The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 1985
Filed:
Feb. 27, 1984
Robert M Lougheed, Ann Arbor, MI (US);
Environmental Research Institute of MI, Ann Arbor, MI, US;
Abstract
A neighborhood transformation stage is designed to perform filtering operations on an image matrix. A group of pixel values in the image matrix are accessed. A series of comparators are used to compare the values of neighboring pixels with the value of a given pixel in the group. The outputs of the comparators are combined to form a vector to address a programmable look-up table. The addressed output of the look-up table is used as a control signal for a selector which either maintains the value of the given pixel or transforms it into another value associated with a neighboring pixel whose value has been ranked in a predetermined order by a rank sorter device used to compare the values of the neighboring pixels with each other.