remap(9) [plan9 man page]

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 standard input), in the colormap, writing the resulting rgb image to
       standard 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)

PCP(9.1)																  PCP(9.1)

NAME

       pcp - copy pictures

SYNOPSIS

       fb/pcp [ -wx0 y0 x1 y1 ] [ -ox y ] [ -ttype ] [ -cchannels ] [ -Cchannels ] [ -mcolormap ] [ -M ] [ input [ output ] ]

DESCRIPTION

       Pcp  copies  the  input	picture (default standard input) to the output file (default standard output).	Options control the attributes and
       content of the output picture.

       -w x0 y0 x1 y1
	      causes only the given window of the input picture to be copied.  By default the whole picture is copied.

       -o x y causes the output picture's WINDOW= attribute to be translated by adding (x,y) to the input window coordinates.

       -t type
	      sets the TYPE= attribute of the output file.  The default is to use the input file's type.

       -c channels
	      causes only the given channels of the input picture to be copied.  The default is to copy all channels.  If channels not present	in
	      the  input  picture  are specified, they are computed in the ``most plausible'' way.  For example, a missing alpha channel is set to
	      255, and an m channel will be synthesized from rgb channels by computing NTSC luminance.	A 0 in channels causes a zero  channel	to
	      be written.

       -C channels
	      sets the output CHAN= attribute.	Channels must be the same length as the selected channels of the input picture.

       -m colormap
	      attaches the given color map to the output.

       -M     elides the color map from the output.

SOURCE

       /sys/src/fb/pcp.c

SEE ALSO

       picfile(9.6), cmap(9.6)

																	  PCP(9.1)