LERP(9.1) LERP(9.1)
NAME
lerp - linear combinations of images
SYNOPSIS
fb/lerp file fraction ... [ file ]
DESCRIPTION
Lerp computes a linear combination of a number of input
images. Each input file name is followed by a floating-
point fraction by which to scale its pixel values. The
fraction after the last image may be omitted, in which case
one minus the sum of the other fractions is used. The
result image is written to standard output.
Nothing prevents the fractions from being smaller than zero
or larger than one. Output pixel values that fall below
zero or above 255 are clamped.
SEE ALSO
picfile(9.6)
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