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127 条记录 (耗时 0.015 秒)

    Image forming apparatus and image forming method thereof
    3.
    发明公开
    Image forming apparatus and image forming method thereof 审中-公开
    图像形成装置和图像形成方法

    公开(公告)号：EP1924077A3

    公开(公告)日：2009-07-08

    申请号：EP07119323.9

    申请日：2007-10-25

    申请人： Samsung Electronics Co., Ltd.

    发明人： Lee, Hae-kee ,  Lee, Ho-keun ,  Kim, Choon-woo ,  Lee, Jong-ok ,  Ryu, Byong-tae

    IPC分类号： H04N1/405

    CPC分类号： H04N1/4105

    摘要： An image forming apparatus, including a halftone image converter (210) to convert input image data having a plurality of bits per pixel into halftone image data having a binary pixel value corresponding to a bright pixel or a dark pixel, and a bit encoder (220) to divide the halftone image data into blocks with a predetermined size, and to perform a bit-encoding operation by using the number of either the bright or dark pixels in the block to output encoded image data.

    Image forming apparatus and image forming method thereof
    4.
    发明公开
    Image forming apparatus and image forming method thereof 审中-公开
    成像装置及其成像方法

    公开(公告)号：EP1924077A2

    公开(公告)日：2008-05-21

    申请号：EP07119323.9

    申请日：2007-10-25

    申请人： Samsung Electronics Co., Ltd.

    发明人： Lee, Hae-kee ,  Lee, Ho-keun ,  Kim, Choon-woo ,  Lee, Jong-ok ,  Ryu, Byong-tae

    IPC分类号： H04N1/405

    CPC分类号： H04N1/4105

    摘要： An image forming apparatus, including a halftone image converter (210) to convert input image data having a plurality of bits per pixel into halftone image data having a binary pixel value corresponding to a bright pixel or a dark pixel, and a bit encoder (220) to divide the halftone image data into blocks with a predetermined size, and to perform a bit-encoding operation by using the number of either the bright or dark pixels in the block to output encoded image data.

    摘要翻译： 一种图像形成设备，包括半色调图像转换器（210）以及位编码器（220），该半色调图像转换器（210）将具有每像素多个位的输入图像数据转换为具有与亮像素或暗像素相对应的二进制像素值的半色调图像数据 ）将半色调图像数据分割成具有预定大小的块，并且通过使用块中亮或暗像素的数量来执行比特编码操作以输出编码的图像数据。

    Bit mask generation system and printer drivers and printing methods incorporating bit masks generated utilising same
    5.
    发明公开
    Bit mask generation system and printer drivers and printing methods incorporating bit masks generated utilising same 审中-公开
    使用系统用于生产二元掩模和打印机驱动程序和印刷工艺这些面具

    公开(公告)号：EP1480445A2

    公开(公告)日：2004-11-24

    申请号：EP04252966.9

    申请日：2004-05-20

    申请人： Software 2000 Ltd.

    发明人： Woods, Michael Ian, c/o Software 2000 Ltd.

    IPC分类号： H04N1/405

    CPC分类号： H04N1/4051 ,  H04N1/4105

    摘要： A printing system is disclosed where a multi level pixel image (200) is converted into a half tone image (300) utilising a set of bit mask arrays (350-0 to 350-255) stored within a memory (310). The value of a multi level pixel is used to select one of the stored bit mask arrays. The co-ordinates of the multi level pixel in an image are then used to identify an entry from within the selected bit mask array. The identified entry is then used to set the value of the corresponding pixel in the half tone image. In order to reduce the appearance of contouring at the boundaries of adjacent portions of an image having similar grey levels, the stored bit mask arrays (350-0 to 350-255) are such that the majority of entries in the bit mask arrays for successive grey levels are identical. In addition to reducing contouring problems, the similarity of significant portions of bit mask arrays for successive grey levels make the bit mask arrays suitable for compression.

    摘要翻译： 一种打印系统，光盘，其中游离缺失的多级的像素映像（200）被转换成利用存储在存储器（310）内的一组位掩码阵列（350-0至350-255）半色调图像（300）。 的多级的像素的值被用于选择所存储的位掩码阵列中的一个。 图像中的多级的像素的坐标随后被用来识别来自所选择的位掩码阵列内的条目。 然后将识别出的条目用于设定对应的像素的值的半色调图像上。 为了减少轮廓中的具有类似的灰度级的图像的相邻部分的边界的外观，所存储的位掩码阵列（350-0至350-255）进行检查的确在所述位掩码阵列的大多数的条目为连续 灰度级是相同的。 除了减少轮廓的问题，对于连续的灰度级位掩码阵列的显著部分的相似性使所述位掩码阵列适于压缩。

    DATA CODING METHOD AND DEVICE, AND DATA CODING PROGRAM
    6.
    发明公开
    DATA CODING METHOD AND DEVICE, AND DATA CODING PROGRAM 审中-公开
    DATENCODIERUNGSVERFAHREN UND EINRICHTUNG UND DATENCODIERUNGSPROGRAMM

    公开(公告)号：EP1357735A1

    公开(公告)日：2003-10-29

    申请号：EP01272871.3

    申请日：2001-12-26

    申请人： Evolvable Systems Research Institute, Inc. ,  National Institute of Advanced Industrial Science and Technology

    发明人： SAKANASHI, Hidenori ,  HIGUCHI, Tetsuya

    IPC分类号： H04N1/411 ,  H03M7/36

    CPC分类号： H04N1/417 ,  H03M7/30 ,  H04N1/4105 ,  H04N1/52

    摘要： A data compression method using a template, in which a template optimizing means using an artificial intelligent technique (such as a genetic algorithm) applied to segments defined by diving input data into uniform segment units contributes to enhancing the prediction accuracy, data is compressed using the results of optimization, and a database is updated to improve the compression efficiency and speed of the subsequent processings. By updating a database by using an optimized template, a template for improving the prediction accuracy is obtained quickly without applying any artificial intelligent technique.

    摘要翻译： 使用模板的数据压缩方法，其中使用将由潜水输入数据定义的段应用于均匀段单元的人造智能技术（诸如遗传算法）的模板优化装置有助于提高预测精度，使用 优化结果，并更新数据库以提高后续处理的压缩效率和速度。 通过使用优化模板更新数据库，可以快速获得提高预测精度的模板，而不需要任何人工智能技术。

    Improvements in or relating to printing processes
    9.
    发明公开
    Improvements in or relating to printing processes 失效
    改进印刷

    公开(公告)号：EP0774858A3

    公开(公告)日：1999-04-07

    申请号：EP96118523.8

    申请日：1996-11-19

    申请人： TEXAS INSTRUMENTS INCORPORATED

    发明人： Venkateswar, Vadlamannati

    IPC分类号： H04N1/41

    CPC分类号： H04N1/4105 ,  H04N1/41

    摘要： A method for compressing screened image data for printing. The data is generated by tiling an image with multi-pixel cells. The pixels within any one cell may or may not be rescanned to be better fit for compression. The method allows for selection between two compression paths, one which has no loss (24), the other which is lossy (26). Once the data is compressed, the information is stored in a buffer (16), then sent to the exposure module. If the lossy scheme is selected, a quantization factor (14) is used in compression that may be adjusted, depending upon feedback signals (18,20), to increase or decrease the compression.

    System for compressing and decompressing binary representations of dithered images
    10.
    发明公开
    System for compressing and decompressing binary representations of dithered images 有权
    用于压缩和解压缩抖动图像的二进制表示的系统

    公开(公告)号：EP0902398A2

    公开(公告)日：1999-03-17

    申请号：EP98307215.8

    申请日：1998-09-07

    申请人： XEROX CORPORATION

    发明人： Davies, Daniel

    IPC分类号： G06T9/00

    CPC分类号： G06T9/001 ,  H04N1/4105

    摘要： A method for compression and decompression of dithered images is disclosed. Logical units (tiles) of the binary representation are classified (205) into equivalence classes which are then compressed (206). Each equivalence class represents tiles having similar gray levels (i.e. the same number of black pixels), but which may have different sequences of black and white pixels. Each equivalence class has associated with it a predefined set of rendering exemplars. Each of the exemplars has a similar gray level. Upon decompression, each instance of an equivalence class takes on the value of one of the rendering exemplars which is selected pseudo-randomly. This effectively causes the image to be re-dithered so there is no loss of critical image information on decompression.

    摘要翻译： 公开了一种用于压缩和解压缩抖动图像的方法。 将二进制表示的逻辑单元（块）分类（205）为等效类，然后将其压缩（206）。 每个等价类表示具有相似灰度级（即，相同数量的黑色像素）的块，但是其可以具有不同的黑色和白色像素序列。 每个等价类与它关联了一组预定义的示例。 每个示例都具有相似的灰度级。 在解压缩时，等价类的每个实例呈现伪随机选择的一个渲染示例的值。 这有效地使图像重新抖动，因此在解压缩时不会丢失关键图像信息。