Image processing method and apparatus and image forming method and apparatus using the same
    52.
    发明授权
    Image processing method and apparatus and image forming method and apparatus using the same 失效
    图像处理方法及装置及其形成方法及装置

    公开(公告)号:US06190058B1

    公开(公告)日:2001-02-20

    申请号:US09430026

    申请日:1999-10-29

    IPC分类号: H04N1405

    CPC分类号: H04N1/4057 H04N1/4056

    摘要: An image can be outputted with a high sharpness without deteriorating a resolution. In order to output an image of a high picture quality while suppressing the occurrence of a moire, an exposure amount is modulated in accordance with pixel density information of the image divided into pixels of a predetermined size by an exposure amount modulating unit in a light scanning unit, thereby expressing an image dark/light state. In this case, in a highlight density region in which a pixel density is equal to or less than ⅓ of the maximum image density, the density data of two adjoining pixels is modulated by one pixel and the other pixel is not recorded. In a density region in which the image density lies within a range from ⅓ to ½ of the maximum image density, a part of the density data of one of the two adjoining pixels is transposed to the other pixel. In a density region in which the image density is equal to or larger than ½ of the maximum density, the pixel transposition is not performed.

    摘要翻译: 可以以高锐度输出图像,而不会降低分辨率。 为了在抑制莫尔条纹的发生的同时输出高图像质量的图像,根据在光扫描中的曝光量调制单元将被划分成预定尺寸的像的像的像素密度信息调制曝光量 从而表现图像暗/亮状态。 在这种情况下,在像素密度等于或小于最大图像浓度的1/3的高亮度密度区域中,两个邻接像素的浓度数据被调制一个像素,而不记录另一个像素。 在图像浓度处于最大图像浓度的1/3至1/2范围内的浓度区域中,两个邻接像素中的一个像素的一部分的浓度数据的一部分被转置到另一像素。 在图像浓度等于或大于最大浓度的1/2的密度区域中,不进行像素转置。

    Image processing apparatus and method
    53.
    发明授权
    Image processing apparatus and method 失效
    具有补偿输出装置特性的功能的图像处理装置和方法

    公开(公告)号:US06184915B2

    公开(公告)日:2001-02-06

    申请号:US08890648

    申请日:1997-07-09

    IPC分类号: B41J247

    CPC分类号: H04N1/6055

    摘要: An image forming apparatus forms an image on a medium by using an output device. A pattern signal for forming a predetermined pattern image on the medium is generated, and image forming parameters for the output device are determined on the basis of the density of the pattern image formed on the medium. The determined image forming parameters are transmitted via bidirectional communication to an external computer or other image forming apparatus.

    摘要翻译: 图像形成设备通过使用输出设备在介质上形成图像。 产生用于在介质上形成预定图案图像的图形信号,并且基于形成在介质上的图案图像的密度来确定用于输出装置的图像形成参数。 所确定的图像形成参数通过双向通信传输到外部计算机或其它图像形成装置。

    Image processing apparatus and method for improving image reproducibility
    54.
    发明授权
    Image processing apparatus and method for improving image reproducibility 失效
    用于提高图像再现性的图像处理装置和方法

    公开(公告)号:US6091512A

    公开(公告)日:2000-07-18

    申请号:US938450

    申请日:1997-09-29

    CPC分类号: H04N1/407 H04N1/4056

    摘要: An image processing apparatus for subjecting input image data to a density conversion includes three dot isolation circuits which subject the pixels on each of a plurality of lines adjoining in the sub-scan direction to a density conversion in accordance with a different predetermined conversion characteristic (LUT) for each line. Though each dot separation circuit deals with a different number of lines of image data to undergo a density conversion, the predetermined conversion characteristics can be set in advance in such a manner that the density values of a plurality of pixels on adjoining line will be preserved if an overall view of the reproduced image is taken.

    摘要翻译: 一种用于对输入图像数据进行浓度转换的图像处理装置包括三个点隔离电路,它们使根据不同的预定转换特性(LUT)的副扫描方向上的多条线中的每条线上的像素进行浓度转换 )。 虽然每个点分离电路处理不同数量的图像数据行以进行浓度转换,但是可以预先设置预定的转换特性,使得相邻行上的多个像素的浓度值将被保留,如果 拍摄再现图像的整体视图。

    Image forming apparatus and method
    55.
    发明授权
    Image forming apparatus and method 失效
    图像形成装置及方法

    公开(公告)号:US6034788A

    公开(公告)日:2000-03-07

    申请号:US972333

    申请日:1997-11-18

    CPC分类号: H04N1/4078

    摘要: It is an object of the invention to stabilize a picture quality by a calibration. In an image forming method using an image forming apparatus having reading means for reading an original and image forming means for forming an image on a medium, a first calibration is manually performed with respect to a system including both of the reading means and the image forming means, and a second calibration is automatically performed with respect to the image forming means solely.

    摘要翻译: 本发明的目的是通过校准来稳定画面质量。 在使用具有用于读取原稿的读取装置和用于在介质上形成图像的图像形成装置的图像形成装置的图像形成方法中,对于包括读取装置和图像形成两者的系统来手动执行第一校准 并且仅针对图像形成装置自动执行第二校准。

    Image processing apparatus and method thereof
    56.
    发明授权
    Image processing apparatus and method thereof 失效
    图像处理装置及其方法

    公开(公告)号:US5937087A

    公开(公告)日:1999-08-10

    申请号:US508259

    申请日:1995-07-27

    IPC分类号: H04N1/60 H04N1/46 G03F3/08

    摘要: An image having suitable color-tone and density is formed on a recording medium so that a full-color image of an excellent color-tone depending on a OHP can be projected, wherein a CCD separates colors of an original image to read it for converting into a RGB digital signal by an A/D conversion circuit, the process corresponding to a required image signal forming condition is executed by image process means for the digital signal to generate an image signal for outputting it to an LD driver, and a full-color image forming apparatus for forming a color image on a recording medium utilizing plural kinds of color materials based on the image signal comprises the image processing means for executing a gradation conversion process for the signals of C, M and Y in a LUT 1 circuit and executing a different gradation conversion process for a black signal Bk in a LUT 2 circuit different from a LUT 1 circuit.

    摘要翻译: 在记录介质上形成具有合适的色调和浓度的图像,使得可以投射出与OHP相关的优异色调的全色图像,其中CCD分离原始图像的颜色以读取它以便转换 通过A / D转换电路转换成RGB数字信号,与所需图像信号形成条件对应的处理由数字信号的图像处理装置执行,以产生用于将其输出到LD驱动器的图像信号, 利用基于图像信号的多种颜色材料在记录介质上形成彩色图像的彩色图像形成装置包括用于对LUT1电路中的C,M和Y的信号执行灰度转换处理的图像处理装置,以及 对与LUT1电路不同的LUT2电路中的黑色信号Bk执行不同的灰度转换处理。

    Image processing apparatus and method
    60.
    发明授权
    Image processing apparatus and method 失效
    图像处理装置及方法

    公开(公告)号:US5572330A

    公开(公告)日:1996-11-05

    申请号:US415575

    申请日:1995-04-03

    申请人: Nobuatsu Sasanuma

    发明人: Nobuatsu Sasanuma

    IPC分类号: H04N1/407 H04N1/60 G03G15/00

    CPC分类号: H04N1/6033 H04N1/4078

    摘要: An image processing apparatus for processing gradation images which includes a pattern forming circuit for forming a predetermined pattern on a medium. A detecting device detects the predetermined pattern on the medium and generates a detection signal. A processing circuit processes the input image signal in accordance with the detection signal and outputs a reproduction signal. A setting device manually sets an image signal processing condition of the processing circuit, thereby accomplishing optimization of the image processing.

    摘要翻译: 一种用于处理灰度图像的图像处理装置,其包括用于在介质上形成预定图案的图案形成电路。 检测装置检测介质上的预定图案并产生检测信号。 处理电路根据检测信号处理输入图像信号并输出​​再现信号。 设置装置手动设置处理电路的图像信号处理条件,从而实现图像处理的优化。