Invention Grant
US07791764B2 Image processing method and apparatus, image reading apparatus, and image forming apparatus detecting plural types of images based on detecting plural types of halftone dot areas
有权
图像处理方法和装置，图像读取装置和图像形成装置，其基于检测多种类型的半色调点区域来检测多种图像
- Patent Title: Image processing method and apparatus, image reading apparatus, and image forming apparatus detecting plural types of images based on detecting plural types of halftone dot areas
- Patent Title (中): 图像处理方法和装置，图像读取装置和图像形成装置，其基于检测多种类型的半色调点区域来检测多种图像
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Application No.: US11520976Application Date: 2006-09-13
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Publication No.: US07791764B2Publication Date: 2010-09-07
- Inventor: Kazuhisa Kubota
- Applicant: Kazuhisa Kubota
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Edwards Angell Palmer & Dodge LLP
- Agent David G. Conlin; Peter J. Manus
- Priority: JP2005-266987 20050914; JP2006-182721 20060630
- Main IPC: H04N1/40
- IPC: H04N1/40 ; H04N1/403
Abstract:
An image processing apparatus includes an automatic document type discrimination section for estimating a type of input image data. The automatic document type discrimination section is capable of detecting whether each of plural types of halftone dot areas exists or not in the image data, and the automatic document type discrimination section estimates the type of the image data. Therefore, the image processing apparatus can exactly estimate the type of the image.
Public/Granted literature
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