NAME
sines, squares - creates a spatial sine or square wave
form
SYNOPSIS
sines image xsize ysize horfreq verfreq
squares image xsize ysize horfreq verfreq
DESCRIPTION
sines creates an one band unsigned char
image of the a sine waveform in two dimensions. The sizes of the
created image are xsize by ysize. The number of horizontal and
vertical spatial frequencies are determined by the variables
horfreq and verfreq respectively.
squares creates an one band unsigned cahr image by
thresholding a sine waveform.
SEE ALSO
grey(1),
im_sines(3X),
squares(1).
COPYRIGHT
N. Dessipris
AUTHOR
N. Dessipris - 27/02/1992