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公开(公告)号:US5867633A
公开(公告)日:1999-02-02
申请号:US767126
申请日:1996-12-09
CPC分类号: G06F3/1293 , G06F3/1296
摘要: The present invention relates to a method and system for efficient image handling. The invention includes an image server with which image files are registered. The image processing requests are sent to the image server to produce image data representing the processed image file. In one embodiment of the invention, a document processing application obtains an image file for printing. The application registers the image with the image server. The image server returns an identifier identifying the image file which is used for subsequent image processing requests. The application initiates a print job, sending the image identifier and selected print parameters to a printer driver. In response, the printer driver negotiates image processing requests with the image server to modify the image file in accordance with the selected print parameters. Finally, the processed image data is retrieved from the image server and sent to the printer. The image server and printer driver may be separate and independently executing processes. In an alternate embodiment, the application, image server and printer driver are loaded on two or more networked computers.
摘要翻译: 本发明涉及一种高效图像处理的方法和系统。 本发明包括图像服务器,其中登记有图像文件。 图像处理请求被发送到图像服务器以产生表示经处理的图像文件的图像数据。 在本发明的一个实施例中,文档处理应用程序获得用于打印的图像文件。 应用程序将映像注册到映像服务器。 图像服务器返回标识用于后续图像处理请求的图像文件的标识符。 应用程序启动打印作业,将图像标识符和选定的打印参数发送到打印机驱动程序。 作为响应,打印机驱动程序与图像服务器协商图像处理请求,以根据所选择的打印参数修改图像文件。 最后,从图像服务器检索处理后的图像数据,并将其发送到打印机。 图像服务器和打印机驱动程序可以是独立且独立执行的进程。 在替代实施例中,将应用程序,映像服务器和打印机驱动程序加载到两个或多个联网的计算机上。
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12.
公开(公告)号:US5768482A
公开(公告)日:1998-06-16
申请号:US490289
申请日:1995-06-14
IPC分类号: B41J2/01 , B41J2/205 , B41J2/21 , B41J19/14 , G06K15/02 , G06T3/40 , H04N1/387 , H04N1/40 , H04N1/46 , G06K15/00
CPC分类号: H04N1/40068 , B41J2/2132 , G06K15/02 , G06T3/403 , B41J19/142 , G06K2215/0057 , G06K2215/0071
摘要: Method and apparatus prepare an image for printing--and in some cases include an output stage, performing the actual printing--when the overall number of pixels is being scaled up or down from an original image or portion. Image-sharpening procedures are controlled automatically by a function of the number of pixels in the original image and the number in the output device. Any of a great variety of such functions may be used, but we prefer a step-function of a ratio of the two pixel counts--particularly a two-valued step-function in which one value is zero and the other serves as a sharpening factor in a sharpening algorithm. When the function yields its zero value, for efficiency the sharpening computations are preferably turned off. The nonzero value is automatically selected when the number of output pixels is more than twice the number of input pixels. The sharpening-factor value, ideally two, is multiplied by the deviation of each image element, e. g. pixel, from the average of its adjacent neighbors; this product is added to the level of the subject image element to form an adjusted level. Weighting or selection of neighbor values along particular axes allows for anisotropic resolution or anamorphic scaling.
摘要翻译: 方法和装置准备用于打印的图像,并且在某些情况下包括输出级,执行实际打印 - 当像素的总数量从原始图像或部分被放大或缩小时。 图像锐化程序通过原始图像中的像素数量和输出设备中的数字的函数自动控制。 可以使用各种各样的这样的功能,但是我们更喜欢两个像素计数的比率的阶梯函数,特别是其中一个值为零并且另一个作为锐化因子的二值阶跃函数 在锐化算法中。 当函数产生其零值时,为了效率,优选地关闭锐化计算。 当输出像素数量超过输入像素数量的两倍时,会自动选择非零值。 锐化因子值理想地为2,乘以每个图像元素的偏差,e。 G。 像素,从邻近邻居的平均值; 该产品被添加到主体图像元素的水平以形成调整的水平。 沿特定轴加权或选择邻近值允许各向异性分辨率或变形比例。
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