1 REGRESSION Compute the linear regression from a cross histogram
        REGRESSION

    This  task computes the best least square linear regression  between two
    images.  It uses as input a cross histogram of the two images which must
    have been created previously by program HISTO_CROSS.
2 IN$
        TASK\FILE       "Input cross histogram" IN$

    The name of the input cross histogram (usually created by HISTO_CROSS).
2 THRESHOLD$
        TASK\REAL       "Pixel threshold"       THRESHOLD$

    The minimum number of pixels, below which data are not considered.
1 ENDOFHELP



















































