This is a port of an X11 program called Xv (v3.10a) by John Bradley.
This is version 2.19.

man page info:
      The xv program displays images in the GIF, JPEG, TIFF, PBM, PGM, PPM,
      X11 bitmap, Utah Raster Toolkit RLE, PDS/VICAR, Sun Rasterfile, BMP,
      PCX, IRIS RGB, XPM, Targa, XWD, PhotoCD, possibly PostScript, and PM 
      formats on workstations and terminals running the X11 Window System.

History: (or his_story..)
2.19
  Loading of XPM images didn't look too good since the colors weren't allocated in
  the correct order. Saving didn't work either.
  When using the -wait <secs> option the program crashed on the last image
  due to a removal of an exit() in order for the program to remove all resources
  before leaving.
  Key-files has been introduced and since there isn't much interest for supporting
  this program, saving of the formats I have added has been connected to this keyfile..
  (So requester-killers will no longer do much good..)

2.18
  Memory usage was a bit too high, somewhat reduced.
  Added a HVSpace in the interface making it resizable vertically also.
  when loading a 24 bit image then opening the coloreditor then loading an 8
  bit image would cause a crash..

2.17
  Some more resource handling has been added. Now 'xv.display: Workbench' in AmigaDefaults
  will work! (and a truckload of others! 'setenv X11/debug 1' to see what resources xv
  is asking for!)
  autocrop didn't redraw the image.
  pressing return in the image window wouldn't load the current, but the last image in the
  list.

2.16
  PNG support.
  The graph values were missing.
  If changing screenmode while the color editor was up would cause a screen to stay open.

2.15
  Recent changes in the mui part of libX11 wasn't reflected in the 'old' xv source..
  so the color window produced a huge amount of enforcer hits..
  The 'lock screenmode' entry were missing.
  SAS optimizer generated a bug in tiff saving..
  Saving filename behaved somewhat odd. Now new filename gets the old save directory in front.

This program uses MUI! So it is safe to assume that you should have it
installed before you try to run Xv! (2.2+ as found on aminet)

TP

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 1996    4252  46.9% -lh5- 3e45 Sep 15  1995 xv219/HISTORY
[generic]                  541    1122  48.2% -lh5- 0515 Oct 31  1995 xv219/other/AmigaDefaults
[generic]                 6500   21578  30.1% -lh5- 9a1c Jan 30  1995 xv219/other/rgb.txt
[generic]                  695    1846  37.6% -lh5- 4fe6 Jun 28  1995 xv219/other/XV_AGA.info
[generic]                  629    3574  17.6% -lh5- 300b Jun 28  1995 xv219/other/xv_mwb.info
[generic]                  414     982  42.2% -lh5- 5089 Jun 28  1995 xv219/other/xv_wb4.info
[generic]               376808  894656  42.1% -lh5- ad95 Oct 25  1995 xv219/xv
[generic]                  542    2429  22.3% -lh5- 1a63 Jul 26  1995 xv219/xv.info
[generic]                 1274    2345  54.3% -lh5- d32e Nov  7  1995 xv219/xv219.readme
[generic]                  285     515  55.3% -lh5- 59c1 Jul 26  1995 xv219/xv219.readme.info
[generic]                 1926    3910  49.3% -lh5- 81d8 Nov  7  1995 xv219/docs/amiga.readme
[generic]                 1545    3230  47.8% -lh5- 8420 Aug 11  1995 xv219/docs/LIBX11.readme
[generic]                  281     515  54.6% -lh5- 280f Jun 28  1995 xv219/docs/LIBX11.readme.info
[generic]                  258     482  53.5% -lh5- 940f Jun 28  1995 xv219/docs/readme.mui.info
[generic]                 1515    2772  54.7% -lh5- e46c Nov  7  1995 xv219/docs/WorthALook.readme
[generic]                  284     515  55.1% -lh5- e57c Jul 26  1995 xv219/HISTORY.info
[generic]                  560    2273  24.6% -lh5- 6f7b Jul 26  1995 xv219/other.info
[generic]                86851  242200  35.9% -lh5- e565 Apr 27  1995 xv219/xv.guide
[generic]                  238     464  51.3% -lh5- 92c6 Jul 26  1995 xv219/xv.guide.info
[generic]                  562    2273  24.7% -lh5- 2f23 Jun 28  1995 xv219.info
[generic]                  561    2273  24.7% -lh5- 5381 Jul 26  1995 xv219/docs.info
[generic]                  282     515  54.8% -lh5- 2528 Jun 28  1995 xv219/docs/amiga.readme.info
[generic]                 3189    6972  45.7% -lh5- 7849 Jan 30  1995 xv219/docs/README
[generic]                  287     515  55.7% -lh5- 5de0 Jun 28  1995 xv219/docs/README.info
[generic]                  485     970  50.0% -lh5- cfad Oct 23  1994 xv219/docs/readme.mui
[generic]                  282     515  54.8% -lh5- a5d7 Jun 28  1995 xv219/docs/WorthALook.readme.info
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        26 files  488790 1203693  40.6%            Jan  9  1997