1 HISTO_CLOUD
        HISTO_CLOUD

    Makes the cross histogram of two input  images.    The   result   is   a
    table of two columns:
      - First column :  value of pixel (I,J) of first image
      - Second column :  value of pixel (I,J) of second image

    Using the GreG command POINT on this  output  table   will   produce   a
    cloud  plot  of the correlation between the two images.  This program is
    reasonably well adapted for small images, but you should use HISTO_CROSS
    for large images.
2 Z_NAME$
        TASK\FILE "First input image" Z_NAME$

    This is the name of the first image used in the cross correlation.
2 Y_NAME$
        TASK\FILE "Second input image" Y_NAME$

    This is the name of the second image used in the cross correlation.
2 X_NAME$
        TASK\FILE "Output Cross correlation table" X_NAME$

    This is the name of the output table.
1 END