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Image processing apparatus, image output device, image processing method and record medium on which image processing program is recorded
| Details |
Inventors: Sekine, Hiroshi; Tsukimura, Shigeru; Kawano, Hiroyuki;
Assignee: Fuji Xerox Co., Ltd. (Tokyo, JP)
Primary Examiner: Brier; Jeffery
Assistant Examiner: Good-Johnson; Motilewa
Attorney, Agent or Firm:
To secure high quality, require no bulk memory and reduce processing time when code image data is expanded to plotted pattern data, a binary expansion section for expanding code image data to binary plotted pattern data, a multivalued expansion section for expanding code image data to multivalued plotted pattern data and an expansion method determining section for judging whether code image data is data for plotting a character and a line or not and whether code image data meets a predetermined condition or not and determining the expansion section to be applied are provided, and code image data is applied to the expansion section determined by the expansion method determining section. |
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DETAILED DESCRIPTION The present invention is made to solve the above problem and the object is to reduce processing time without requiring a bulk memory by executing smoothing processing if necessary when code image data is expanded to plotted pattern data and to provide an image processing apparatus wherein ridges are inconspicuous and a high quality of plotting pattern can be generated, an image output device wherein the output of an image is enabled, an image processing method and further, a record medium on which an image processing program for instructing a computer to execute the image processing is recorded.
To achieve the above object, an image processing apparatus according to the present invention is based upon an image processing apparatus for expanding code image data to plotted pattern data and characterized in that first expansion means for expanding code image data to binarized plotted pattern data, second expansion means for expanding code image data to multivalued plotted pattern data and selection means for selecting and applying either the above first or second expansion means as expansion means for expanding code image data are provided.
According to the present invention, although ridges on the edge of a character, a line and others may be conspicuous when code image data in which an instruction for plotting a character, a line and others is described is interpreted and expanded to plotted pattern data which is its bit image, either the first expansion means by which processing is executed at high speed or the second expansion means by which the edge of a character, a line and others is visually smoothed by multivaluing is suitably selected and applied according to a situation.
For the criterion of judgment for selection, if a line is output, the length, the width, an angle and others are conceivable.
The reason is that as the smaller either the length of the line or the width is, compared with a picture element or the closer to level or a perpendicular the angle of the line is, the more conspicuous ridges on the edge are, expansion means used for expansion processing is required to be suitably selected according to the width and the angle of the line
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