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REMAP(9.1)                                                          REMAP(9.1)



NAME
       cmap, remap - map colors

SYNOPSIS
       fb/cmap colormap [ input ]

       fb/remap colormap [ input ]

DESCRIPTION
       Cmap looks up the rgb channels of the input picture file (default stan-
       dard input), in the colormap, writing the resulting rgb image to  stan-
       dard output.  That is, cmap writes on its output the result of applying
       the colormap to the pixels of the input image.

       Remap is approximately the inverse of cmap.  Pixel values in the  input
       image  are  replaced  by those that, when mapped through the input col-
       ormap, come closest to reproducing the input image.  The output picture
       includes a copy of the colormap.

SOURCE
       /sys/src/fb/cmap.c
       /sys/src/fb/remap.c

SEE ALSO
       picfile(9.6)

BUGS
       Both commands work only if the input image contains rgb channels.



                                                                    REMAP(9.1)