公开(公告)号：US20030067632A1

公开(公告)日：2003-04-10

申请号：US10291496

申请日：2002-11-12

申请人： Canon Kabushiki Kaisha

发明人： Ken-Ichi Ohta ,  Masahiro Funada ,  Yushi Matsukubo ,  Junichi Yamakawa

IPC分类号： H04N001/403 ,  H04N001/405 ,  B41J002/47

CPC分类号： H04N1/40062 ,  G06K15/02 ,  G06K15/1822 ,  G06K15/1852 ,  G06K2215/0065 ,  H04N1/4056

摘要： A PDL interpreter rasterizes image data, which are described in page description language, entered from a host computer, and stores the rasterized image data in an image memory. A CPU discriminates the type of image, pixel by pixel, by referring to the image data stored in the image memory, and stores a discrimination code, which indicates the result of discrimination, in a code memory. The CPU reads out image data that have been stored in the image memory and reads the discrimination code corresponding to these image data out of the code memory. The image data read out of the image memory are subjected to different binarizing processing by two binarizing circuits. Depending upon the discrimination code read out of the code memory, a selector selects the output of one of the two binarizing circuits and sends the selected image data to a printer. Accordingly, it is possible to obtain a high-quality image which is a mixture of images having different characteristics, such as an image containing character or line drawings, continuous grayscale images, etc.

公开(公告)号：US20020003633A1

公开(公告)日：2002-01-10

申请号：US09878943

申请日：2001-06-13

发明人： Atsushi Matsumoto ,  Shinichi Kato

IPC分类号： G06K015/02 ,  H04N001/56 ,  H04N001/60 ,  H04N001/52 ,  H04N001/403 ,  H04N001/405

CPC分类号： H04N1/405 ,  H04N1/40 ,  H04N1/40062

摘要： One particular object of the present invention is to facilitate high quality reproduction for an image combining an image based on rendered PDL commands and a scanned image without considering whether the processed pixel is a portion of the scanned image or a portion of the image base on rendered PDL commands. So the present invention relates to an image processing apparatus which include an inputting unit for inputting image data described by a command corresponding to each part of an image, an interpreting unit for interpreting the command to form a bitmap image and to output attribute information; a scanning unit for scanning an image to output color image data; a generating unit for generating flag data indicating attributions of the image based on the color image data and indicating the pixel preferring the same image process as the pixel based on the attribute information; a first combining unit for combining the color image data and the bitmap image; and a second combining unit for combining the flag data and the attribute information of the command.

摘要翻译： 本发明的一个具体目的是为了便于基于渲染的PDL命令和扫描图像组合图像的图像而不考虑被处理的像素是否是被扫描的图像的一部分或者基于渲染的图像的一部分的高质量再现 PDL命令。 因此，本发明涉及一种图像处理装置，其包括：输入单元，用于输入由与图像的每个部分相对应的命令描述的图像数据;解释单元，用于解释命令以形成位图图像并输出属性信息; 用于扫描图像以输出彩色图像数据的扫描单元; 生成单元，用于基于所述彩色图像数据生成表示所述图像的属性的标志数据，并且基于所述属性信息指示优选与所述像素相同的图像处理的像素; 用于组合彩色图像数据和位图图像的第一组合单元; 以及用于组合标志数据和命令的属性信息的第二组合单元。