AIPS NRAO AIPS HELP file for TVSPLIT in 31DEC24



As of Fri Mar 29 2:39:34 2024


TVSPLIT: Verb which compares 2 TV planes, showing halves

INPUTS

TVCHAN          0.0        16.0    1st TV channel
TV2CHAN         0.0        16.0    2nd TV channel
          In split mode:
            Cursor position gives split point, button A selects
            enhance image A, button B selects enhance image B,
            button C increments the split mode and button D
            exits.
          In enhancement mode:
            Cursor X gives intercept, cursor Y gives slope, and
            button C reverses sign of slope.  Buttons A and B
            select which channel to enhance next and button D
            returns verb to split mode.

HELP SECTION

TVSPLIT
Type:  Verb
Use:   To compare images on 2 planes of the TV by showing one on the
       left or top and the other on the right or bottom.  While in
       normal mode: the cursor position controls the split point,
       button D causes the verb to quit, button C "increments" the
       split mode (switch which image is on left/top, switch between
       horizontal and vertical split, where possible0, and buttons A
       and B select an interactive image enhancement (just like
       TVTRANSF).  Button A selects channel A and button B selects
       channel B to be enhanced.  During the enhancement, the cursor X
       position controls the intercept and the cursor Y position
       controls the slope of the (linear) transfer function.  Buttons
       A and B may be used to select enhancement of channels A and B,
       resp.  Button C will switch the sign of the slope and Button D
       will return the verb to the split selection mode.  Instructions
       to remind you of these things will appear on your terminal.
Adverbs:
  TVCHAN.....Selects which channel is "channel A"
  TV2CHAN....Selects which channel is "channel B"
             If either are out of range, channels 1 and 2 are used.

EXPLAIN SECTION


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