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HISTO_CROSS

        HISTO_CROSS

    Computes the cross histogram of two input  images.   The  result  is  an
    image  of  dimensions  (Number of slots for first image, Number of slots
    for second image) which  represents  the  density  distribution  of  the
    correlation.  The value at a given (I,J) is thus the number of pixels in
    the input images that have the value corresponding  to  slot  I  in  the
    first  image  and  to slot J in the second one.  The output image can be
    used as input to task REGRESSION to evaluate some statistical parameters
    of  the  correlation.   See  also  HISTO_CLOUD  for a slightly different
    information.


Gildas manager
1999-03-15