, n, for a reference peak to shift a selected peak to.

Use the 'h' key to calibrate the parts per million scale.

Enter the value in the PPM item on the Spectroscopy dialog

Use the 'l' key to move one spectral point to the left.

Use the 'r' key to move one spectral point to the right.

Use the 'u' key to move one spectral point up.

Use the 'd' key to move one spectral point down.

Use the 'e' key to expand the histogram.

Use the 'f' key to display the entire histogram.

Use the 'o' key to turn on/off the susceptibility correction for the pixel.

Use the 'p' key to set the Parts Per Million scale from 4.1 - 0.1

Use the left or right arrow keys to shift a spectra left or right 1 position.

Minimums and Maximums

	Enter or view the minimum and maximum values, in Y Min, Max, of the Y axis. Note The Y Min, Max is set automatically if View->Auto Scale has been enabled.
	Enter or view the minimum and maximum values, X Min, Max, of the X axis.

Y, X Offset

	Enter a value for the Y offset to separate the Y axis' of a Spectroscopy stack plot.
	Enter a value for the X offset to separate the X axis' of a Spectroscopy stack plot.

Browser

Select at least one of 1, 2, 3, 4 to select which browser images to use for histogram calculations.

Butterworth Filter

	Enter a value for the Order of the butterworth filter.
	Enter a value for the Cutoff of the butterworth filter.

Note

See View->Smooth for help on selecting this filter.

Gaussian Filter

	Enter a value for the Sigma of the gaussian filter.
	Enter for the # of times, in Iterations, to apply the gaussian filter Note Use 0 in Iterations to disable the filter.

Peak Subtraction

	Press Sub 1 to toggle the subtraction of the first peak from the histogram.
	Press Sub 2 to toggle the subtraction of the second peak from the histogram.
	...
	Press Sub n to toggle the subtraction of the nth peak from the histogram.

Note

M,S must have been pressed for this list to be displayed.

Spatial to plot the number of pixels per gray level for a region, or volume, of interest.

Horizontal to plot the average gray level for each column of a region of interest.

Vertical to plot the average gray level for each row of a region of interest.

Temporal to plot the average gray level, over a region of interest, for each image.

Spectroscopy to plot the height of each spectra.  See View->Spectra for different Spectroscopy histograms and Spectroscopy Only options for operations on the histogram.

Single to display a single spectra with a reference spectra, if it exists.

Grid to display multiple spectra, each in its own grid.

Stack to display multiple spectra, stacked in the same plot.  See Y,X offset on how to separate each spectra on its own axis'.

Non Spectroscopy Histograms

	Linear to use a linear scale for the X axis.
	Log to use a log scale for the X axis.
	Exponential to use an exponential scale for the X axis.
	Squared to use a squared scale for the X axis.
	Square Root to use a square root scale for the X axis.
	Cubed to use a cubed scale for the X axis.
	Cube Root to use a cube root scale for the X axis.

Spectroscopy Histograms

	Hertz to use a frequency scale for the X axis.
	Parts Per Million to use a parts per million scale for the X axis.
	Height to use a height scale for the X axis.

Label to toggle on/off the display of a label on the histogram.

Raw File to toggle on/off the display of the raw file name on the histogram.

Name to toggle on/off the display of the patient name on the histogram.

MRN to toggle on/off the display of the patient medical record number on the histogram.

Coordinates to toggle on/off the display of the region of interest coordinates on the histogram.

Date to toggle on/off the display of the date on the histogram.

Study Date to toggle on/off the display of the study date on the histogram.

Location to toggle on/off the display of the location on the histogram. (See key shortcuts 'L')

Zero Line to toggle on/off the display of a zero line on the histogram.

Box to toggle on/off the display of a box around the histogram.

2 Cursors to toggle on/off the display of 2 cursors on the histogram.

Reference Lines to toggle on/off the display of the lines indicating the reference peaks. (See key shortcuts 'R')

Color to display a histogram in color using black, white, Roi Draw Color, and Roi Erase Color, black is used for the axis and light grey is used for the background.

Monochrome to display a histogram in black, white and 2 gray levels, with black for the axis and light gray for the background.

Black and White to display a histogram with a white background and black for the axis and histogram.