Progressive levels of automatic machine quality adjust
    6.
    发明授权
    Progressive levels of automatic machine quality adjust 失效
    自动机器质量进步水平调整

    公开(公告)号:US5305058A

    公开(公告)日:1994-04-19

    申请号:US940257

    申请日:1992-09-02

    IPC分类号: G03G15/00

    CPC分类号: G03G15/50 G03G15/55

    摘要: A technique for selectively adjusting the quality of an image processing apparatus in relation to deviations from image quality standards including the steps of recognizing a deviation of the image processing apparatus from the image quality standards, responding to the state of deviation from the image quality standards by providing a plurality of time delays for adjusting the quality of the image processing apparatus, the time delays include automatically adjusting the quality of the image processing during a current job run, automatically adjusting the quality of the image processing apparatus upon completion of a current job run, and automatically adjusting the quality of the image processing apparatus upon a predetermined time delay after completion of a current job.

    摘要翻译: 一种用于选择性地调整图像处理装置的质量相对于图像质量标准的质量的技术,包括以下步骤:根据图像质量标准识别图像处理装置与图像质量标准的偏差的步骤, 提供用于调整图像处理装置的质量的多个时间延迟,时间延迟包括在当前作业运行期间自动调整图像处理的质量,在当前作业运行完成时自动调整图像处理装置的质量 并且在完成当前作业之后在预定时间延迟时自动调整图像处理装置的质量。

    Compression of grayscale image data using multi-bit halftoning
    7.
    发明申请
    Compression of grayscale image data using multi-bit halftoning 有权
    使用多位半色调压缩灰度图像数据

    公开(公告)号:US20090021791A1

    公开(公告)日:2009-01-22

    申请号:US11826893

    申请日:2007-07-19

    IPC分类号: G06K15/00

    CPC分类号: G06K15/02 H04N1/4105

    摘要: A method and system are provided for reducing the bit depth of grayscale imagery using multi-bit halftoning. The halftoned image data may be lossy or losslessly compressed and stored in memory or transmitted over a communication channel. At the time of printing, the images are decompressed and reconstructed to a grayscale image data using Sigma filtering to preserve edges. Preferably, different Sigma filters may be applied based on contrast information within a local neighborhood region. Fuzzy edge detection may also be used to preserve edge features and prevent smearing.

    摘要翻译: 提供了一种使用多位半色调降低灰度图像的位深度的方法和系统。 半色调图像数据可以是有损的或无损地压缩的并存储在存储器中或通过通信信道传输。 在打印时,使用Sigma滤波将图像解压缩并重建为灰度图像数据以保留边缘。 优选地,可以基于局部邻域区域内的对比度信息应用​​不同的Σ滤波器。 模糊边缘检测也可用于保留边缘特征并防止拖尾。

    Compression of grayscale image data using multi-bit halftoning

    公开(公告)号:US08437043B2

    公开(公告)日:2013-05-07

    申请号:US11826893

    申请日:2007-07-19

    IPC分类号: G06K15/00 H04N1/601

    CPC分类号: G06K15/02 H04N1/4105

    摘要: A method and system are provided for reducing the bit depth of grayscale imagery using multi-bit halftoning. The halftoned image data may be lossy or losslessly compressed and stored in memory or transmitted over a communication channel. At the time of printing, the images are decompressed and reconstructed to a grayscale image data using Sigma filtering to preserve edges. Preferably, different Sigma filters may be applied based on contrast information within a local neighborhood region. Fuzzy edge detection may also be used to preserve edge features and prevent smearing.

    Dynamic adjustment of raster image processing performance based on colors seen within several runs
    9.
    发明授权
    Dynamic adjustment of raster image processing performance based on colors seen within several runs 失效
    基于几个运行中看到的颜色,动态调整光栅图像处理性能

    公开(公告)号:US07630098B2

    公开(公告)日:2009-12-08

    申请号:US11519068

    申请日:2006-09-12

    IPC分类号: H04N1/52

    CPC分类号: H04N1/52 H04N1/644

    摘要: The presently disclosed embodiments are directed to methods and systems for improving the performance of an image processor color to color tile transformation by caching color tiles most recently calculated. A page of a print job is received. One or more color tiles based on colors found in a previous print job are pre-calculated and stored in a memory. A color present in the page is read. The color is compared to one or more pre-calculated color tiles. If the color does not match a pre-calculated color tile, a new color tile for the color is calculated, a pre-calculated color tile is removed from the memory, the new color tile is added to the memory, and the new color tile is used to print the page. If the color does match a pre-calculated color tile stored in the memory, the pre-calculated color tile is used to print the page.

    摘要翻译: 目前公开的实施例涉及用于通过缓存最近计算出的颜色瓦来改善图像处理器颜色到彩色瓦片变换的性能的方法和系统。 接收到打印作业的页面。 基于在先前打印作业中找到的颜色的一个或多个彩色图块被预先计算并存储在存储器中。 读取页面中存在的颜色。 将颜色与一个或多个预先计算的颜色瓷砖进行比较。 如果颜色与预先计算的颜色图块不匹配,则计算颜色的新颜色图块,从存储器中移除预先计算的颜色图块,将新的颜色图块添加到存储器中,并且新的颜色图块 用于打印页面。 如果颜色与存储在存储器中的预先计算的色块匹配,则使用预先计算的颜色图块来打印页面。

    Dynamic adjustment of raster image processing performance based on colors seen within several runs
    10.
    发明申请
    Dynamic adjustment of raster image processing performance based on colors seen within several runs 失效
    基于几个运行中看到的颜色,动态调整光栅图像处理性能

    公开(公告)号:US20080062441A1

    公开(公告)日:2008-03-13

    申请号:US11519068

    申请日:2006-09-12

    IPC分类号: G06F15/00

    CPC分类号: H04N1/52 H04N1/644

    摘要: The presently disclosed embodiments are directed to methods and systems for improving the performance of an image processor color to color tile transformation by caching color tiles most recently calculated. A page of a print job is received. One or more color tiles based on colors found in a previous print job are pre-calculated and stored in a memory. A color present in the page is read. The color is compared to one or more pre-calculated color tiles. If the color does not match a pre-calculated color tile, a new color tile for the color is calculated, a pre-calculated color tile is removed from the memory, the new color tile is added to the memory, and the new color tile is used to print the page. If the color does match a pre-calculated color tile stored in the memory, the pre-calculated color tile is used to print the page.

    摘要翻译: 目前公开的实施例涉及用于通过缓存最近计算出的颜色瓦来改善图像处理器颜色到彩色瓦片变换的性能的方法和系统。 接收到打印作业的页面。 基于在先前打印作业中找到的颜色的一个或多个彩色图块被预先计算并存储在存储器中。 读取页面中存在的颜色。 将颜色与一个或多个预先计算的颜色瓷砖进行比较。 如果颜色与预先计算的颜色图块不匹配,则计算颜色的新颜色图块,从存储器中移除预先计算的颜色图块,将新的颜色图块添加到存储器中,并且新的颜色图块 用于打印页面。 如果颜色与存储在存储器中的预先计算的色块匹配,则使用预先计算的颜色图块来打印页面。