NAME

       gifclip  -  A  program  to  clip images in GIF files.  Only one image in a GIF file can be
       modified at a time.  Neither the image position on screen nor the screen size is  modified
       (use <a href="gifpos.html">gifpos

USAGE

       gifclip [-q] [-i Xmin Ymin Xmax Ymax] [-n n Xmin Ymin Xmax Ymax] [-c] [-h] gif-file

       If no gif-file is given, GifClip will try to read a GIF file from stdin.

MEMORY REQUIRED

       Line.

OPTIONS

       [-q]

               Quiet  mode.   Default  off on MSDOS, on under UNIX.  Controls printout of running
              scan lines.  Use -q- to invert.

       [-i Xmin Ymin Xmax Ymax]

               Clip first image to the dimensions as specified by the 4  coordinates  (Xmin  Ymin
              Xmax Ymax) of a box clipping region.

              For  example:  '-i  11  22 33 44' will crop the box from top left [11,22] to bottom
              right [33,44] out of the first image.

              If the first parameter is bigger than third one (Xmin >  Xmax)  they  are  swapped.
              Same for Y.

              The  dimensions  of  the clipped image must be confined to original image width and
              height.  Note the clipped image includes both the min & max boundary; an  image  of
              width W can have coordinates 0 to W-1 (zero based).

              Only one of -i or -n can be specified.

       [-n n Xmin Ymin Xmax Ymax]

               Same  as -i above but for the nth image: `-n 1 11 22 33 44' is exactly the same as
              the example in -i.  Only one of -i or -n can be specified.

       [-c]

               Complement.  This removes horizontal and/or  vertical  bands  of  the  image.  For
              example  `-c  -i  638  3  658  13'  would  remove  a horizontal band 11 pixels deep
              beginning at raster line 3, and a vertical band 21 pixels right beginning at  pixel
              658.

       [-h]

               Print one line of command line help, similar to Usage above.

              Note: all coordinates are 0-based --- the top left corner is (0, 0).

AUTHOR

       Gershon Elber

       Man  page  created  by  T.Gridel  <tgridel@free.fr>, originally written by Eric S. Raymond
       <esr@thyrsus.com>

                                           giflib-tools                                gifclip(1)