公开(公告)号：US20180077321A1

公开(公告)日：2018-03-15

申请号：US15584300

申请日：2017-05-02

申请人： FUJI XEROX CO., LTD.

发明人： Yurie ISHIKAWA ,  Noriko ARAI ,  Kenji UEDA ,  Chihiro MATSUGUMA ,  Tatsuya NAMIKI

IPC分类号： H04N1/60 ,  H04N1/21 ,  G06K9/46 ,  H04N1/393

CPC分类号： H04N1/6008 ,  G06K9/4652 ,  H04N1/2166 ,  H04N1/3935 ,  H04N1/6027

摘要： An image processing apparatus includes an extraction unit, a memory controller, and a transfer unit. The extraction unit extracts, on the basis of image information, pieces of color information having a high frequency of occurrence as color information that is necessary to perform image processing. The memory controller causes a first memory to store a color information group including the pieces of color information extracted by the extraction unit. The transfer unit transfers the color information group from the first memory to a second memory, an access time of the second memory being shorter than an access time of the first memory.

公开(公告)号：US20190246010A1

公开(公告)日：2019-08-08

申请号：US16211249

申请日：2018-12-06

申请人： FUJI XEROX CO., LTD.

发明人： Noriko ARAI ,  Shinji HANAOKA ,  Chihiro MATSUGUMA ,  Tatsuya NAMIKI ,  Yurie ISHIKAWA

IPC分类号： H04N1/60 ,  H04N1/32

CPC分类号： H04N1/6027 ,  H04N1/32368 ,  H04N1/32475 ,  H04N1/6008

摘要： An image processing apparatus includes: a gradation correction section that performs output gradation correction with respect to input multi-value image data; a conversion section that converts the multi-value image data, which is acquired after the output gradation correction is performed by the gradation correction section, into binary image data; a storage section that stores the multi-value image data or the binary image data; and a control section that performs control such that the multi-value image data, which is acquired before the output gradation correction is performed, is stored in the storage section in a case where content of the input image data is content which requires the output gradation correction, and such that the binary image data is stored in the storage section in a case where the content of the input image data is content which does not require the output gradation correction.

公开(公告)号：US20170280017A1

公开(公告)日：2017-09-28

申请号：US15251891

申请日：2016-08-30

申请人： FUJI XEROX CO., LTD.

发明人： Tatsuya NAMIKI ,  Chihiro MATSUGUMA ,  Noriko ARAI ,  Kenji UEDA ,  Yurie ISHIKAWA

IPC分类号： H04N1/409 ,  H04N1/407 ,  H04N1/00

CPC分类号： H04N1/4097 ,  H04N1/00013 ,  H04N1/00037 ,  H04N1/00084 ,  H04N1/00092 ,  H04N1/403 ,  H04N1/407 ,  H04N1/4072 ,  H04N1/4092 ,  H04N2201/0081

摘要： An image reading apparatus includes an image data obtaining unit, a foreign material position information obtaining unit, and a separation processor. The image data obtaining unit obtains image data read from a document passing over a read area. The foreign material position information obtaining unit obtains foreign material position information read from the read area in which the document is not present. The separation processor separates the image data into plural objects including a background object, detects, by using the foreign material position information, a streak image portion caused by foreign material in the read area and included in the image data, and assumes a pixel of the streak image portion to belong to the background object if the pixel is present in the background object and has a pixel value equal to or smaller than a threshold determined in accordance with a representative value of the background.

公开(公告)号：US20140362389A1

公开(公告)日：2014-12-11

申请号：US14140181

申请日：2013-12-24

申请人： FUJI XEROX CO., LTD.

发明人： Tatsuya NAMIKI ,  Hiroshi HAYASHI ,  Toshiyuki YAMADA ,  Kenji UEDA ,  Hiroshi NIINA

IPC分类号： G06K15/02

CPC分类号： G06K15/1878 ,  G06K15/1868 ,  H04N1/4072 ,  H04N1/6005 ,  H04N1/6027

摘要： Provided is an image processing apparatus including a ground color detecting unit that detects ground color information indicating a ground color from input first image data, a storage control unit that causes a storage unit to store a history of the ground color information detected by the ground color detecting unit, a setting unit that sets a first threshold value that is a reference of the ground color on the basis of a representative value of first ground color information indicating a first ground color included in the history stored in the storage unit, and a ground color removing unit that performs a ground color removal process for input second image data on the basis of the first threshold value set by the setting unit.

摘要翻译： 提供一种图像处理装置，包括：地色检测单元，其从输入的第一图像数据检测表示地面颜色的地面颜色信息;存储控制单元，其使存储单元存储由地面颜色检测的地面颜色信息的历史 检测单元，设置单元，其基于表示存储在存储单元中的历史中包含的第一地面颜色的第一地面颜色信息的代表值和地面来设置作为地面颜色的参考的第一阈值; 颜色去除单元，其基于由设置单元设置的第一阈值来执行用于输入的第二图像数据的地面颜色去除处理。