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Image trapping method and device

A trapping and image technology, applied in the field of image trapping, can solve the problems of large image damage and inconvenient trapping results.

Active Publication Date: 2012-01-11
PEKING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method and device for trapping to solve the problems in the prior art that the trapping damages the image greatly and the trapping result is inconvenient to modify and edit

Method used

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  • Image trapping method and device
  • Image trapping method and device

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Embodiment Construction

[0040] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0041] figure 1 It is a flow chart of the basic steps of the image trapping method according to the embodiment of the present invention.

[0042] Such as figure 1 As shown, the basic steps of the image trapping method in this embodiment mainly include the following steps S11 to S15:

[0043] Step S11: Determine the boundaries existing in the image.

[0044] Step S13: analyzing the color information on both sides of the boundary to determine representative colors on both sides of the boundary.

[0045] Step S15: Trapping is performed taking the boundary as the whole object.

[0046] It can be seen from the above steps that this embodiment mainly determines the area to be trapped based on th...

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Abstract

The invention discloses an image trapping method and an image trapping device, which aim to solve the problems of relatively more damages of trapping to images and inconvenience of modification and edition of trapping results in the prior art. The method comprises the following steps of: determining a boundary in the image; analyzing color information on the two sides of the boundary, and determining representative colors on the two sides of the boundary; and performing trapping by taking the boundary as a whole object. By the technical scheme provided by the invention, only an area in the vicinity of the boundary is trapped, so the image is relatively less damaged, and the trapped area can be modified and edited.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image trapping method and device. Background technique [0002] Trapping technology is one of the key technologies of prepress processing, and it is divided into graphic trapping and image trapping according to different processing objects. Due to its wide range of applications, graphic trapping has been greatly developed, and major companies in the printing and plate making industry have related products. Due to the limited application of image trapping, and the unstable quality of raster images, there is no direct information available, and the technical difficulty is relatively large. Therefore, for a long time, experienced prepress processing personnel have used human understanding and experience to perform image trapping. Handled manually. The manual processing mode of image trapping has problems such as low quality of trapping processing, unstable proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/58
Inventor 袁梦尤张宏志薛涛李平立
Owner PEKING UNIV
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