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:
Oct. 02, 2012
Filed:
Dec. 13, 2007
Barinder Singh Rai, Surrey, CA;
Barinder Singh Rai, Surrey, CA;
Seiko Epson Corporation, Tokyo, JP;
Abstract
Systems and methods for efficiently applying a filter to image data are disclosed. For efficiently applying the filter, a filter type including coefficient values for each pixel in the image data is identified. A sub-matrix corresponding to the size of the filter is selected in the image data. The sub-matrix includes the plurality of pixels that can be represented in a 2form. Each coefficient value is a number that is in a 2form. The system calculates an average value of multiplications of pixel values with the corresponding coefficient values of each of the plurality of pixels. The multiplication of a pixel value and corresponding coefficient value is calculated by shifting a binary representation of the pixel value M bits, and a division to calculate the average value is performed by shifting a binary representation of a sum of the multiplications N bits. The average value is then applied to the center pixel. The process is repeated by selecting a new sub-matrix until the end of the image data is reached.