公开(公告)号：US20050088672A1

公开(公告)日：2005-04-28

申请号：US10695491

申请日：2003-10-28

Applicant: David Johnson

Inventor： David Johnson

IPC: H04N1/40 ,  H04N1/50 ,  H04N1/56 ,  H04N1/60

CPC classification number: H04N1/6055 ,  H04N1/40006

Abstract: In an implementation of printing system calibration, a printing system includes a print unit and a calibration system. The calibration system has a learning mode operable to receive a master calibration page containing color value indicia, and measure the color value indicia to determine target color values each corresponding to a color value indicia. The calibration system can utilize a target color value to calibrate the print unit.

Abstract translation: 在打印系统校准的实现中，打印系统包括打印单元和校准系统。 校准系统具有可操作以接收包含颜色值标记的主校准页面的学习模式，并且测量颜色值标记以确定每个对应于颜色值标记的目标颜色值。 校准系统可以利用目标颜色值来校准打印单元。

公开(公告)号：US20050078878A1

公开(公告)日：2005-04-14

申请号：US10605463

申请日：2003-09-30

Applicant: Ming-Huang Kuo ,  I-Chen Teng

Inventor： Ming-Huang Kuo ,  I-Chen Teng

IPC: G06K9/00 ,  G06K9/40 ,  G06T5/00 ,  G06T7/40 ,  H04N1/58 ,  H04N1/62

CPC classification number: G06T5/007 ,  G06T7/90 ,  G06T2207/10008 ,  G06T2207/10024 ,  G06T2207/20021 ,  H04N1/40006

Abstract: A method for correcting faded colors in aged photographs or film. The method automatically restores the color of the image by analyzing the color variance in the image and determining tonal curve for each channel. First, the interior of the image is selected and the image is portioned into sub-images. The variance of each sub-image is calculated, and the parameters are evaluated for correcting the entire image during scanning. This method will provide good color quality and preserve good density of the image.

Abstract translation: 一种校正老年照片或电影中褪色的方法。 该方法通过分析图像中的颜色方差和确定每个通道的色调曲线自动恢复图像的颜色。 首先，选择图像的内部，并将图像分割成子图像。 计算每个子图像的方差，并且在扫描期间评估参数以校正整个图像。 这种方法将提供良好的色彩质量并保持良好的图像密度。

公开(公告)号：US06819451B1

公开(公告)日：2004-11-16

申请号：US09521329

申请日：2000-03-09

Applicant: David J. Statt

Inventor： David J. Statt

IPC: G09G500

CPC classification number: H04N1/40006 ,  H04N1/6052 ,  H04N1/6097

Abstract: Reproduction apparatus is periodically calibrated using only one member of a group of receivers. A correction is applied for other members of the group based on their relative differences from the one member. The one member to be calibrated periodically is designated the “key” member. Whenever a new member of the group comes into the lab, it, along with the key member are calibrated. The ratios of the density outputs over the full exposure range are calculated and saved for the new member. Then, at each reproduction apparatus calibration, the density outputs for the key member are determined and the ratios of density outputs are applied to predict the corresponding density outputs of the other group members, as if they were being calibrated at the same time.

Abstract translation: 使用一组接收器中的一个成员周期性地校准再生设备。 根据与该成员的相对差异，对该组的其他成员进行更正。 要定期校准的一个成员被指定为“关键”成员。 每当一个新的成员进入实验室，它与关键成员一起被校准。 为新成员计算并保存密度输出在全曝光范围内的比例。 然后，在每个再现设备的校准中，确定关键构件的密度输出，并且应用密度输出的比率来预测其他组成员的相应密度输出，就好像它们被同时校准一样。

公开(公告)号：US20040212671A1

公开(公告)日：2004-10-28

申请号：US10423255

申请日：2003-04-25

Inventor： Shell S. Simpson ,  Eugene A. Roylance

IPC: G01D015/14

CPC classification number: H04N1/40006 ,  H04N1/00965 ,  H04N1/4092

Abstract: A memory integrated into a removable cartridge for an image forming device is formatted to store a state variable reflecting a state of a printing component. A method embodiment includes reading the state variable. An image enhancement technique, selected according to the state variable, is implemented. In another embodiment, the memory contains technique selection criteria. The technique selection criteria is processed with the state variable to select a template set identifying one or more image enhancement techniques.

Abstract translation: 集成到用于图像形成装置的可移除盒中的存储器被格式化以存储反映打印部件的状态的状态变量。 方法实施例包括读取状态变量。 实现了根据状态变量选择的图像增强技术。 在另一个实施例中，存储器包含技术选择标准。 用状态变量处理技术选择标准，以选择识别一个或多个图像增强技术的模板集。

公开(公告)号：US06744469B1

公开(公告)日：2004-06-01

申请号：US09459555

申请日：1999-12-13

Applicant: John C. Gudenburr ,  William L. Kozlowski ,  Christopher N. St. John ,  John D. Vala

Inventor： John C. Gudenburr ,  William L. Kozlowski ,  Christopher N. St. John ,  John D. Vala

IPC: H04N5222

CPC classification number: H04N1/40006 ,  H04N1/028 ,  H04N1/02865 ,  H04N1/02885 ,  H04N1/40056 ,  H04N5/235 ,  H04N2201/044

Abstract: A method and system provide for real-time compensation of an imaging system for variations in illumination intensity. An illumination system provides reflected illumination, and a charge coupled device system directly detects the reflected illumination from the illumination system. The CCD system then converts the reflected illumination into illumination data and a host processor converts the illumination data into adjusted control data and final image data. The adjusted control data is based on an illumination profile and a reference illumination intensity. The reference illumination intensity is measured before each document with a compensation reference, and is compared to the illumination profile to adjust control parameters in a real-time mode. Directly measuring the illumination intensity with the CCD system allows for a reduction in parts, manufacturing steps, and errors.

Abstract translation: 一种方法和系统为成像系统实时补偿照明强度的变化。 照明系统提供反射照明，并且电荷耦合器件系统直接检测来自照明系统的反射照明。 然后，CCD系统将反射的照明转换成照明数据，并且主机处理器将照明数据转换成调节的控制数据和最终的图像数据。 经调整的控制数据基于照明轮廓和参考照明强度。 在具有补偿参考的每个文档之前测量参考照明强度，并将其与照明轮廓进行比较以在实时模式中调整控制参数。 使用CCD系统直接测量照明强度可以减少零件，制造步骤和错误。

公开(公告)号：US20030179428A1

公开(公告)日：2003-09-25

申请号：US10375036

申请日：2003-02-28

Inventor： Seizo Suzuki ,  Yoshinori Hayashi ,  Kazuyuki Shimada

IPC: G02B026/08

CPC classification number: B41J2/473 ,  G02B26/123 ,  H04N1/047 ,  H04N1/0473 ,  H04N1/113 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/192 ,  H04N1/40006 ,  H04N1/4015 ,  H04N2201/02441 ,  H04N2201/04722 ,  H04N2201/04732 ,  H04N2201/04787 ,  H04N2201/04796

Abstract: An optical scanner includes a light source modulated based on image data, an optical deflection and scanning part deflecting a light beam emitted from the light source, and a scanning and imaging optical system condensing the deflected light beam toward a scanning surface so as to form a light spot optically scanning the scanning surface. The effective scanning region of the scanning surface is divided into a plurality of regions according to a scanning line curving characteristic. Suitable image data for optically scanning the divided regions are selected from image data of a plurality of image lines every time the light spot optically scans the effective scanning region, so that the image data of each of the image lines is written with scanning line curving being corrected.

Abstract translation: 光学扫描器包括基于图像数据调制的光源，偏转光束的光学偏转和扫描部分，以及将偏转的光束朝向扫描表面聚光的扫描和成像光学系统，以形成扫描面 光点光学扫描扫描面。 根据扫描线弯曲特性，将扫描面的有效扫描区域分割为多个区域。 每次光点光扫描有效扫描区域时，从多个图像线的图像数据中选择用于光学扫描分割区域的合适图像数据，从而以扫描线弯曲为单位写入每条图像线的图像数据 纠正

公开(公告)号：US6411321B2

公开(公告)日：2002-06-25

申请号：US15070598

申请日：1998-09-10

Applicant: TOSHIBA KK

Inventor： TANIMOTO KOJI ,  KOMIYA KENICHI ,  IDE NAOAKI ,  SAKAKIBARA JUN

IPC: H04N1/40 ,  B41J2/435

CPC classification number: H04N1/40006 ,  H04N1/40031 ,  H04N1/40037 ,  H04N1/4005

Abstract: In a digital copying machine using a multi-beam optical system, a sensor pattern SH for sensing the power of each of the light beams a to d scanning the surface of a photosensitive drum and sensor patterns SB1 to SF1, SB2 to SF2 for sensing the passing positions of the beams are provided in a light beam position sensing unit. The sensor patterns SB1 to SF1, SB2 to SF2 are arranged linearly in the sub-scanning direction at intervals corresponding to two resolutions. The power of each light beam on the surface to be scanned is controlled so as to be in a specific range. Even when the light beams are scanned with different resolutions, they can be controlled with high accuracy so as to constantly have an ideal positional relationship between them. This always assures high picture quality.

Abstract translation: 在使用多光束光学系统的数字复印机中，用于感测扫描感光鼓表面的每个光束a至d的功率的传感器图案SH和用于感测感光鼓的传感器图案SB1至SF1，SB2至SF2的传感器图案 梁的通过位置设置在光束位置感测单元中。 传感器图案SB1至SF1，SB2至SF2以与两个分辨率对应的间隔沿副扫描方向线性排列。 要扫描的表面上的每个光束的功率被控制在特定范围内。 即使以不同的分辨率对光束进行扫描，也可以高精度地进行控制，从而在它们之间不断具有理想的位置关系。 这始终保证高画质。

公开(公告)号：US6061144A

公开(公告)日：2000-05-09

申请号：US732598

申请日：1996-10-15

Applicant: Mitsuru Mamizuka

Inventor： Mitsuru Mamizuka

IPC: G03G15/01 ,  H04N1/40 ,  H04N1/407 ,  H04N1/48 ,  H04N1/60

CPC classification number: H04N1/40006 ,  H04N1/60 ,  H04N1/6033

Abstract: A color copying apparatus includes a function for correcting image density when an image development system is deteriorated after a relatively long time of usage. A reference image including a number of color gray scales is stored in a memory, and is recorded on a recording medium. Each color gray scale corresponds to each of a yellow, a magenta, a cyan, and a black color for a letter image and each of a yellow, a magenta, a cyan, and a black color for a halftone image. When the image development system is deteriorated, the reference image recorded on the recording medium represents image density which is different from the reference image stored in the memory. This difference is detected by comparing the image density of two reference images, one stored in the memory and the other recorded on the recording medium. In accordance with a result of the comparison, a suitable data table of gamma data for each color element for a letter image and for each color element for a halftone image is selected from among a number of data tables of gamma data stored in the memory, so that the image density is corrected for each color element and for each image type and such that the image development system of the color copying apparatus is set again in a condition in which an image can be reproduced in a superior quality.

Abstract translation: 彩色复印设备包括当在相对长的使用时间之后图像显影系统劣化时校正图像浓度的功能。 将包括多个颜色灰度的参考图像存储在存储器中，并记录在记录介质上。 每个颜色灰度对应于字母图像的黄色，品红色，青色和黑色中的每一种，以及用于半色调图像的黄色，品红色，青色和黑色中的每一种。 当图像显影系统劣化时，记录在记录介质上的参考图像表示与存储在存储器中的参考图像不同的图像浓度。 通过比较存储在存储器中的两个参考图像的图像密度和记录在记录介质上的其他参考图像的图像密度来检测该差异。 根据比较的结果，从存储在存储器中的伽马数据的多个数据表中选择用于字母图像的每个颜色元素和用于半色调图像的每个颜色元素的伽马数据的合适数据表， 使得对于每个颜色元素和每种图像类型校正图像浓度，并且使得彩色复印设备的图像显影系统在能以更高质量再现图像的条件下再次设置。

公开(公告)号：US5898507A

公开(公告)日：1999-04-27

申请号：US274305

申请日：1994-07-12

Applicant: Rintaro Nakane ,  Hiroki Kanno

Inventor： Rintaro Nakane ,  Hiroki Kanno

IPC: H04N1/40 ,  H04N1/405 ,  H04N1/407

CPC classification number: H04N1/4078 ,  H04N1/40006

Abstract: In an image processing apparatus of this invention, an error diffusion processing means having a multi level signal conversion means changes the conversion characteristics of the multi level signal conversion means, e.g., corrects the output value of error diffusion processing, on the basis of an output from a means for detecting a variation in toner attachment amount or image forming condition. That is, this invention executes error diffusion processing as follows when an input dimension is different from an output dimension (e.g., input dimension=reflection factor or density, output dimension=number of gradation levels) with respect to a multi-value conversion means because error diffusion processing cannot be simply performed. The input dimension is set to coincide with the output dimension (an output signal is set to coincide with the input signal), this output signal is changed in accordance with a variation in image density, and an error between the changed output signal and the input signal is calculated, thereby executing error diffusion processing. Even when the gradation characteristics per pixel vary due to the influence of a change in environment or aging, or the number of gradation levels decreases due to the variation, the gradation characteristics in a local area can be maintained good, and initial image quality can be provided over a long period of time.

Abstract translation: 在本发明的图像处理装置中，具有多电平信号转换装置的误差扩散处理装置改变多电平信号转换装置的转换特性，例如，基于输出来校正误差扩散处理的输出值 从用于检测调色剂附着量或图像形成条件的变化的装置。 也就是说，当输入尺寸不同于多值转换装置的输入尺寸（例如，输入尺寸=反射因子或密度，输出尺寸=灰度级数）时，本发明执行误差扩散处理，因为 误差扩散处理不能简单地执行。 输入尺寸设置为与输出尺寸（输出信号被设置为与输入信号一致）一致，该输出信号根据图像浓度的变化以及改变的输出信号和输入之间的误差而改变 信号被计算，从而执行误差扩散处理。 即使每个像素的灰度特性由于环境变化或老化的影响而变化，或灰度级数由于变化而降低，所以局部区域中的灰度特性可以保持良好，初始图像质量可以是 提供了很长一段时间。

公开(公告)号：US5887222A

公开(公告)日：1999-03-23

申请号：US979551

申请日：1997-11-26

Applicant: Mineyuki Sako

Inventor： Mineyuki Sako

IPC: G03G15/00 ,  G03G15/04 ,  G03G15/043 ,  G03G15/32 ,  H04N1/29 ,  H04N1/40 ,  H04N1/409

CPC classification number: H04N1/40006 ,  G03G15/326 ,  H04N1/2346 ,  H04N1/295 ,  H04N1/4092 ,  G03G15/043

Abstract: An image forming apparatus having a photosensitive unit including a film disposed thereon. The film wears over time causing its thickness to decrease, which causes non-uniformity in line image data produced by the apparatus. The invention counteracts changes in the film thickness by adjusting the intensity of the edges of the image in response to the amount of wear the apparatus has undergone. The amount of wear can be gauged by detecting the number of rotations made by the photosensitive unit or the number of sheets processed by the photosensitive unit. The invention has the particular advantage of ensuring consistency in the thickness of line images. A method for controlling exposure is also described.

Abstract translation: 一种具有感光单元的图像形成设备，包括设置在其上的膜。 胶片磨损时间会导致其厚度减小，从而导致设备产生的线条图像数据不均匀。 本发明通过根据装置所经受的磨损量调节图像边缘的强度来抵消膜厚变化。 可以通过检测由感光单元产生的旋转数或由感光单元处理的片的数量来测量磨损量。 本发明具有确保线图像厚度一致性的特别优点。 还描述了一种用于控制曝光的方法。