Image forming apparatus and image forming method
    31.
    发明申请
    Image forming apparatus and image forming method 审中-公开
    图像形成装置及图像形成方法

    公开(公告)号:US20060227396A1

    公开(公告)日:2006-10-12

    申请号:US11398619

    申请日:2006-04-06

    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。

    Image data processing apparatus and image display apparatus
    32.
    发明申请
    Image data processing apparatus and image display apparatus 失效
    图像数据处理装置和图像显示装置

    公开(公告)号:US20050206636A1

    公开(公告)日:2005-09-22

    申请号:US11080626

    申请日:2005-03-16

    申请人: Izumi Kanai

    发明人: Izumi Kanai

    IPC分类号: G09G3/22 G09G3/20 G09G5/00

    摘要: The invention provides an image data processing apparatus including a memory for storing plural values indicating plural brightnesses when a predetermined display element is driven based on discrete plural drive values, and an operation circuit for converting a first conversion value converted from input image data, based on a value read out from the memory thereby generating the drive value, wherein the operation circuit executes an operation for evaluating a difference between the first conversion value and the value indicating brightness, and an operation for obtaining the drive value according to a result of the evaluation.

    摘要翻译: 本发明提供一种图像数据处理装置,包括:存储器,用于当基于离散的多个驱动值驱动预定显示元件时存储指示多个亮度的多个值;以及操作电路,用于转换从输入图像数据转换的第一转换值,基于 从所述存储器读出的值,从而产生所述驱动值,其中所述操作电路执行用于评估所述第一转换值和指示亮度的值之间的差的操作,以及根据所述评估结果获得所述驱动值的操作 。

    Image signal processing method and image signal processing circuit
    33.
    发明申请
    Image signal processing method and image signal processing circuit 审中-公开
    图像信号处理方法和图像信号处理电路

    公开(公告)号:US20050190968A1

    公开(公告)日:2005-09-01

    申请号:US11065156

    申请日:2005-02-25

    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。

    Signal processing method and signal processing circuit
    34.
    发明申请
    Signal processing method and signal processing circuit 失效
    信号处理方法和信号处理电路

    公开(公告)号:US20050182808A1

    公开(公告)日:2005-08-18

    申请号:US11051179

    申请日:2005-02-07

    申请人: Izumi Kanai

    发明人: Izumi Kanai

    IPC分类号: H04N5/202 G06F7/38 G06T5/40

    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。

    Display device, method of manufacturing display device, information processing apparatus, correction value determining method, and correction value determining device
    35.
    发明申请
    Display device, method of manufacturing display device, information processing apparatus, correction value determining method, and correction value determining device 失效
    显示装置,制造显示装置的方法,信息处理装置,校正值确定方法和校正值确定装置

    公开(公告)号:US20050012821A1

    公开(公告)日:2005-01-20

    申请号:US10890192

    申请日:2004-07-14

    申请人: Izumi Kanai

    发明人: Izumi Kanai

    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。