-
公开(公告)号：US06972868B1
公开(公告)日：2005-12-06
申请号：US09710810
申请日：2000-11-09
申请人： Jay S. Gondek , Ranjit Bhaskar , Steven O. Miller
发明人： Jay S. Gondek , Ranjit Bhaskar , Steven O. Miller
CPC分类号： H04N1/41
摘要： A method of compressing a set of image data organized into a matrix of pixels includes selecting a multi-pixel block portion of the data, then performing a mathematical function on the multi-pixel block portion to generate a first result. The multi-pixel block portion is divided into at least two segments, and a function is performed on each of the segments to generate a second result and a third result. Based on a comparison of the first, second, and third results, determining whether or not to compress the multi-pixel block portion. The function may be a deviation or mean measurement and serve to determine the noise level and image detail level to determine whether to compress or divide the block into sub blocks. Sub blocks may be recursively analyzed for compression or subdivision until all sub blocks are compressed or divided into single pixels.
摘要翻译： 压缩被组织成像素矩阵的一组图像数据的方法包括选择数据的多像素块部分，然后在多像素块部分上执行数学函数以产生第一结果。 多像素块部分被划分为至少两个段，并且对每个段执行功能以产生第二结果和第三结果。 基于第一，第二和第三结果的比较，确定是否压缩多像素块部分。 该功能可以是偏差或平均测量，并且用于确定噪声水平和图像细节水平，以确定是否将块压缩或划分成子块。 可以递归地分析子块以进行压缩或细分，直到所有子块被压缩或分成单个像素。
-
公开(公告)号：US06853468B2
公开(公告)日：2005-02-08
申请号：US10615349
申请日：2003-07-08
CPC分类号： H04N1/6016
摘要： A technique is described to greatly reduce or avoid the quantization errors that occur when mapping a relatively linear RGB color space into a greatly non-linear printer CMY color space of equal precision, avoiding the contouring or banding that occurs when printing color gradients in a non-linear printing system. The technique performs a dither-like process on the original RGB continuous tone data. The RGB values are dithered to create a range of values that, when mapped to the non-linear printer continuous tone CMY values, creates a range of CMY values that, on average, represent the correct average tone of the input RGB values. The generated CMY continuous tone values are then halftoned and printed.
摘要翻译： 描述了一种技术，以大大减少或避免将相对线性的RGB颜色空间映射到相当精度的非常非线性的打印机CMY颜色空间中时发生的量化误差，避免了当在非打印机中打印色彩渐变时发生的轮廓或条带 线性打印系统。 该技术对原始RGB连续色调数据执行类似抖动的处理。 RGB值被抖动以创建一定范围的值，当映射到非线性打印机连续色调CMY值时，创建平均来说表示输入RGB值的正确平均色调的CMY值的范围。 然后将生成的CMY连续色调值半色调并打印。
-
公开(公告)号：US06760122B1
公开(公告)日：2004-07-06
申请号：US09379983
申请日：1999-08-24
IPC分类号： H04N1405
CPC分类号： H04N1/6016
摘要： A technique is described to greatly reduce or avoid the quantization errors that occur when mapping a relatively linear RGB color space into a greatly non-linear printer CMY color space of equal precision, avoiding the contouring or banding that occurs when printing color gradients in a non-linear printing system. The technique performs a dither-like process on the original RGB continuous tone data. The RGB values are dithered to create a range of values that, when mapped to the non-linear printer continuous tone CMY values, creates a range of CMY values that, on average, represent the correct average tone of the input RGB values. The generated CMY continuous tone values are then halftoned and printed.
摘要翻译： 描述了一种技术，以大大减少或避免将相对线性的RGB颜色空间映射到相当精度的非常非线性的打印机CMY颜色空间中时发生的量化误差，避免了当在非打印机中打印色彩渐变时发生的轮廓或条带 线性打印系统。 该技术对原始RGB连续色调数据执行类似抖动的处理。 RGB值被抖动以创建一定范围的值，当映射到非线性打印机连续色调CMY值时，创建平均来说表示输入RGB值的正确平均色调的CMY值的范围。 然后将生成的CMY连续色调值半色调并打印。
-
4.发明授权
公开(公告)号：US5265176A
公开(公告)日：1993-11-23
申请号：US686732
申请日：1991-04-17
申请人： Steven O. Miller
发明人： Steven O. Miller
IPC分类号： B41J2/485 , B41J5/30 , G06F3/12 , G06K15/00 , G06T3/40 , G06K9/42 , G06K9/32 , G09G1/06 , H04N1/32
CPC分类号： G06K15/00 , G06K2215/0005 , G06K2215/0071 , G06K2215/0077
摘要： A method is disclosed of mapping raster data input of a source data set to a destination data set, wherein the source and destination data sets have different resolutions. Initially, a resolution ratio is determined between the source data set and the destination data set. The horizontal component of the source data set is converted to the resolution of the destination data set by copying select discrete groups of the source data to form a desired number of discrete groups of the destination data. A select number of vertical, or raster, rows of the horizontally converted data set are copied to form a required number of rows, thereby completing the destination data set. Look-up tables are provided to efficiently convert the horizontal component of the source data set. An apparatus for mapping raster data input includes a computation mechanism for determining the resolution ratio, and mechanisms for converting the horizontal and vertical components of the source data set into the destination data set. Additionally, a look-up table generator is provided.
-
5.发明授权Raster row and byte group graphics images data compression method 失效RASTER ROW AND BYTE GROUP GRAPHICS IMAGES DATA COMPRESSION METHOD
公开(公告)号：US5060286A
公开(公告)日：1991-10-22
申请号：US299363
申请日：1989-01-19
申请人： Steven O. Miller
发明人： Steven O. Miller
CPC分类号： H04N1/4175 , H04N1/415
摘要： The invented graphics images data compression method includes software which selectively compresses data on a raster-row-by-raster-row basis or on a byte-group-by-byte-group basis. The raster-row-by-raster-row basis compares bytes within adjacent raster rows and thereby detects repetitions between the rows. When data is compared on a raster-row-by-raster-row basis, the invented method records any differences as relative offset and replacement bytes. The byte-group-by-byte-group basis compares different byte groups within a single raster row, and thereby detects repetitions within the row itself.
-
公开(公告)号：US06257693B1
公开(公告)日：2001-07-10
申请号：US08827628
申请日：1997-04-10
IPC分类号： B41J29393
CPC分类号： G06K15/102 , G06K15/02 , G06K15/107 , G06K15/1825 , G06K15/1852 , G06K15/1855 , G06K2215/0011 , G06K2215/0062 , G06K2215/0065 , G06K2215/0094 , H04N1/40 , H04N1/40062
摘要： A method of automatically optimizing the controllable parameters related to producing printed material on a hardcopy output device is provided, along with a hardcopy output device configured for implementing this method. Users require different types of printed objects to have different characteristics. Specifically, business graphics need to be sharp and vivid, photographic images should look realistic, and text must be black, crisp and clear. By extracting, analyzing and conditioning data generated during a printing stream, the various regions of text, graphics and photographic images on a sheet are distinguished, characterized, and printed. The resulting hardcopy output has a custom balancing of color which is pleasing to the human eye for each type of image printed, and which has print characteristics tailored for the specific elements on the page.
摘要翻译： 提供了一种在硬拷贝输出设备上自动优化与制作印刷材料相关的可控参数的方法，以及配置用于实现该方法的硬拷贝输出设备。 用户需要不同类型的打印对象具有不同的特性。 具体来说，商业图形需要清晰和生动，照片图片应该看起来真实，文字必须是黑色，清晰和清晰。 通过提取，分析和调节在打印流期间产生的数据，片材上的文本，图形和照片图像的各个区域被区分，表征和打印。 所得到的硬拷贝输出具有自定义的颜色平衡，其对于打印的每种类型的图像对于人眼是令人愉快的，并且具有针对页面上的特定元素定制的打印特征。
-
7.发明授权Automatic optimization of hardcopy output for enhanced appearance and throughput 失效自动优化硬拷贝输出，增强外观和吞吐量
公开(公告)号：US5731823A
公开(公告)日：1998-03-24
申请号：US188618
申请日：1994-01-27
申请人： Steven O. Miller , William J. Allen
发明人： Steven O. Miller , William J. Allen
CPC分类号： G06K15/02 , G06K2215/0011 , G06K2215/0062 , G06K2215/0065 , G06K2215/0094
摘要： A method of automatically optimizing the controllable parameters related to producing printed material on a hardcopy output device is provided, along with a hardcopy output device configured for implementing this method. Users require different types of printed objects to have different characteristics. Specifically, business graphics need to be sharp and vivid, photographic images should look realistic, and text must be black, crisp and clear. By extracting, analyzing and conditioning data generated during a printing stream, the various regions of text, graphics and photographic images on a sheet are distinguished, characterized, and printed with a custom balancing of color pleasing to the human eye for each type of image printed.
摘要翻译： 提供了一种在硬拷贝输出设备上自动优化与制作印刷材料相关的可控参数的方法，以及配置用于实现该方法的硬拷贝输出设备。 用户需要不同类型的打印对象具有不同的特性。 具体来说，商业图形需要清晰和生动，照片图片应该看起来真实，文字必须是黑色，清晰和清晰。 通过提取，分析和调节在打印流中产生的数据，片材上的文本，图形和照片图像的各个区域被区分，表征和打印，以便为每种类型的图像打印出与人眼相似的颜色的定制平衡 。
-
公开(公告)号：US5633662A
公开(公告)日：1997-05-27
申请号：US926264
申请日：1992-08-05
申请人： William J. Allen , Steven O. Miller
发明人： William J. Allen , Steven O. Miller
CPC分类号： B41J2/2121 , G06K15/102 , H04N1/40025 , H04N1/52 , G06K2215/0071
摘要： A process is disclosed for controlling ink volume in liquid ink printing systems such as ink jet printers. The process examines the total ink volume per pixel as specified in source image data (typically 24-bit, three color data), i.e. before digital halftoning. For each pixel of data, the specified ink volume is compared to a selected maximum total ink volume per pixel. The maximum total ink volume is selected, depending upon the printing medium and environmental conditions, so as to provide good color coverage while avoiding curl, bleeding and other adverse effects of excessive ink volume. The source image ink volume is reduced so as to form depleted image data in which the ink volumes per pixel do not exceed the selected maximum. Preferably, a threshold ink volume also is selected, below which no ink limiting is applied, thereby avoiding washed-out images at lower ink volumes. Above the threshold, the ink volume is scaled to a value below the maximum, preferably by linear scaling.
摘要翻译： 公开了一种用于控制诸如喷墨打印机的液体油墨印刷系统中的油墨体积的方法。 该过程检查在源图像数据（通常为24位，三色数据）中指定的每像素的总墨水量，即在数字半色调之前。 对于数据的每个像素，将指定的墨水量与每个像素的所选最大总墨水体积进行比较。 根据打印介质和环境条件选择最大总墨量，以提供良好的颜色覆盖，同时避免卷曲，渗色和其他不良影响的墨水量过大。 源图像油墨体积减小以形成耗尽的图像数据，其中每像素的油墨体积不超过所选择的最大值。 优选地，还选择阈值油墨体积，在该阈值油墨体积下方不施加墨水限制，从而避免在较低油墨体积下的冲洗图像。 高于阈值时，油墨体积被缩放到低于最大值的值，优选地通过线性缩放。
-
9.发明授权Raster imaging device speed-resolution product multiplying method and resulting pixel image data structure 失效光栅成像设备速度分辨率乘法法和得到的像素图像数据结构
公开(公告)号：US5270728A
公开(公告)日：1993-12-14
申请号：US686898
申请日：1991-04-17
申请人： Mark D. Lund , Steven O. Miller
发明人： Mark D. Lund , Steven O. Miller
IPC分类号： B41J2/51 , B41J2/205 , B41J2/485 , B41J2/505 , G06K15/10 , G06T5/30 , H04N1/40 , H04N1/409 , B41J2/01
CPC分类号： B41J2/5058 , B41J2/2052 , G06K15/102 , H04N1/40068
摘要： A method for multiplying the speed-resolution product of a raster scanning or imaging device such as an inkjet printer, and a resulting pixel image data structure, are disclosed. Illustratively, a 300-dot per inch (dpi) by 600-dpi logical pixel image is mapped to a corresponding, non-overlapping physical dot image, and the printer's inkjets are fired responsive to the dot image to direct generally spherical ink droplets onto paper at 600-dpi resolution grid timing in order effectively to double the horizontal resolution of the printed pixel image, without increasing the firing rate of the print head. In order to accomplish this, and to avoid ink dot overlap, the printable pixel image is thinned before it is printed by a method that leaves no visible horizontal or vertical gaps by selectively turning off pixels within a `black` image that were on and that otherwise would result in ink dot overlap and slower print head speeds were the inkjets cycled at 600-dpi resolution timing. Pixel thinning is performed substantially without adversely affecting pixel image edge definition.
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.024 秒)
