Interactive Keystroke Commands

?	Print help 
:	Colon commands
t	Define the offset between the reference and input images
c	Draw a contour plot of the cross-correlation function
x	Draw a column plot of the cross-correlation function
y	Draw a line plot of the cross-correlation function
r	Redraw the current plot
f	Recompute the cross-correlation function
o	Enter the image overlay plot submenu 
w	Update the task parameters
q	Exit


		Colon Commands

:mark		    Mark regions on the display
:show	            Show current values of all the parameters


		Show/set Parameters

:reference	[string]    Show/set the current reference image name
:input		[string]    Show/set the current input image name
:regions	[string]    Show/set the regions to be cross-correlated
:shifts		{string]    Show/set the shifts database file name
:coords		[string]    Show/set the current coordinates file name
:output		[string]    Show/set the current output image name
:records	[string]    Show/set the current database record name
:xlag		[value]     Show/set the initial lag in x
:ylag		[value]     Show/set the initial lag in y
:dxlag		[value]     Show/set the incremental lag in x
:dylag		[value]     Show/set the incremental lag in y
:cregion	[value]	    Show/set the current region
:background	[string]    Show/set the background fitting function
:border		[value]     Show/set border region for background fitting
:loreject	[value]     Show/set low side k-sigma rejection parameter
:hireject	[value]     Show/set high side k-sigma rejection parameter
:apodize	[value]	    Show/set percent of end points to apodize
:filter		[string]    Show/set the default spatial filter 
:correlation	[string]    Show/set the cross-correlation function 
:xwindow	[value]     Show/set width of cross-correlation window in x
:ywindow	[value]     Show/set width of cross-correlation window in y
:function	[string]    Show/set correlation peak centering function 
:xcbox		[value]	    Show/set the centering box width in x
:ycbox		[value]	    Show/set the centering box width in y