公开(公告)号：US06424747B1

公开(公告)日：2002-07-23

申请号：US09193716

申请日：1998-11-17

Applicant: Seiichiro Morikawa

Inventor： Seiichiro Morikawa

IPC: G06K976

CPC classification number: G06T5/002 ,  G06T5/20 ,  G06T2207/10024 ,  H04N1/58 ,  H04N1/6019

Abstract: A smoothing circuit smoothes lookup tables generated by a color conversion table generator, using a filter function selected from a filter function storage circuit, and supplies smoothed lookup tables to a color processing circuit. Density data supplied from a calibration circuit are converted into halftone dot % data according to the smoothed lookup tables. The halftone dot % data are interpolated and then converted into LD control data, which are supplied to laser diodes.

Abstract translation: 平滑电路使用从滤波器功能存储电路中选择的滤波器函数来平滑由颜色转换表生成器生成的查找表，并将平滑的查找表提供给颜色处理电路。 根据平滑的查找表，从校准电路提供的密度数据被转换成半色调点数据。 半色调点数据被内插，然后转换成LD控制数据，供给激光二极管。

公开(公告)号：US6002806A

公开(公告)日：1999-12-14

申请号：US712384

申请日：1996-09-11

Applicant: Seiichiro Morikawa

Inventor： Seiichiro Morikawa

IPC: G03G15/01 ,  H04N1/46 ,  H04N1/60 ,  G06S15/00

CPC classification number: H04N1/60

Abstract: Hue, lightness, and saturation signals are obtained from an input signal, and hue direction intensity signals with respect to respective unit colors are determined using color corrective intensity functions for respective hues which have been established based on measured values. These hue direction intensity signals are multiplied into corrected intensity signals with respect to the respective colors, which are multiplied by desired correction coefficients. Resulting product signals for the respective unit colors are added into corrected signals with respect to given color signals.

Abstract translation: 从输入信号获得色相，亮度和饱和度信号，并且使用已经基于测量值建立的各个色调的颜色校正强度函数来确定相对于各单元颜色的色调方向强度信号。 这些色调方向强度信号被相乘于相应颜色的校正强度信号，这些信号乘以期望的校正系数。 对于给定的颜色信号，将相应单位颜色的所得产品信号加到校正信号中。

公开(公告)号：US5696889A

公开(公告)日：1997-12-09

申请号：US701014

申请日：1996-08-21

Applicant: Seiichiro Morikawa

Inventor： Seiichiro Morikawa

IPC: G06T5/00 ,  H04N1/407 ,  H04N1/52 ,  H04N1/60 ,  H04N1/50

CPC classification number: H04N1/4078 ,  H04N1/6033

Abstract: A basic gradation curve, a gray balance, and a black curve are selected, and a tone reproduction curve is generated based on a combination of the basic gradation curve, the gray balance, and the black curve which have been selected. Using the generated tone reproduction curve, a sample image is color-separated to generate a proof. The proof is checked, and, if necessary, the tone reproduction curve is corrected until an optimum tone reproduction curve is generated.

Abstract translation: 选择基本灰度曲线，灰平衡和黑色曲线，并且基于所选择的基本灰度曲线，灰平衡和黑色曲线的组合来生成色调再现曲线。 使用生成的色调再现曲线，将样本图像进行颜色分离以产生证明。 检查证明，并且如果需要，校正色调再现曲线直到产生最佳色调再现曲线。

公开(公告)号：US5699490A

公开(公告)日：1997-12-16

申请号：US162762

申请日：1993-12-07

Applicant: Seiichiro Morikawa

Inventor： Seiichiro Morikawa

IPC: G03F3/08 ,  G03F5/00 ,  G06T1/00 ,  G06T1/20 ,  G06T5/00 ,  G06T5/40 ,  H04N1/407 ,  G06F15/00

CPC classification number: G06T5/009 ,  G06T5/40

Abstract: To produce a correction table to be referred to when a quantum level data (QL data) as an input image data to a given image output device is converted into an image having a halftone dot percentage, reference QL data having a plurality of data values arranged at predetermined data intervals are inputted to the image output device; the halftone dot percentage of an output image from the image output device are measured; an approximation formula of a desired function form is determined to approximate the measured halftone dot percentage by the method of least squares, on the condition that the formula should go through preset starting and ending points; and the correction table is produced based on the resulted approximation formula.

Abstract translation: 为了产生当将作为给定图像输出装置的输入图像数据的量子级数据（QL数据）转换为具有半色调点百分比的图像的量化级数据（QL数据）时将被参考的校正表，具有排列的多个数据值的参考QL数据 以预定的数据间隔输入到图像输出装置; 测量来自图像输出装置的输出图像的半色调点百分比; 确定所需函数形式的近似公式以通过最小二乘法近似测量的半色调点百分比，条件是公式应经过预设的起点和终点; 并且基于所得到的近似公式产生校正表。

公开(公告)号：US5550955A

公开(公告)日：1996-08-27

申请号：US123572

申请日：1994-02-07

Applicant: Seiichiro Morikawa

Inventor： Seiichiro Morikawa

IPC: H04N1/405 ,  G06T5/00 ,  H04N1/40 ,  H04N1/407 ,  H04N1/387

CPC classification number: H04N1/40 ,  H04N1/407

Abstract: An apparatus for processing an image data digitally comprises a storage device for storing therein a multiplier varying in accordance with a first image data obtained by digitally processing the image data, the length of the integral part of the first image data being n bits, a random number generating circuit for generating a random number falling on somewhere between zero and a positive number less than unity, an arithmetic circuit for performing arithmetic operations including a multiplication of the random number by the multiplier, and an adding circuit for adding the output of the arithmetic circuit to the first image data and outputting the least significant m bits (m.ltoreq.n) of the integral part of the so-added data as second image data for use in the next process.

Abstract translation: 用于数字处理图像数据的装置包括存储装置，用于存储根据通过数字处理图像数据获得的第一图像数据变化的乘数，第一图像数据的整数部分的长度为n位，随机 数字产生电路，用于产生落在零和小于1的正数之间的随机数;运算电路，用于执行包括随机数乘以乘法器的算术运算的运算电路和用于将运算 电路连接到第一图像数据，并输出所添加的数据的整体部分的最低有效m位（m = n）作为用于下一个处理的第二图像数据。

公开(公告)号：US5255084A

公开(公告)日：1993-10-19

申请号：US755373

申请日：1991-09-05

Applicant: Seiichiro Morikawa ,  Hiroshi Shirakura

Inventor： Seiichiro Morikawa ,  Hiroshi Shirakura

IPC: G03F3/08 ,  H04N1/60 ,  H04N1/46

CPC classification number: H04N1/6025

Abstract: Disclosed herein is an image processing apparatus for determining the rate of UCR (under color removal) for each color by a function of each of color signals. The image processing apparatus basically comprises a device for determining the maximum value Max and the minimum value Min of each of input signals Yi, Mi and Ci, and a device for determining the rates of UCR indicative of Y.sub.U, M.sub.U and C.sub.U from the input signals Yi, Mi, Ci and the maximum value Max and the minimum value Min, using respective functions F.sub.Y, F.sub.M and F.sub.C. The above-described Y.sub.U, M.sub.U and C.sub.U can be determined in accordance with the following equations:Y.sub.U =F.sub.Y (Max, Min, Yi)M.sub.U =F.sub.M (Max, Min, Mi)C.sub.U =F.sub.C (Max, Min, Ci).

公开(公告)号：US5172248A

公开(公告)日：1992-12-15

申请号：US630809

申请日：1990-12-24

Applicant: Hitoshi Urabe ,  Seiichiro Morikawa

Inventor： Hitoshi Urabe ,  Seiichiro Morikawa

IPC: H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N1/52

CPC classification number: H04N1/053 ,  H04N1/52 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04772

Abstract: This invention is a method for forming halftone screen to prepare a multi-color separated halftone gradation image which is printable and reproducible by superposing an image signal obtained by scanning an original comprising continuous-tone color images with a halftone screen signal generated electrically, which comprises the steps of exposing and scanning a light spot of a predetermined size at a predetermined pitch to form halftone dots, and changing the number of said pitch so as to obtain an arbitrary screen line number. Further, this invention relates to a light beam scanning apparatus for forming halftone screen to prepare a multi-color separated halftone gradation image which is printable and reproducible by superposing an image signal obtained by scanning an original comprising continuous-tone color images with a halftone screen signal generated electrically, which comprises a first laser diode for emitting a synchronizing laser beam, a second laser diode for emitting a recording laser beam, a galvanometer for inputting the synchronizing laser beam and the recording laser beam through a collimator and a mirror, a synchronizing signal generator and an image recording section for inputting laser beams reflected and deflected by said galvanometer, a PLL multiplier for outputting a synchronizing signal by inputting an electric signal from said synchronizing signal generator, and an output controlling section for driving the second laser diode in accordance with the image signal and the synchronizing signal.

Abstract translation: 本发明是一种形成半色调筛网的方法，用于制备多色分离的半色调灰度图像，该图像可通过叠加通过扫描包含连续色调彩色图像的原稿而获得的图像信号与通过电气产生的半色调屏幕信号而可打印和再现， 以预定间距曝光和扫描预定尺寸的光点以形成半色调点，并且改变所述间距的数量以获得任意屏幕行号的步骤。 此外，本发明涉及一种用于形成半色调网屏的光束扫描装置，以准备通过将通过扫描包含连续色调彩色图像的原稿通过半色调屏幕扫描的图像信号叠加而可打印和再现的多色分离半色调灰度图像 信号产生电路，其包括用于发射同步激光束的第一激光二极管，用于发射记录激光束的第二激光二极管，用于通过准直器和反射镜输入同步激光束和记录激光束的电流计，同步 信号发生器和用于输入由所述电流计反射和偏转的激光束的图像记录部分; PLL乘法器，用于通过输入来自所述同步信号发生器的电信号输出同步信号;以及输出控制部分，用于驱动第二激光二极管 与图像信号和同步si gnal。

公开(公告)号：US5062058A

公开(公告)日：1991-10-29

申请号：US325276

申请日：1989-03-17

Applicant: Seiichiro Morikawa

Inventor： Seiichiro Morikawa

IPC: B41J2/525 ,  G06F17/50 ,  G06T1/00 ,  H04N1/46 ,  H04N1/48 ,  H04N1/52 ,  H04N1/60

CPC classification number: H04N1/6016 ,  H04N1/6027

Abstract: An image processing method in a color scanner which includes an original base adapted to receive therein an original cassette that accomodate a color original, a light source for linearly radiating the original cassette as received in the original base, image sensors for color separating a transmitting or reflected light in a linear region of the color original into R, G and B for detection, a signal processing section for processing RGB image signals outputted from the image sensors by linearly scanning the color original to output four color image data such as C, M, Y and black, a color monitor connected to the signal processing section for displaying images of the four color image data, a data input device for inputting data required for the signal processing section and for designating a position where the color monitor displays and an output device for half-toning the four color image data to prepare a printing color separating block, which comprises the steps of: preparing a density cumulated histogram of the color original by using the RGB image signals, obtaining highlight point candidates and shadow point candidates of the color original due to the density cumulated histogram, displaying the highlight point candidates and the shadow point candidates on the image displayed on the color monitor, designating a highlight point and a shadow point by using the data input device, and setting condition data for the signal processing section in accordance with image data of the designated highlight point and shadow point.

Abstract translation: 一种彩色扫描仪中的图像处理方法，包括：适于在其中接收容纳原色的原稿盒的原件底座;用于在原始基座中直接辐射原稿盒的光源;用于将发送或/ 将颜色原稿的线性区域中的反射光转换成用于检测的R，G和B的信号处理部分，用于通过线性扫描彩色原稿来处理从图像传感器输出的RGB图像信号，以输出四个彩色图像数据，例如C，M ，Y和黑色，连接到用于显示四色图像数据的图像的信号处理部分的彩色监视器，用于输入信号处理部分所需的数据和用于指定彩色监视器显示的位置和输出的数据输入装置 用于半色调四色图像数据以准备印刷分色块的装置，其包括以下步骤：准备一个凹坑 通过使用RGB图像信号的颜色原稿的累积直方图，由于密度累积直方图获得彩色原稿的高亮点候选和阴影候选，在显示在颜色上的图像上显示高亮点候选和阴影候选 通过使用数据输入装置监视，指定高光点和阴影点，并根据指定的高光点和阴影的图像数据设置信号处理部分的条件数据。