公开(公告)号：US20060227396A1

公开(公告)日：2006-10-12

申请号：US11398619

申请日：2006-04-06

申请人： Kousei Sugimoto ,  Izumi Kanai

发明人： Kousei Sugimoto ,  Izumi Kanai

IPC分类号： G03F3/08

CPC分类号： H04N1/4074

摘要： An image forming apparatus for executing gradation correction processing to input image data, comprises: adding means for adding any signal value in a range of predetermined lower limit and upper limit in every pixel, to each pixel value of input image data; measuring means for measuring gradation distribution divided in a plurality of distribution ranges on the basis of gradation values of a predetermined number of pixels to which the signal values are added by the adding means; and generating means for generating gradation correction data for correcting the input image data in each pixel of the predetermined number on the basis of the gradation distribution measured by the measuring means.

摘要翻译： 一种用于执行灰度校正处理以输入图像数据的图像形成装置，包括：加法装置，用于将每个像素中的预定下限和上限范围内的任何信号值加到输入图像数据的每个像素值; 基于通过加法装置添加了信号值的预定数量的像素的灰度值，测量在多个分布范围中划分的灰度分布的测量装置; 以及产生装置，用于基于由测量装置测量的灰度分布，产生用于校正预定数量的每个像素中的输入图像数据的灰度校正数据。

公开(公告)号：US20050190968A1

公开(公告)日：2005-09-01

申请号：US11065156

申请日：2005-02-25

申请人： Izumi Kanai ,  Muneki Ando ,  Kousei Sugimoto

发明人： Izumi Kanai ,  Muneki Ando ,  Kousei Sugimoto

IPC分类号： G06T5/00 ,  G06K9/00 ,  G06T5/40 ,  H04N1/407 ,  H04N5/202

CPC分类号： G06T5/40 ,  G06T5/009

摘要： In order to improve a sense of contrast of an image signal without increasing the number of conversion conditions stored in advance, an image signal processing method of this invention includes steps of: dividing a range of possible values of input image signals into a plurality of regions, successively accumulating the number of image signals belonging to the respective regions among the image signals input during a predetermined period for the respective regions, and setting a successive accumulation result as an evaluation value; comparing the evaluation value with a predetermined value; selecting a conversion condition corresponding to a difference between the evaluation value and the predetermined value from among a plurality of conversion conditions stored in advance to correspond to one of the regions in which the evaluation value exceeds the predetermined value; and converting the image signals input under the selected conversion condition.

摘要翻译： 为了提高图像信号的对比度感，而不增加预先存储的转换条件的数量，本发明的图像信号处理方法包括以下步骤：将输入图像信号的可能值的范围分成多个区域 连续地累积属于各个区域的预定时段期间输入的图像信号中的各个区域的图像信号的数量，并且将连续累积结果设置为评估值; 将所述评估值与预定值进行比较; 从预先存储的多个转换条件中选择与评估值和预定值之间的差对应的转换条件，以对应于评估值超过预定值的区域之一; 并转换在所选择的转换条件下输入的图像信号。

公开(公告)号：US07864250B2

公开(公告)日：2011-01-04

申请号：US11851809

申请日：2007-09-07

申请人： Izumi Kanai

发明人： Izumi Kanai

IPC分类号： H04N9/68 ,  H04N5/14

CPC分类号： H04N9/68

摘要： Color saturation in chroma correction is reduced. Hence, a two-dimensional histogram is generated in association with the luminance and chroma levels of an image for one frame. An ease of saturation of the image is calculated from the two-dimensional histogram. A chroma gain is set according to the ease of saturation. Color-difference signals undergo chroma correction according to the chroma gain k.

摘要翻译： 色度校正中的色彩饱和度降低。 因此，与一帧的图像的亮度和色度水平相关联地生成二维直方图。 从二维直方图计算出图像的饱和度。 色度增益是根据饱和度的容易设定的。 色差信号根据色度增益k进行色度校正。

公开(公告)号：US07545393B2

公开(公告)日：2009-06-09

申请号：US10890192

申请日：2004-07-14

申请人： Izumi Kanai

发明人： Izumi Kanai

IPC分类号： G09G5/10

CPC分类号： G09G3/006 ,  G09G3/2014 ,  G09G2300/06 ,  G09G2320/0233 ,  G09G2320/0285

摘要： A display device includes a plurality of display elements and a correction circuit which outputs signals obtained by performing correction on input signals to the respective display elements, and the correction circuit performs the correction so that a spatial frequency distribution of luminance obtained by driving the respective display elements by using the signals obtained by performing the correction on the input signals indicative of predetermined luminance becomes a spatial frequency distribution in which a predetermined frequency component is reduced from among frequency components contained in a spatial frequency distribution of luminance obtained by driving the respective display elements without performing the correction on the input signals indicative of the predetermined luminance and at least a portion of frequency components lower than the predetermined frequency component is left.

摘要翻译： 显示装置包括多个显示元件和校正电路，该校正电路将对输入信号执行校正而获得的信号输出到各个显示元件，并且校正电路执行校正，使得通过驱动各个显示器获得的亮度的空间频率分布 通过使用通过对表示预定亮度的输入信号进行校正而获得的信号的元件，成为从通过驱动各显示元件获得的亮度的空间频率分布中包含的频率成分中的预定频率分量减小的空间频率分布 而不对表示预定亮度的输入信号执行校正，并且剩下低于预定频率分量的至少一部分频率分量。

公开(公告)号：US20080235313A1

公开(公告)日：2008-09-25

申请号：US12131651

申请日：2008-06-02

申请人： Izumi Kanai

发明人： Izumi Kanai

IPC分类号： G06F17/14

CPC分类号： G06T5/009 ,  G06T5/40 ,  H04N5/202

摘要： A signal processing method includes a first step of calculating a value indicating a value obtained by multiplying a ratio of the number of times of inputting the input signal having any one of values from p to m, where m is a maximum value of values of input signal which are subject to said signal processing and p is a value smaller than m and not a minimum value of the input signal, within a predetermined period to the number of times of inputting the input signal within the predetermined period, by the variable range of the converted value; and a second step of subtracting the calculated value from a maximum value within the variable range of the converted value or a value near the maximum value, wherein the input signal is converted according to the conversion characteristic specified based on a value obtained by subtraction.

摘要翻译： 一种信号处理方法包括：第一步骤，计算表示通过将输入具有从p到m的任何一个的输入信号的输入次数的比值相乘而得到的值，其中m是输入值的最大值 信号经受所述信号处理，p是小于m而不是输入信号的最小值的值，在预定时间段内，输入信号在预定时段内的次数减少可变范围 转换价值; 以及从所述转换值的可变范围内的最大值或接近所述最大值的值减去所述计算值的第二步骤，其中，根据通过减法获得的值指定的转换特性来转换所述输入信号。

公开(公告)号：US06590617B1

公开(公告)日：2003-07-08

申请号：US09507942

申请日：2000-02-22

申请人： Izumi Kanai ,  Yukio Hiraki ,  Kohei Inamura

发明人： Izumi Kanai ,  Yukio Hiraki ,  Kohei Inamura

IPC分类号： H04N5208

CPC分类号： H04N5/208

摘要： This invention can suppress overshoot/undershoot, and can maintain the improvement effect of the leading edge of an edge portion. For this purpose, a second derivative signal generator (1) generates a second derivative signal (s5) on the basis of time-serially input three successive pixels. A second derivative signal suppression unit (2) generates a signal (s8) obtained by suppressing the second derivative signal, and a signal (s9) indicating the sign of the second derivative signal. The absolute values of the differences between the pixel of interest, and its neighboring pixels are computed, and a smaller one of the absolute values is selected as a signal (s14) by a minimum value selection circuit (18). By multiplying the obtained signals (s8, s9, s14) by a multiplier (19), an edge-emphasizing signal (s15) is generated. The edge-emphasizing signal (s15) is added to the signal of the pixel of interest by an adder (20), thus obtaining an edge-emphasized signal s16.

摘要翻译： 本发明可以抑制过冲/下冲，并且可以保持边缘部分的前缘的改善效果。 为此，二阶导数信号发生器（1）基于时间顺序输入三个连续的像素产生二阶导数信号（s5）。 第二导数信号抑制单元（2）产生通过抑制二次微分信号获得的信号（s8）和表示二阶导数信号的符号的信号（s9）。 计算感兴趣像素与其相邻像素之间的差异的绝对值，并且通过最小值选择电路（18）将绝对值中较小的绝对值选择为信号（s14）。 通过将所获得的信号（s8，s9，s14）乘以乘法器（19），产生边缘强调信号（s15）。 通过加法器（20）将边缘加重信号（s15）加到感兴趣像素的信号上，从而获得边缘强调信号s16。

公开(公告)号：US08174622B2

公开(公告)日：2012-05-08

申请号：US11531575

申请日：2006-09-13

申请人： Izumi Kanai

发明人： Izumi Kanai

IPC分类号： H04N5/14 ,  H04N5/202

CPC分类号： G06T5/40 ,  G06T5/009 ,  H04N5/202

摘要： A data processing method of executing nonlinear conversion for pixel data, comprising: a first step of obtaining an amount of statistics corresponding to the number of pixel data having a gradation value in a predetermined range from a plurality of pixel data for displaying a predetermined image; a second step of obtaining a parameter corresponding to the distribution condition of the gradation values of the plurality of pixel data; an adjusting step of adjusting the amount of statistics based on the parameter; and a determining step of determining a conversion characteristic of the nonlinear conversion based on the adjusted amount of statistics.

摘要翻译： 一种执行像素数据的非线性转换的数据处理方法，包括：第一步骤，从用于显示预定图像的多个像素数据中获得与具有预定范围内的灰度值的像素数据的数量相对应的统计量; 获得与所述多个像素数据的灰度值的分布条件对应的参数的第二步骤; 基于参数调整统计量的调整步骤; 以及基于经调整的统计量确定非线性转换的转换特性的确定步骤。

公开(公告)号：US08085224B2

公开(公告)日：2011-12-27

申请号：US12164476

申请日：2008-06-30

申请人： Izumi Kanai ,  Hisanobu Azuma

发明人： Izumi Kanai ,  Hisanobu Azuma

IPC分类号： G09G3/22 ,  H05B39/00

CPC分类号： G09G3/22 ,  G09G5/04 ,  G09G2320/0209

摘要： An image display apparatus of this invention includes a neighborhood data integration section 20 which integrates image data on respective colors corresponding to electron emitting devices proximate to an electron emitting device to be driven, and corresponding to a phosphor contributing to a halation, an adder 6 adds the integrated image data R22, G22, and B22 on the respective colors, a coefficient operation section 7 which multiplies an addition result by a predetermined coefficient according to a luminous intensity of the halation, an adder 8 which adds outputs R23, G23, and B23 obtained by inverting a sign of multiplication results to image data R14, G14, and B14 corresponding to the electron emitting device to be driven, respectively, and a comparator 11 which compares an addition result with zero in magnitude, and which outputs a driving signal R25 for the respective colors.

摘要翻译： 本发明的图像显示装置包括邻域数据积分部分20，它对与待驱动的电子发射装置相邻的对应于电子发射装置的各种颜色的图像数据进行积分，并对应于有助于暂停的荧光体，加法器6增加 根据各种颜色的积分图像数据R22，G22和B22，系数操作部分7，其根据停止的发光强度将相加结果乘以预定系数，将输出R23，G23和B23相加的加法器8 通过将乘法结果的符号分别反转到与要驱动的电子发射器件相对应的图像数据R14，G14和B14获得，比较器11将加法结果与零值进行比较，并将驱动信号R25 为各自的颜色。

公开(公告)号：US07643677B2

公开(公告)日：2010-01-05

申请号：US11276836

申请日：2006-03-16

申请人： Yukio Hiraki ,  Izumi Kanai ,  Kohei Inamura ,  Seiji Osawa ,  Masaru Tada ,  Nobuhiro Hoshi

发明人： Yukio Hiraki ,  Izumi Kanai ,  Kohei Inamura ,  Seiji Osawa ,  Masaru Tada ,  Nobuhiro Hoshi

IPC分类号： G06K9/00

CPC分类号： G09G3/2003 ,  G09G2300/0452 ,  G09G2340/06

摘要： In the image display device according to the present invention, control is performed such that a condition of not using a subsidiary pixel which corresponds to a specific color among the subsidiary pixels constituting a first pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the first pixel, and a condition of using a subsidiary pixel which corresponds to a specific color among the subsidiary pixel constituting a second pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the second pixel adjacent to the first pixel in the first direction.

摘要翻译： 在根据本发明的图像显示装置中，执行控制，使得选择不使用构成第一像素的辅助像素中的与特定颜色对应的辅助像素的条件作为用于输出信号的信号处理的条件 用于指定构成第一像素的每个辅助像素的强度，并且选择使用构成第二像素的辅助像素中对应于特定颜色的辅助像素的条件作为信号处理的条件，输出用于指定强度的信号 每个辅助像素构成与第一方向上的第一像素相邻的第二像素。

公开(公告)号：US20080068510A1

公开(公告)日：2008-03-20

申请号：US11851809

申请日：2007-09-07

申请人： Izumi Kanai

发明人： Izumi Kanai

IPC分类号： H04N5/14

CPC分类号： H04N9/68

摘要： Color saturation in chroma correction is reduced. Hence, a two-dimensional histogram is generated in association with the luminance and chroma levels of an image for one frame. An ease of saturation of the image is calculated from the two-dimensional histogram. A chroma gain is set according to the ease of saturation. Color-difference signals undergo chroma correction according to the chroma gain k.

摘要翻译： 色度校正中的色彩饱和度降低。 因此，与一帧的图像的亮度和色度水平相关联地生成二维直方图。 从二维直方图计算出图像的饱和度。 色度增益是根据饱和度的容易设定的。 色差信号根据色度增益k进行色度校正。