| .TH SINES 1 "27 January 1992" |
| .SH NAME |
| sines, squares \- creates a spatial sine or square wave form |
| .SH SYNOPSIS |
| .B sines image xsize ysize horfreq verfreq |
| |
| .B squares image xsize ysize horfreq verfreq |
| .SH DESCRIPTION |
| .B 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. |
| |
| .B squares |
| creates an one band unsigned cahr image by thresholding a sine waveform. |
| .SH SEE\ ALSO |
| grey(1), im_sines(3X), squares(1). |
| .SH COPYRIGHT |
| .br |
| N. Dessipris |
| .SH AUTHOR |
| N. Dessipris \- 27/02/1992 |
