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Image processing device

An image processing device and image technology, applied in image communication, electrical components, etc., can solve the problems that the pattern of the pattern is difficult to distinguish the difference in color, and the user is difficult to distinguish.

Active Publication Date: 2013-03-06
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the monochrome image generated by the method described in Patent Document 1, there is a problem that it is difficult for the user to distinguish the pattern of the pattern and the difference in color in the original color image.

Method used

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no. 1 approach

[0101] Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In addition, in this first embodiment, a printing system including a host computer as an example of an image processing apparatus will be described.

[0102] figure 1 It is a diagram showing a schematic configuration of the printing system 1 according to the first embodiment. Such as figure 1 As shown, the printing system 1 includes a host computer 10 and a printer 20, and the host computer 10 and the printer 20 are connected so as to enable data communication with each other.

[0103] The printer 20 includes a print engine 21 that prints on a medium such as paper, and a controller 22 that controls the operation of the print engine 21 and the like. The printer 20 performs processing of receiving a print job from the host computer 10 , processing of causing the print engine 21 to execute printing according to the print job, and the like under the control of the c...

no. 2 approach

[0159] In the above-mentioned first embodiment, the method of converting the color image of the color image data into the image data of the monochrome image with a hatch pattern has been described. In this second embodiment, for each of one or more target images (color images) included in color image data, text attributes representing characters, symbol data, etc., graphics attributes representing vector data, etc., and representation According to the type of the target image such as graphic properties such as bitmap data, fill patterns are applied according to the type of the target image property. In addition, below, the same code|symbol is attached|subjected to the same structure as 1st Embodiment, and detailed description is abbreviate|omitted.

[0160] Figure 8 The configuration of the image processing device 100 in the second embodiment is shown. Such as Figure 8 As shown, the printer driver 40 of the image processing apparatus 100 includes an image type determinati...

no. 3 approach

[0167] In the third embodiment, it is judged whether the color image of the color image data includes a prohibited image for which application of a hatch pattern is previously prohibited, and the area of ​​the prohibited image is converted into a monochrome image by gradation conversion without applying a hatch pattern. In addition, examples of prohibited images include specific marks such as marks with company name logos of companies, images of specific designs such as hatching patterns, and the like.

[0168] Figure 9 The configuration of the image processing device 100 in the third embodiment is shown. Such as Figure 9 As shown, the printer driver 40 of the image processing apparatus 100 has a prohibited image determination unit 45 , a pattern type determination unit 41 , a pattern density determination unit 42 , and a monochrome image data generation unit 43 .

[0169] The prohibited image determination unit 45 determines whether or not the color image of the color ima...

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Abstract

An image processing device includes a pattern kind determining unit that determines a hatch pattern representing a hatch shape corresponding to a color of a color image by a monochromatic concentration, a pattern concentration determining unit that determines a background concentration that is applied to a hatch-shaped background area, and a monochromatic image data generating unit that generates monochromatic image data in which the hatch pattern having the background concentration is applied to the background area. The pattern concentration determining unit changes the background concentration of the hatch pattern according to the color of the color image.

Description

technical field [0001] The present invention relates to an image processing device for converting color image data into monochrome image data. Background technique [0002] In the past, in order to convert color image data into monochrome image data, the following method has been widely used: according to the following formula (1), the gray value (gray value) is calculated according to the RGB value of the color image data, and the gray value for use is obtained. Represents monochrome image data. Since the luminance information of the original color image is reflected in the gradation value, according to this method, image data of a monochrome image reflecting the luminance of the original color image can be obtained. In addition, "R", "G", and "B" in the formula (1) are the red gradation value (gradation value), the green gradation value, and the blue gradation value of the color image data, respectively, and "Gray" Is the gray value (gray value), that is, the concentrati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/46H04N1/60
CPCH04N1/40012
Inventor 大野典
Owner SEIKO EPSON CORP
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