公开(公告)号：US07085013B2

公开(公告)日：2006-08-01

申请号：US10662415

申请日：2003-09-16

申请人： Shinji Yamakawa

发明人： Shinji Yamakawa

IPC分类号： H04N1/40 ,  H04N1/409 ,  G06T5/00 ,  G06T5/30

CPC分类号： H04N1/40062 ,  G06T5/20

摘要： An image processing apparatus includes a maximum/minimum density detecting unit which detects a center pixel of a matrix of N×N pixels in image data that has a maximum or minimum density. A determination unit determines whether the absolute value of a difference between an average of densities of diagonal pixels of the matrix and a density of the center pixel is larger than a threshold value. A peak pixel detecting unit detects peak pixels of the matrix, each peak pixel being the center pixel having a maximum or minimum density, and the absolute value of the difference with respect to the center pixel being larger than the threshold value. A dot region detecting unit detects one of neighboring pixels of the matrix as being a dot region based on the number of the peak pixels in a target region and the number of the peak pixels in each of neighboring regions.

公开(公告)号：US06965695B2

公开(公告)日：2005-11-15

申请号：US09832261

申请日：2001-04-10

申请人： Shinji Yamakawa

发明人： Shinji Yamakawa

IPC分类号： H04N1/409 ,  G06K9/48

CPC分类号： H04N1/409 ,  H04N1/4092

摘要： The quality of the reproduced image in separating the character portions and the areas near or surrounding the character portions has been improved. In particular, as the result of the character edge enhancement, the possibility for mistakenly processing white areas around the character edges has been substantially reduced and the correct detection rate for character edges in high line density areas has been substantially increased.

摘要翻译： 在分离字符部分和字符部分附近或周围的区域中的再现图像的质量已经得到改善。 特别地，作为字符边缘增强的结果，已经大大减少了错误地处理字符边缘周围的白色区域的可能性，并且已经大大增加了高线密度区域中字符边缘的正确检测率。

公开(公告)号：US20060256383A1

公开(公告)日：2006-11-16

申请号：US11491966

申请日：2006-07-25

申请人： Shinji Yamakawa

发明人： Shinji Yamakawa

IPC分类号： G06K15/00

CPC分类号： H04N1/40062 ,  H04N1/6072

摘要： An image-processing device applies a predetermined process to input image data so as to output the processed image data. The image-processing device comprises a medium-density detection unit, an expansion unit, and a non-character edge judgment unit. The medium-density detection unit detects a medium-density field of an image represented by the image data. The expansion unit applies an expansion process to the medium-density field detected by the medium-density detection unit. The non-character edge judgment unit judges the medium-density field applied with the expansion process by the expansion unit as a non-character edge field of the image represented by the image data.

公开(公告)号：US6014462A

公开(公告)日：2000-01-11

申请号：US885687

申请日：1997-06-30

申请人： Shinji Yamakawa

发明人： Shinji Yamakawa

IPC分类号： G06K9/20 ,  G06K9/38 ,  H04N1/40 ,  H04N1/409 ,  G06K9/00 ,  G06K9/34 ,  G06K9/48 ,  H04N1/38

CPC分类号： G06K9/00456 ,  G06K9/38 ,  H04N1/40062 ,  H04N1/4092

摘要： An image processing apparatus that distinguishes between alphanumeric symbols on a white background and those on a mesh pattern and performs individual image data processing includes an analog-to-digital converter for converting analog data to digital data, a first determiner for determining a region as a white picture element region when the region is composed of a predetermined white picture element and a plurality of white picture elements surrounding the predetermined white picture element in the digital data, a conditional variant setter for setting a conditional variant to white picture elements in the white picture element region, a potential thin line extractor for extracting a potential thin line pattern using a black picture element that has been corrected after being extracted from the digital data and a white picture element that has been corrected after being extracted from the digital data, and a second determiner for determining which one of an alphanumeric symbol on a white background, an alphanumeric symbol on a mesh pattern, and a design pattern is similar to the potential thin line pattern based on the conditional variant and the potential thin line pattern extracted by the potential thin line extractor, and for renewing the conditional variant based on a determination result of the second determiner.

摘要翻译： 一种区分白色背景上的字母数字符号和网格图案上的字母数字符号并执行单独图像数据处理的图像处理装置包括用于将模拟数据转换为数字数据的模数转换器，用于将区域确定为 当该区域由预定白色像素组成的白色像素区域和围绕数字数据中的预定白色像素的多个白色像素时，用于将条件变体设置为白色图像中的白色图像元素的条件变式设置器 元素区域，用于使用在从数字数据中提取之后已被校正的黑色像素提取潜在的细线图案的潜在细线提取器以及在从数字数据中提取之后被校正的白色图像元素，以及 用于确定aw上的字母数字符号中的哪一个的第二确定器 网格图案上的字母数字符号和设计图案类似于基于由潜在细线提取器提取的条件变体和潜在细线图案的潜在细线图案，并且用于基于 第二确定器的确定结果。

公开(公告)号：US5809366A

公开(公告)日：1998-09-15

申请号：US622285

申请日：1996-03-25

申请人： Shinji Yamakawa ,  Kazuhisa Otsubo

发明人： Shinji Yamakawa ,  Kazuhisa Otsubo

IPC分类号： H04N1/407 ,  H04N1/60 ,  G03G15/01

CPC分类号： H04N1/6011 ,  H04N1/407 ,  H04N1/6033

摘要： A method and system for adjusting or calibrating the colors output by an image processing system such as a full-color digital copier. After the copier is calibrated, the color balance standard within the copier is set using the calibration information. A portion of the image is printed by the copier in various tones, adjusted relative to the color balance standard. The user then selects the color balance of the image having the most acceptable color balance. Calibration of the copier can be performed by scanning a gray-scale image and adjusting the parameters controlling RGB data within the copier based on the gray-scale image which was scanned. In order to adjust the color balance for specific colors contained within an image, the user manually selects points on the image and frames having the selected color are printed, scanned, and the scanned information compared to stored color information in order to adjust the color balance to accurately reproduce the color selected by the user. As an alternative manner of performing color balance adjustment for colors of a user selected image, points on the image are sampled and a mosaic-type image printed having the sampled points. The mosaic image which has been printed is then scanned in order to perform a color adjustment process.

摘要翻译： 用于调整或校准由诸如全色数字复印机的图像处理系统输出的颜色的方法和系统。 复印机校准后，使用校准信息设置复印机内的色彩平衡标准。 图像的一部分由复印机以各种色调打印，相对于颜色平衡标准进行调整。 然后，用户选择具有最可接受的颜色平衡的图像的颜色平衡。 可以通过扫描灰度图像并根据扫描的灰度图像调整控制复印机内的RGB数据的参数来执行复印机的校准。 为了调整图像中包含的特定颜色的颜色平衡，用户手动选择图像上的点，并且打印，扫描具有所选颜色的帧，并将扫描信息与存储的颜色信息进行比较，以便调整颜色平衡 以准确地再现由用户选择的颜色。 作为对用户选择图像的颜色执行颜色平衡调整的替代方式，对图像上的点进行采样，并且打印具有采样点的马赛克型图像。 然后扫描已经印刷的马赛克图像，以进行颜色调整处理。

公开(公告)号：US5565993A

公开(公告)日：1996-10-15

申请号：US59286

申请日：1993-05-11

申请人： Shinji Yamakawa

发明人： Shinji Yamakawa

IPC分类号： G06T3/00 ,  G06T11/60 ,  H04N1/21 ,  H04N1/38 ,  H04N1/387 ,  H04N1/00

CPC分类号： H04N1/387

摘要： In an image processing apparatus, an image reading unit reads an original for each line in a main scanning direction and outputs image data of the original. A memory unit stores the image data, the memory unit having a storage capacity equal to at least one line in the main scanning direction. A control unit generates a write address and a read address of the storage unit so that the image data is written into a storage area specified by the write address and is read from a storage area specified by the read address. An output unit drives an output image from the image data read from the memory unit. A data erasing unit controls either the read address or the write address of the memory unit generated by the control unit so that unnecessary image data which is not required to be output is erased before the unnecessary image data is written into or read from the memory unit.

摘要翻译： 在图像处理装置中，图像读取单元沿主扫描方向读取每行的原稿，并输出原稿的图像数据。 存储单元存储图像数据，存储单元具有等于主扫描方向上的至少一行的存储容量。 控制单元产生存储单元的写入地址和读取地址，使得图像数据被写入由写入地址指定的存储区域中，并从读取地址指定的存储区域读取。 输出单元从从存储器单元读取的图像数据驱动输出图像。 数据擦除单元控制由控制单元生成的存储单元的读地址或写地址，使得在不需要的图像数据被写入存储器单元或从存储器单元读取之前擦除不需要输出的不必要的图像数据 。

公开(公告)号：US08538086B2

公开(公告)日：2013-09-17

申请号：US12805984

申请日：2010-08-27

申请人： Shinji Yamakawa

发明人： Shinji Yamakawa

IPC分类号： G06K9/00

CPC分类号： G06K9/036 ,  H04N1/00045 ,  H04N1/0005 ,  H04N1/00087 ,  H04N1/00092

摘要： An image inspection apparatus that compares a reference image with an inspection image obtained by scanning a printed medium on which the reference image has been printed, to determine whether the printed medium is acceptable is provided. The image inspection apparatus includes a first inspecting unit that compares the reference image exclusive of an edge in the reference image with the inspection image exclusive of an edge in the inspection image to perform inspection; a line-image detecting unit that detects a line image that contains the edge from each of the reference image and the inspection image; a second inspecting unit that compares the line image detected from the reference image with the line image detected from the inspection image to perform inspection; and a determining unit that determines whether the printed medium is acceptable based on results of these inspections.

摘要翻译： 一种图像检查装置，其将参考图像与通过扫描其上已经印刷了参考图像的打印介质获得的检查图像进行比较，以确定打印介质是否可接受。 图像检查装置包括：第一检查单元，其将除了参考图像中的边缘的参考图像与检查图像中除边缘之外的检查图像进行比较以进行检查; 线图像检测单元，其从所述参考图像和所述检查图像中的每一个检测包含所述边缘的行图像; 第二检查单元，将从参考图像检测的线图像与从检查图像检测到的线图像进行比较，以进行检查; 以及确定单元，其基于这些检查的结果来确定打印介质是否可接受。

公开(公告)号：US08374432B2

公开(公告)日：2013-02-12

申请号：US12480930

申请日：2009-06-09

申请人： Shinji Yamakawa

发明人： Shinji Yamakawa

IPC分类号： G06K9/34

CPC分类号： H04N1/40 ,  H04N1/40062

摘要： An image processing apparatus includes a scanner that receives image data, an area extracting unit that extracts image data of visually different image areas from the received image data, an HDD that stores therein the extracted image data, a criterion storage unit that stores a plurality of criteria for identifying each of the image areas as one of processing areas, a device interface unit that receives a selection of an image segmentation mode from a user, a selecting unit that selects a criterion from the criteria stored in the criterion storage unit based on the selected image segmentation mode, and a processing unit that identifies each of the image areas as one of the processing areas based on the selected image segmentation mode and performs image processing corresponding to the identified processing area.

摘要翻译： 图像处理装置包括：接收图像数据的扫描器，从接收到的图像数据中提取视觉上不同的图像区域的图像数据的区域提取单元，存储所提取的图像数据的HDD;存储多个 用于将每个图像区域识别为处理区域之一的标准，从用户接收图像分割模式的选择的设备接口单元，从基于存储在基准存储单元中的标准中选择标准的选择单元， 选择图像分割模式，以及处理单元，其基于所选择的图像分割模式将每个图像区域识别为处理区域之一，并且执行与所识别的处理区域相对应的图像处理。

公开(公告)号：US20100188714A1

公开(公告)日：2010-07-29

申请号：US12654632

申请日：2009-12-28

申请人： Shinji Yamakawa

发明人： Shinji Yamakawa

IPC分类号： H04N1/46

CPC分类号： B41F33/0036 ,  G06T7/001 ,  G06T7/90 ,  G06T2207/10024 ,  G06T2207/30144

摘要： An image inspection system inspects quality of image prepared from source image data by an image forming apparatus. The image inspection system includes a scanner, a storage unit, an inspection color designating unit, an inspection area determination unit, a reference color extraction unit, an inspection color extraction unit, and an image quality judgment unit. The scanner scans reference and inspection document to prepare reference and inspection image data. The inspection color designating unit designates an inspection color. The inspection area determination unit extracts an inspection area having the inspection color from the source image data. The reference color extraction unit extracts an image having first-extracted-color from the reference image data. The inspection color extraction unit extracts an image having a second-extracted-color from the inspection image data. The image quality judgment unit compares the first and second-extracted-colors to determine image quality of the inspection document image.

摘要翻译： 图像检查系统通过图像形成装置检查由源图像数据准备的图像的质量。 图像检查系统包括扫描仪，存储单元，检查颜色指定单元，检查区域确定单元，参考颜色提取单元，检查颜色提取单元和图像质量判断单元。 扫描仪扫描参考和检查文件，准备参考和检查图像数据。 检查颜色指定单元指定检查颜色。 检查区域确定单元从源图像数据提取具有检查色的检查区域。 参考色彩提取单元从参考图像数据中提取具有第一提取颜色的图像。 检查颜色提取单元从检查图像数据中提取具有第二提取颜色的图像。 图像质量判断单元比较第一和第二提取颜色以确定检查文档图像的图像质量。

公开(公告)号：US07663783B2

公开(公告)日：2010-02-16

申请号：US11491966

申请日：2006-07-25

申请人： Shinji Yamakawa

发明人： Shinji Yamakawa

IPC分类号： G06K15/00 ,  G06K9/40

CPC分类号： H04N1/40062 ,  H04N1/6072

摘要： An image-processing device applies a predetermined process to input image data so as to output the processed image data. The image-processing device comprises a medium-density detection unit, an expansion unit, and a non-character edge judgment unit. The medium-density detection unit detects a medium-density field of an image represented by the image data. The expansion unit applies an expansion process to the medium-density field detected by the medium-density detection unit. The non-character edge judgment unit judges the medium-density field applied with the expansion process by the expansion unit as a non-character edge field of the image represented by the image data.

摘要翻译： 图像处理装置对输入图像数据应用预定处理，以输出处理后的图像数据。 图像处理装置包括中密度检测单元，扩展单元和非字符边缘判断单元。 中密度检测单元检测由图像数据表示的图像的中等密度场。 扩展单元对由中密度检测单元检测的中密度场进行扩展处理。 非字符边缘判断单元将由扩展单元进行的扩展处理应用的中密度字段判断为由图像数据表示的图像的非字符边缘字段。