; PIX2XY
;---------------------------------------------------------------
;! Specifies a pixel in an image
;# ADVERB IMAGING COORDINATES TV
;-----------------------------------------------------------------------
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;---------------------------------------------------------------
PIX2XY    LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
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PIX2XY
Type: Adverb (Real*2)
Use:  Specifies a pixel position in an image.  The first number
      gives the column number and the second number gives
      the row number.  The (1,1) pixel location is the
      bottom left corner of the image.  Fractional pixel
      values can be used.
Null value:  0
       Null value usually means at reference pixel
Verbs:
   IMDIST....Determines spherical distance between two pixels.  PIX2XY
             is the pixel position in the second image.
   IMSTAT....Returns statistics of a sub-image.  PIX2XY is the pixel
             coordinates of the minimum image value found.
   TVILINE...Verb to draw a straight line on an image on the TV.  PIX2XY
             is the pixel position of the end point.
   TVSTAT....Find the mean and RMS in a blotch region on the TV.
             PIX2XY is the pixel coordinates of the minimum image value
             found.
Procedures:
   TVDIST....Determines spherical distance between two pixels on TV
             screen.  PIX2XY is the pixel position selected in the
             second image.
Tasks:
   PASTE.....Pastes a selected subimage of one image into another.
             PIX2XY is the alignment pixel in the second image.
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