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公开(公告)号：US20170257528A1
公开(公告)日：2017-09-07
申请号：US15443440
申请日：2017-02-27
发明人： Hideya Muramoto
CPC分类号： H04N1/58 , H04N1/4092
摘要： An image forming apparatus includes an image area determining unit and an image processing unit. The image area determining unit is configured to determine a character edge area and a character inside area in an input image. The image processing unit is configured to be capable of performing (a) an inward expansion process for a pixel belonging to the image inside area, the character expansion process performed inwardly from the character edge area and (b) an outward expansion process for a pixel belonging to the character edge area, the outward expansion process performed outwardly from the character inside area. Further, the image processing unit selects the inward expansion process and/or the outward expansion process in accordance with an average brightness value of pixels belonging to the character inside area, and performs the selected the inward expansion process and/or the outward expansion process.
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公开(公告)号：US10382653B2
公开(公告)日：2019-08-13
申请号：US15552488
申请日：2016-02-17
发明人： Hideya Muramoto
摘要： The character edge area determining unit (21) determines a character edge area in input image data.The output image processing unit (12) performs an image process for a target pixel in the determined character edge area in order to adjust a toner consumption amount in accordance with the number of continuous edge pixels (i.e. continuous pixels that belong to the character edge area) included in a reference window of which a center is set on the target pixel and an average value of pixel values of the continuous edge pixels.
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3.发明授权Image processing device, image forming apparatus, and image processing method 有权图像处理装置，图像形成装置和图像处理方法公开(公告)号：US09241081B2
公开(公告)日：2016-01-19
申请号：US14142453
申请日：2013-12-27
发明人： Hideya Muramoto , Kunihiko Tanaka
CPC分类号： H04N1/00278 , H04N1/46 , H04N1/48 , H04N1/50
摘要： An image processing device includes a mode instruction information obtaining section, a color determination threshold storage section, a mode determination section, and an automatic color determination threshold adjustment section. The mode determination section, using a color determination threshold, determines a mode to be a color mode when the image data belongs to a color mode range, and determines the mode to be a monochrome mode when the image data belongs to a monochrome mode range. The automatic color determination threshold adjustment section adjusts the color determination threshold so as to widen a mode range corresponding to the mode determined by the mode determination section, when the mode indicated by the instruction information obtained by the mode instruction information obtaining section is different from the mode determined by the mode determination section.
摘要翻译： 一种图像处理装置包括模式指令信息获取部分，颜色确定阈值存储部分，模式确定部分和自动颜色确定阈值调整部分。 当图像数据属于彩色模式范围时，使用颜色确定阈值的模式确定部确定作为颜色模式的模式，并且当图像数据属于单色模式范围时，确定模式为单色模式。 当由模式指令信息获取部分获得的指令信息指示的模式与模式指令信息获取部分所获得的模式不同时，自动颜色确定阈值调整部分调整颜色确定阈值以便扩大与由模式确定部分确定的模式相对应的模式范围 模式由模式确定部确定。
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公开(公告)号：US10038823B2
公开(公告)日：2018-07-31
申请号：US15443440
申请日：2017-02-27
发明人： Hideya Muramoto
CPC分类号： H04N1/58 , H04N1/4092
摘要： An image forming apparatus includes an image area determining unit and an image processing unit. The image area determining unit is configured to determine a character edge area and a character inside area in an input image. The image processing unit is configured to be capable of performing (a) an inward expansion process for a pixel belonging to the image inside area, the character expansion process performed inwardly from the character edge area and (b) an outward expansion process for a pixel belonging to the character edge area, the outward expansion process performed outwardly from the character inside area. Further, the image processing unit selects the inward expansion process and/or the outward expansion process in accordance with an average brightness value of pixels belonging to the character inside area, and performs the selected the inward expansion process and/or the outward expansion process.
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5.发明授权Image processing apparatus that ensures monochrome output on color document including fluorescent color while maintaining reading operation speed and image processing speed, image processing method, image forming apparatus, and recording medium 有权图像处理装置，其保持彩色文档上的单色输出，包括荧光颜色，同时保持读取操作速度和图像处理速度，图像处理方法，图像形成装置和记录介质公开(公告)号：US09538047B2
公开(公告)日：2017-01-03
申请号：US14946128
申请日：2015-11-19
发明人： Hideya Muramoto
CPC分类号： H04N1/6094 , H04N1/00803 , H04N1/40012 , H04N1/40062 , H04N1/40093 , H04N1/4074 , H04N2201/0094
摘要： An image processing apparatus includes a single-color image reading circuit and a fluorescent color area extracting circuit. The single-color image reading circuit reads an image on a document to create single-color image data. The fluorescent color area extracting circuit extracts a fluorescent color area included in the single-color image data based on pixel values of respective pixels constituting the single-color image data created by the single-color image reading circuit.
摘要翻译： 图像处理装置包括单色图像读取电路和荧光颜色区域提取电路。 单色图像读取电路读取文档上的图像以创建单色图像数据。 荧光颜色区域提取电路基于构成由单色图像读取电路产生的单色图像数据的各个像素的像素值，提取包含在单色图像数据中的荧光颜色区域。
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