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. 26, 1995
Filed:
Feb. 09, 1994
Makoto Matsushima, Minoo, JP;
Ryo Fukui, Toyonaka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image processing apparatus includes: a first transforming device for transforming encoded data into discrete cosine transform coefficient data segmented into processing blocks, each block being formed of a matrix of m.times.n pixels; and a setting device for setting the values of M and N defining the size of a matrix forming each processing block used in inverse discrete cosine transform. The image processing apparatus also includes a data preparing circuit for adding discrete cosine transform coefficient data to, or deleting discrete cosine transform coefficient data from, a high-frequency domain of the discrete cosine transform coefficient data and segmented into processing blocks, each block being formed of a matrix of m.times.n pixels, and for preparing discrete cosine transform coefficient data segmented into processing blocks, each block being formed of a matrix of M.times.N pixels; a second transforming device for subjecting the discrete cosine transform coefficient data prepared by the data preparing circuit to inverse discrete cosine transform, so that image data can be output; and an outputting device for outputting image data output from the second transforming device and segmented into processing blocks as continuous image data.