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Pamgradient User Manual(0)					       Pamgradient User Manual(0)

NAME
       pamgradient - create a four-corner gradient PAM image

SYNOPSIS
       pamgradient [-maxval=maxval] color-tl color-tr color-bl color-br width height

       Minimum	unique	abbreviation of option is acceptable.  You may use double hyphens instead
       of single hyphen to denote options.  You may use white space in place of the  equals  sign
       to separate an option name from its value.

DESCRIPTION
       This program is part of Netpbm(1)

       pamgradient  creates an image of the specified dimensions width by height which contains a
       smooth, two-dimensional gradient between the specified colors of the  four  corners  (from
       top left to bottom right).

       Specify	the  colors as described for the argument of the ppm_parsecolor() library routine
       <libppm.html#colorname> .

       If all four colors are gray values, pamgradient creates a grayscale image (PAM tuple  type
       GRAYSCALE).  Otherwise, it creates a color image (PAM tuple type RGB).

OPTIONS
       -maxval=maxval

	      maxval of the generated image.  (See PAM(1)
	       and PNM(1)
	       specifications).

SEE ALSO
       pamgradient(1) , ppmmake(1) , ppmrainbow(1) , pgmramp(1) , ppmpat(1) , pam(1) , pnm(1)

NOTE
       Only  the  top  left  corner  of the generated image has exactly the specified color.  The
       color of the top right corner is a bit shifted to the left, the bottom left corner  a  bit
       up,  and the bottom right corner left and up. This ensures nice transitions when combining
       adjacent (very narrow) gradients, and doesn't play a role when the gradient butts  against
       a solid surface.

       This  effect  is created by the integer arithmetic used for the interpolation of the color
       values, and since it doesn't make a difference for all practical purposes I might as  well
       sell it as a feature.

HISTORY
       pamgradient was new in Netpbm 10.31 (December 2005).

AUTHOR
       pamgradient was written by Daniel Haude in October 2005.

netpbm documentation			 21 October 2005	       Pamgradient User Manual(0)
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