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:
Aug. 28, 2012
Filed:
Feb. 17, 2009
Takayuki Suzuki, Machida, JP;
Takayuki Suzuki, Machida, JP;
Abstract
An image compression apparatus includes: a dividing section for dividing an image to be compressed into blocks; a discrimination section for determining whether the divided block is a first kind block, in which an outline portion of the image is not included and a difference between the maximum gradation value and the minimum gradation value of the block is equal to or greater than a reference value; and a normalization output section which divides a distribution range of gradation values depending on the discrimination result with respect to the block and outputs compressed data containing code data for showing to which area in the divided distribution rage, each pixel in each block belongs, the maximum value and the minimum value; wherein the normalization output section arranges the maximum value and the minimum value related to the block in a different order depending on whether the first kind block or not.