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Image processing method, device and system

An image processing and image technology, applied in the field of image processing, equipment and systems, can solve the problems of complex setting process and difficulty for end users, and achieve the effect of easy setting

Inactive Publication Date: 2003-07-16
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the user must carefully set the individual parameters required for edge extraction, coloring, etc.
[0010] Thus, there is still room for improvement in image quality in order to obtain images in the form of illustrations
In addition, in order to obtain an appropriate setting, not only the setting process is complicated, but also requires the user to have a high technical
Therefore, it is difficult for the end user to obtain such a setting

Method used

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  • Image processing method, device and system
  • Image processing method, device and system
  • Image processing method, device and system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0059] system structure

[0060] Fig. 1 shows an example of an image processing system according to this embodiment. A printer 105, such as an inkjet printer or the like, and a monitor 106 are connected to the host 100.

[0061]The host 100 has an application software program 101, such as a word processing program, a magnification program, an Internet browser and the like, an OS (operating system) 102, a printer driver 103, which are used to process various drawing commands (image drawing commands) for instructing output images. , Text drawing instructions, chart drawing instructions), which are sent to the OS 102 by the application software program 101 and generate print data, and the monitor driver 104 is used to process various drawing instructions issued by the application software program 101 and monitor The data is displayed on the monitor 106. Reference numeral 112 is an instruction input device; 113 is a driver of the device. For example, a mouse for clicking various infor...

no. 2 example

[0125] Next, the second embodiment of the present invention will be described.

[0126] In the first embodiment, the simulation illustration processing of the original image is automatically performed. In the second embodiment, an image processing system that enables the user to input arbitrary editing instructions will be explained.

[0127] Since the system configuration of the second embodiment is the same as that of the first embodiment, detailed description thereof is omitted.

[0128] Fig. 9 is a flowchart showing image editing processing in the second embodiment. In FIG. 9, the same reference numerals as those in FIG. 3 of the first embodiment denote the same processing. Note that in the processing shown in FIG. 9, the processing that requires the user interface is implemented by a predetermined application software program 101, and other processing is implemented by the image correction processing unit 120 in the printer driver 103.

[0129] Selection of target image

[013...

no. 3 example

[0160] Next, the third embodiment of the present invention will be explained.

[0161] According to the first and second embodiments, simple analog illustration processing is realized on the photo image by filtering.

[0162] However, when using the printer driver to implement the simulation illustration processing, the following problems occur.

[0163] More specifically, serial printers typified by inkjet printers and the like are generally used to perform scanning processing in order to save the memory capacity used. In this case, because the image is segmented and processed, one processing unit does not always have data for multiple lines, and in extreme cases, only data for one line can be processed. Therefore, when performing analog illustration processing by filtering, the number of pixels to be filtered instead of the number of pixels of interest is usually very small. This means that the quality of the image obtained as a result of editing deteriorates.

[0164] In order ...

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PUM

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Abstract

In general, it is difficult for the end user to implement a simulate illustration process for an image, since manual setups of the process are complicated and require skills. Also, there is room for improvement in terms of image quality. In this invention, the luminance histogram of an original image is generated, the brightness of that image is detected based on the histogram, and the image undergoes a filter process corresponding to the detected brightness, thus easily performing the simulate illustration process using bright tone for the image. Especially, since a filter is set for rasterized image data in correspondence with the number of lines of the data to be processed, an effective simulate illustration process can be implemented.

Description

Technical field [0001] The invention relates to an image processing method, equipment and system for correcting original images. Background technique [0002] With the popularity of digital cameras, optical scanners and similar products in recent years, photo images can be easily converted into digital data. In addition, because output devices represented by inkjet printers obtain higher image quality and lower cost, end users can easily output photo images on recording paper at home. [0003] Therefore, using a personal computer or a similar device capable of image processing, the end user can edit the image detected by a digital camera, for example, as needed, and output the edited result through an inkjet printer. [0004] A process called posterization is proposed in, for example, Japanese Patent Publication 1-314389, and an illustration editing process is proposed, for example, in Japanese Patent Publications 3-91088 and 3-91087. [0005] Personal computers and printers that...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T1/00H04N1/40H04N1/407
CPCH04N1/4074H04N1/40093G06T1/00
Inventor 山添学铃木康友安西胜彦永田幸司铃木孝幸
Owner CANON KK