RT Journal Article SR Electronic T1 Digital Processing in Nuclear Medicine Imaging JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 21 OP 31 VO 14 IS 1 A1 Garcia, Ernest V. YR 1986 UL http://tech.snmjournals.org/content/14/1/21.abstract AB This is the first in a series of four Continuing Education articles on computers. After studying this article, the reader should be able to: 1) understand the basic operations of image filtering; and 2) discuss the use and merits of a variety of filtering techniques and functional images.