Image processing apparatus and control method for performing screen processing
    3.
    发明授权
    Image processing apparatus and control method for performing screen processing 有权
    用于执行屏幕处理的图像处理装置和控制方法

    公开(公告)号:US08687240B2

    公开(公告)日:2014-04-01

    申请号:US12236185

    申请日:2008-09-23

    IPC分类号: G06T5/00 G06K9/40 G03G13/04

    摘要: This invention obtains a high-quality output image in which a jaggy or a disconnection of a thin line hardly stands out. An edge detection unit detects whether the pixel of interest is an edge pixel or a non-edge pixel. A screen processing unit performs screen processing for the pixel of interest to determine the output value of the N-level tone. A calculation unit performs filtering processing having a preset visual sense characteristic for an area including the pixel of interest to calculate the target value of the pixel of interest, and corrects the value of the pixel of interest so as to come close to the target value, thereby determining the output value of the N-level tone. The selector selects, according to the detection result by the edge detection unit, either the result from the calculation unit or that from the screen processing unit.

    摘要翻译: 本发明获得了粗纱或细线的断开几乎不突出的高质量输出图像。 边缘检测单元检测感兴趣的像素是边缘像素还是非边缘像素。 屏幕处理单元对感兴趣的像素执行屏幕处理以确定N级音调的输出值。 计算单元对包括感兴趣像素的区域执行具有预设的视觉特性的滤波处理,以计算感兴趣像素的目标值,并且校正感兴趣像素的值以接近目标值, 从而确定N级音调的输出值。 选择器根据边缘检测单元的检测结果选择来自计算单元的结果或来自屏幕处理单元的结果。

    IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREFOR
    4.
    发明申请
    IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREFOR 有权
    图像处理装置及其控制方法

    公开(公告)号:US20090097776A1

    公开(公告)日:2009-04-16

    申请号:US12236185

    申请日:2008-09-23

    IPC分类号: G06K9/40

    摘要: This invention obtains a high-quality output image in which a jaggy or a disconnection of a thin line hardly stands out. An edge detection unit detects whether the pixel of interest is an edge pixel or a non-edge pixel. A screen processing unit performs screen processing for the pixel of interest to determine the output value of the N-level tone. A calculation unit performs filtering processing having a preset visual sense characteristic for an area including the pixel of interest to calculate the target value of the pixel of interest, and corrects the value of the pixel of interest so as to come close to the target value, thereby determining the output value of the N-level tone. The selector selects, according to the detection result by the edge detection unit, either the result from the calculation unit or that from the screen processing unit.

    摘要翻译: 本发明获得了粗纱或细线的断开几乎不突出的高质量输出图像。 边缘检测单元检测感兴趣的像素是边缘像素还是非边缘像素。 屏幕处理单元对感兴趣的像素执行屏幕处理以确定N级音调的输出值。 计算单元对包括感兴趣像素的区域执行具有预设的视觉特性的滤波处理,以计算感兴趣像素的目标值,并且校正感兴趣像素的值以接近目标值, 从而确定N级音调的输出值。 选择器根据边缘检测单元的检测结果选择来自计算单元的结果或来自屏幕处理单元的结果。

    Image processing apparatus and method dividing image data for multi-pass scans using mask based on beam deviations
    5.
    发明授权
    Image processing apparatus and method dividing image data for multi-pass scans using mask based on beam deviations 有权
    图像处理装置和方法,基于光束偏差使用掩模分割用于多遍扫描的图像数据

    公开(公告)号:US08059307B2

    公开(公告)日:2011-11-15

    申请号:US12368114

    申请日:2009-02-09

    CPC分类号: H04N1/40037

    摘要: An image processing apparatus includes an emitter which has a plurality of light emitting devices arranged in a sub-scan direction, and a former which forms an image on a photosensitive member by multi-passed scanning an identical region on the photosensitive member in a main scan direction using light beams output from the respective light emitting devices of the emitter. An input section inputs image data of an image to be formed by the image processing apparatus. A divider divides the input image data into image data for respective scans in the multi-passed scans using a mask pattern generated based on amounts of deviations from scan lines of the light beams output by the respective light emitting devices of the emitter. A supplier supplies the divided image data to the emitter in accordance with scans of the former.

    摘要翻译: 图像处理装置包括具有沿副扫描方向排列的多个发光器件的发射器,以及通过在主扫描中在感光元件上通过多次扫描相同区域在感光部件上形成图像的发射器 方向使用从发射器的各个发光器件输出的光束。 输入部输入由图像处理装置形成的图像的图像数据。 分频器使用基于由发射器的各个发光器件输出的光束的扫描线的偏移量产生的掩模图案,将输入图像数据分割成用于多次扫描中的各个扫描的图像数据。 供应商根据前者的扫描将分割的图像数据提供给发射器。

    IMAGE PROCESSING APPARATUS AND METHOD THEREOF
    6.
    发明申请
    IMAGE PROCESSING APPARATUS AND METHOD THEREOF 有权
    图像处理装置及其方法

    公开(公告)号:US20090213394A1

    公开(公告)日:2009-08-27

    申请号:US12368114

    申请日:2009-02-09

    IPC分类号: H04N1/60

    CPC分类号: H04N1/40037

    摘要: An image processing apparatus includes an emitter which has a plurality of light emitting devices arranged in a sub-scan direction, and a former which forms an image on a photosensitive member by multi-passed scanning an identical region on the photosensitive member in a main scan direction using light beams output from the respective light emitting devices of the emitter. An input section inputs image data of an image to be formed by the image processing apparatus. A divider divides the input image data into image data for respective scans in the multi-passed scans using a mask pattern generated based on amounts of deviations from scan lines of the light beams output by the respective light emitting devices of the emitter. A supplier supplies the divided image data to the emitter in accordance with scans of the former.

    摘要翻译: 图像处理装置包括具有沿副扫描方向排列的多个发光器件的发射器,以及通过在主扫描中在感光元件上通过多次扫描相同区域在感光部件上形成图像的发射器 方向使用从发射器的各个发光器件输出的光束。 输入部输入由图像处理装置形成的图像的图像数据。 分频器使用基于由发射器的各个发光器件输出的光束的扫描线的偏移量产生的掩模图案,将输入图像数据分割成用于多次扫描中的各个扫描的图像数据。 供应商根据前者的扫描将分割的图像数据提供给发射器。

    IMAGE FORMING APPARATUS, CONTROL METHOD THEREOF, AND STORAGE MEDIUM
    7.
    发明申请
    IMAGE FORMING APPARATUS, CONTROL METHOD THEREOF, AND STORAGE MEDIUM 审中-公开
    图像形成装置,其控制方法和存储介质

    公开(公告)号:US20110176842A1

    公开(公告)日:2011-07-21

    申请号:US12969297

    申请日:2010-12-15

    申请人: Hitoshi Fukamachi

    发明人: Hitoshi Fukamachi

    IPC分类号: G03G15/01

    摘要: An image forming apparatus which forms an output image using a transparent colorant and a colored colorant, the apparatus comprises: a formation unit configured to form an adjustment pattern image using the transparent colorant and the colored colorant; an acquisition unit configured to acquire a density value in the formed pattern image; and a calculation unit configured to calculate, based on the acquired density value, a misalignment amount of the transparent colorant with respect to the colored colorant, wherein in the formed pattern image, the area with the transparent colorant are repetitively arranged at first intervals, and the area with the colored colorant are repetitively arranged at second intervals.

    摘要翻译: 一种图像形成装置,其使用透明着色剂和着色着色剂形成输出图像,所述装置包括:形成单元,被配置为使用所述透明着色剂和所述着色着色剂形成调整图案图像; 获取单元,被配置为获取形成的图案图像中的浓度值; 以及计算单元,被配置为基于获取的密度值计算相对于着色着色剂的透明着色剂的不对准量,其中在形成的图案图像中,以第一间隔重复布置具有透明着色剂的区域,以及 具有着色着色剂的区域以第二间隔重复排列。