Op Art Computerised

robbins02

Here an op art picture by Jeffry Steele (which appeared in Time magazine in 1961) was turned into a subroutine in an investigation of some perspective properties, without actually going through the perspective transformation. Arguments to the subroutine consisted of the length and height, the number of spikes per side, the number of bands, the interior rotation etc.

[Source: Computers and Automation '68]