公开(公告)号：US20120134580A1

公开(公告)日：2012-05-31

申请号：US13304471

申请日：2011-11-25

申请人： Yoshinori MURAKAMI ,  Makio Gotoh

发明人： Yoshinori MURAKAMI ,  Makio Gotoh

IPC分类号： G06K9/00

CPC分类号： H04N1/58

摘要： Unevenness in density (line noise) resulting from color misregistration among RGB components in a halftone region or a line screen region is suppressed. With respect to a document that is discriminated as a printed photo document or a text/printed photo document that includes black halftones by a document type discrimination section, or to a region segmented into a black halftone region by a segmentation section, a non-uniform image suppressing operation mode is executed. In the non-uniform image suppressing operation mode, a black generation and under color removal section does not carry out a black generation and under color removal process on a pixel in which a minimum value of the image data of the plurality of color components is at least equal to or less than a predetermined threshold.

摘要翻译： 抑制了半色调区域或线条屏幕区域中的RGB分量之间的颜色重合失调导致的密度不均匀（线噪声）。 对于被区分为打印的照片文件的文档或由文档类型识别部分包括黑色半色调的文本/打印照片文档或通过分割部分分割成黑色半色调区域的区域的文档，不均匀 执行图像抑制操作模式。 在不均匀的图像抑制操作模式中，黑色产生和底色去除部分不对多个颜色分量的图像数据的最小值处于的像素执行黑色生成和颜色去除处理 最小等于或小于预定阈值。

公开(公告)号：US08130410B2

公开(公告)日：2012-03-06

申请号：US12251256

申请日：2008-10-14

申请人： Makio Gotoh

发明人： Makio Gotoh

IPC分类号： H04N1/405

CPC分类号： H04N1/3935 ,  H04N1/405

摘要： The image processing apparatus executes a zoom process to an image data depending on a received zoom level, selects a dither matrix from a plurality of dither matrices each having a different resolution. The image processing apparatus selects a dither matrix that has a higher resolution in a case that the received zoom level is equal or less than a first zoom level to reduce the image data. Furthermore, the image processing apparatus selects a dither matrix that has a lower resolution in a case that the received zoom level is equal or more than a second zoom level to enlarge the image data.

摘要翻译： 图像处理装置根据接收到的缩放级别对图像数据执行缩放处理，从多个具有不同分辨率的抖动矩阵中选择抖动矩阵。 在接收到的缩放级别等于或小于第一缩放级别的情况下，图像处理装置选择具有较高分辨率的抖动矩阵以减少图像数据。 此外，图像处理装置选择在接收到的缩放级别等于或大于第二缩放级别的情况下具有较低分辨率的抖动矩阵，以放大图像数据。

公开(公告)号：US07518755B2

公开(公告)日：2009-04-14

申请号：US11253439

申请日：2005-10-18

申请人： Makio Gotoh ,  Kazuhisa Kubota

发明人： Makio Gotoh ,  Kazuhisa Kubota

IPC分类号： H04N1/405 ,  H04N1/60 ,  G06K9/46

CPC分类号： H04N1/40062

摘要： An image processing apparatus includes a document type automatic discrimination section that, based upon input image data read from a document, automatically discriminates a document type of the document. The document type automatic discrimination section, based upon plural types of parameters (quantity of halftone pixels, quantity of photographic-picture pixels, and quantity of high density pixels) obtained from plural types of characteristics (maximum density difference, total density busyness) extracted from the input image data and which parameters are used for discriminating a document type. A specific inkjet printed image whose output image data would not reach a standard level, if a process for a halftone reproduction region or a process for a continuous tone region were to be carried out on the input image data. This can improve the accuracy of document discrimination and the image quality of reproduced image.

摘要翻译： 一种图像处理装置包括：文档类型自动识别部，其基于从文档读取的输入图像数据，自动区分文档的文档类型。 基于从多个类型的特征（最大密度差，总密度繁忙度）中提取的多种类型的参数（半色调像素的数量，摄影像素的数量和高密度像素的数量）获得的文档类型自动识别部分 输入图像数据和哪些参数用于区分文档类型。 如果要对输入图像数据执行半色调再现区域的处理或连续色调区域的处理，则其输出图像数据将不能达到标准水平的特定喷墨打印图像。 这可以提高文档识别的精度和再现图像的图像质量。

公开(公告)号：US07502150B2

公开(公告)日：2009-03-10

申请号：US11137341

申请日：2005-05-26

申请人： Makio Gotoh ,  Gaku Furuichi

发明人： Makio Gotoh ,  Gaku Furuichi

IPC分类号： H04N1/46 ,  H04N1/60 ,  G03F3/08 ,  G06F15/00 ,  G06K1/00 ,  G06K9/00

CPC分类号： H04N1/6019

摘要： In a color converting device for converting input image data based on a plurality of first color components (the number of bits of each color component is k) into output image data based on plural of second color components by interpolation processing using a 3DLUT storing color correction values at grid points obtained by dividing a color space composed of the plurality of first color components, the distance of the grid points is 2n (where n is an integer smaller than k), the number Dn of grid points of the plurality of first color components is an integer satisfying 2m−1+1

摘要翻译： 在一种颜色转换装置中，用于通过使用3DLUT存储颜色校正的内插处理，将基于多个第一颜色分量（每个颜色分量的位数）的输入图像数据转换成基于多个第二颜色分量的输出图像数据 通过划分由多个第一颜色分量组成的颜色空间而获得的网格点处的值，网格点的距离为2n（其中n为小于k的整数），多个第一颜色的网格点的数量Dn 分量是满足2m-1 + 1 2m + 1和m = kn）的整数，并且通过将输入图像数据转换成输出图像数据， 根据网格点的数量输入图像数据，并且通过从3DLUT读取与转换的颜色分量相对应的颜色校正值来执行内插处理。

公开(公告)号：US20070121136A1

公开(公告)日：2007-05-31

申请号：US11601318

申请日：2006-11-16

申请人： Makio Gotoh ,  Masanori Minami

发明人： Makio Gotoh ,  Masanori Minami

IPC分类号： H04N1/60

CPC分类号： H04N1/6022

摘要： A segmentation process section classifies signals of pixels in input image data into respective signals of a black text/low density area, a black text/high density area, a color text area, and an area other than a text area. A black generation and under color removal section performs an under color removal process with respect to the signal of the black text/low density area so that an amount of UCR is a middle value (C, M, Y) of signals indicative of color component density levels. Consequently, it is possible to prevent color fringing and a white spot at a time when chromatic aberration occurs in the input image data.

摘要翻译： 分割处理部将输入图像数据中的像素的信号分类为黑色文字/低密度区域，黑色文本/高密度区域，彩色文本区域以及文本区域以外的区域的各个信号。 黑色生成和下部颜色去除部分对于黑色文本/低密度区域的信号执行底色去除处理，使得UCR的量是表示颜色分量的信号的中间值（C，M，Y） 密度水平。 因此，可以防止在输入图像数据中出现色差时的色斑和白点。

公开(公告)号：US20050012948A1

公开(公告)日：2005-01-20

申请号：US10889853

申请日：2004-07-13

申请人： Makio Gotoh ,  Kenji Kimura ,  Masanori Minami

发明人： Makio Gotoh ,  Kenji Kimura ,  Masanori Minami

IPC分类号： G06T1/00 ,  H04N1/48 ,  H04N1/60 ,  H04N9/64

CPC分类号： H04N1/6086

摘要： An original is illuminated by a light source α or a light source β, and image data is obtained under these conditions. An absolute value of a difference between image data under these different conditions is compared to a threshold value, and it is judged whether or not a color-unmatch occurs. If the color-unmatch occurs, the color-unmatch is corrected in accordance with a plurality of image data read under different conditions.

摘要翻译： 原件由光源α或光源β照射，并且在这些条件下获得图像数据。 将这些不同条件下的图像数据之间的差异的绝对值与阈值进行比较，并且判断是否发生颜色不匹配。 如果发生颜色不匹配，则根据在不同条件下读取的多个图像数据来校正颜色不匹配。