Invention Grant
US07949201B2 Image correction processing system and image correction processing method 有权
图像校正处理系统和图像校正处理方法

  • Patent Title: Image correction processing system and image correction processing method
  • Patent Title (中): 图像校正处理系统和图像校正处理方法
  • Application No.: US11574516
    Application Date: 2005-09-01
  • Publication No.: US07949201B2
    Publication Date: 2011-05-24
  • Inventor: Tetsuaki Suzuki
  • Applicant: Tetsuaki Suzuki
  • Applicant Address: JP Tokyo
  • Assignee: NEC Corporation
  • Current Assignee: NEC Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Dickstein Shapiro LLP
  • Priority: JP2004-254901 20040901
  • International Application: PCT/JP2005/015995 WO 20050901
  • International Announcement: WO2006/025486 WO 20060309
  • Main IPC: G06K9/40
  • IPC: G06K9/40 G06K9/20
Image correction processing system and image correction processing method
Abstract:
An image processing system includes a local area selecting section configured to select a local area as at least one correction target from an input image, the local area including at least one pixel; a correction amount calculating section configured to calculate a gradation correction amount for the local area as the correction target; and a local gradation correcting section configured to perform a gradation correction to correct a gradation value of the local area based on the gradation correction amount to generate an image with a local gradation correction. Also, the correction amount calculating section includes a peripheral area gradation value calculating section configured to calculate a gradation value of a peripheral area of the local area; and a local area correction amount converting section configured to calculate the gradation correction amount by using the calculated gradation value of the peripheral area.
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