公开(公告)号：US5761338A

公开(公告)日：1998-06-02

申请号：US535644

申请日：1995-09-28

申请人： Toru Kasamatsu

发明人： Toru Kasamatsu

IPC分类号： G03G21/00 ,  G03G15/01 ,  G03G15/36 ,  G06T5/00 ,  H04N1/407 ,  G06K9/36

CPC分类号： G06T7/0081 ,  G06T2207/10008 ,  G06T2207/20144 ,  G06T2207/30176

摘要： An image detection and background processing device and method having a image reader for reading a whole document and converting the read document to a digital image data of multi value. The image forming apparatus detects the density of a background in the document based on the digital image data obtained by the image reader, sets a reference value based on the background density as well as the distribution of the digital image data, and distinguishes an image area of the document from the background by comparing the reference value and the image data so as to execute a process concerning the distinguished image area (for example, an automatic magnification selection process or an automatic paper selection process). The apparatus and method includes analysis capability for determining whether the background area can be accurately discriminated from the image area based on image data.

摘要翻译： 一种图像检测和后台处理装置和方法，具有用于读取整个文档并将读取的文档转换为多值的数字图像数据的图像读取器。 图像形成装置基于由图像读取器获得的数字图像数据来检测文档中的背景的浓度，基于背景浓度以及数字图像数据的分布设置参考值，并且区分图像区域 通过比较参考值和图像数据从而从背景中执行文档，以便执行与区别图像区域有关的处理（例如，自动选择放大率选择处理或自动纸张选择处理）。 该装置和方法包括基于图像数据确定背景区域是否能够与图像区域精确区分的分析能力。