发明授权
US08023731B2 Apparatus and method for histogram analysis of image and luminance compensation apparatus using the same
有权
用于使用其的图像和亮度补偿装置的直方图分析的装置和方法
- 专利标题: Apparatus and method for histogram analysis of image and luminance compensation apparatus using the same
- 专利标题(中): 用于使用其的图像和亮度补偿装置的直方图分析的装置和方法
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申请号: US11636905申请日: 2006-12-11
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公开(公告)号: US08023731B2公开(公告)日: 2011-09-20
- 发明人: Jung-Hoon Park , Young-Min Jeong , Sung-Dae Cho , Yun-Je Oh
- 申请人: Jung-Hoon Park , Young-Min Jeong , Sung-Dae Cho , Yun-Je Oh
- 申请人地址: KR Suwon-si, Gyeonggi-do, Korea
- 专利权人: Samsung Electronics Co., Ltd
- 当前专利权人: Samsung Electronics Co., Ltd
- 当前专利权人地址: KR Suwon-si, Gyeonggi-do, Korea
- 代理机构: Cha & Reiter, LLC
- 优先权: KR10-2006-0012144 20060208
- 主分类号: G06K9/00
- IPC分类号: G06K9/00
摘要:
Disclosed is an apparatus and method for analyzing a histogram of an image, the apparatus comprising an image input module for buffering an input image, a block calculator for performing a blocking operation for dividing the image into pixel blocks of a predetermined size, and extracting and outputting a representative pixel of each block obtained in a corresponding blocking, a probability density function (PDF) operator for calculating a first histogram using all pixels of the image, and calculating a second histogram using the representative pixels input from the block calculator, and an image characteristic comparator for receiving the first and second histograms determining whether the received histograms satisfy an identity criterion and calculating a third histogram of a following image when the identity criterion is satisfied.