@book{26194,
	author = {Urbach, John, ed.},
	title = {Image Processing},
	publisher = {SPIE},
	year = {1976},
	series = {Proceedings of SPIE; V. 0074},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/0074}
}