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. 01, 2009
Filed:
Jan. 30, 2004
Hiroshi Kakii, Tokyo, JP;
Hiroshi Kakii, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image processing apparatus that is capable of presenting a general overview of the contents of an original image from its corresponding scrambled image is disclosed. The image processing apparatus applies a discrete wavelet transform to a pixel value of each of at least one rectangular region into which image data are divided and hierarchically compresses the image data into a compressed code stream. Then the image processing apparatus performs a scrambling process on compressed code within the compressed code stream that is of a level corresponding to a high resolution image component and refrains from performing the scrambling process on compressed code other than that of the level corresponding to the high resolution image component.