invert_raw_image(1) [debian man page]

INVERT_RAW_IMAGE(1)					      General Commands Manual					       INVERT_RAW_IMAGE(1)

NAME

       invert_raw_image - invert 2D image along either or both axes

SYNOPSIS

       invert_raw_image xsize xsize [bytesperpixel]

DESCRIPTION

       invert_raw_image  reads	an image from standard input and copies it to standard output, inverting along either or both dimensions according
       to the arguments.

       The parameter xsize specifies the number of pixels in the x-direction.  Use a negative number to flip the image along this axis.  Ditto for
       ysize.  The number of bytes per pixel defaults to 1 if not specified.

															       INVERT_RAW_IMAGE(1)

PSIGN(1)						      General Commands Manual							  PSIGN(1)

NAME

       psign - produce a RADIANCE picture from text.

SYNOPSIS

       psign [ options ] [ text ]

DESCRIPTION

       Psign produces a RADIANCE picture of the given text.  The output dimensions are determined by the character height, aspect ratio, number of
       lines and line length.  (Also the character size if text squeezing is used.)  If no text is given, the standard input is read.

       -cb r g b Set the background color to r g b The default is white (1 1 1).

       -cf r g b Set the foreground color to r g b The default is black (0 0 0).

       -dr	 Text reads to the right (default).

       -du	 Text reads upwards.

       -dl	 Text reads to the left (upside down).

       -dd	 Text reads downwards.

       -h cheight
		 Set the character height to cheight.  The default is 32 pixels.

       -a aspect Set the character aspect ratio (height/width) to aspect.  The default value is 1.67.

       -x xsize  Set the horizontal image size to xsize.  Use with -y option (below) in place of the -h specification to control output image size
		 directly.   If  the character aspect ratio (-a option, above) is non-zero, then one of the specified x or y output dimensions may
		 be reduced to maintain this ratio.  If direction is right (-dr) or left (-dl), then it is not necessary to give  the  -y  option,
		 since it can be computed from the character height (-h).

       -y ysize  Set the vertical image size to ysize.	Use with the -x option (described above).  If direction is up (-du) or down (-dd), then it
		 is not necessary to give the -x option, since it can be computed from the character height (-h).

       -s spacing
		 Set the intercharacter spacing to spacing.  The magnitude of this value is multiplied by the character  height  over  the  aspect
		 ratio	(ie.  the character width) to compute the desired distance between characters in the output.  The sign of the value, posi-
		 tive or negative, determines how this ideal spacing is used in the actual placement of characters.  If spacing is positive,  then
		 the  overall  width  of  the  line will not be affected, nor will indentation of textual elements.  Thus, the text format will be
		 mostly unaffected.  However, spacing between characters will reflect their relative size for a more natural appearance.  If spac-
		 ing is negative, characters will be squeezed together to meet the spacing critereon, regardless of how it might affect the format
		 of the output.  The default value for spacing is zero, which is interpreted as uniformly spaced characters.

       -f fontfile
		 Load the font from fontfile.  The default font is helvet.fnt

EXAMPLE

       To put a big "Hi!" on the terminal:

	 psign -h 22 -a 1 -cb 0 0 0 -cf 1 1 1 Hi! | ttyimage

ENVIRONMENT

       RAYPATH	      path to search for font files

AUTHOR

       Greg Ward

BUGS

       The entire bitmap is stored in memory, which can be a problem for large and/or high-resolution signs.

SEE ALSO

       getinfo(1), pcompos(1), pfilt(1), ttyimage(1)

RADIANCE
							      10/9/97								  PSIGN(1)