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:
Nov. 06, 2007
Filed:
Oct. 14, 2003
Yusuke Monobe, Kadoma, JP;
Tatsumi Watanabe, Moriguchi, JP;
Yasuhiro Kuwahara, Osaka, JP;
Akio Kojima, Neyagawa, JP;
Toshiharu Kurosawa, Yokohama, JP;
Yusuke Monobe, Kadoma, JP;
Tatsumi Watanabe, Moriguchi, JP;
Yasuhiro Kuwahara, Osaka, JP;
Akio Kojima, Neyagawa, JP;
Toshiharu Kurosawa, Yokohama, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An image processing apparatus for performing filter processing on a decoded image that is obtained by decoding compressed data obtained by coding a multi-valued image by the block of M×N pixels so as to eliminate noises and generating a reconstructed image. The image processing apparatus includes: a differential value calculation unit operable to calculate a differential value between a pixel value of a current pixel and each one of pixel values of peripheral pixels in a filter processing area that is predetermined for each pixel that forms the decoded image, a distribution coefficient calculation unit operable to calculate distribution coefficients as to the pixel values of the pixels, a filter coefficient calculation unit operable to calculate the filter coefficients as to the peripheral pixels based on the differential values calculated by the differential value calculation unit and the distribution coefficients calculated by the distribution coefficient calculation unit, a filter processing unit operable to perform filter processing as to the pixel value of the current pixel in the decoded image using the filter coefficient that is calculated by the filter coefficient calculation unit and calculate the pixel value of the current pixel in the reconstructed image.