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How to make multi-line text watermark

A production method and watermarking technology, applied in image data processing, instruments, image data processing, etc., can solve the problem of low complexity of electronic watermarking

Active Publication Date: 2018-02-06
SHANGHAI ZHONGXIN INFORMATION DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Aiming at the problem that the complexity of the electronic watermark in the prior art is not high, the purpose of the present invention is to provide a method for making a multi-line text watermark

Method used

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  • How to make multi-line text watermark
  • How to make multi-line text watermark
  • How to make multi-line text watermark

Examples

Experimental program
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Embodiment Construction

[0030] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] The idea of ​​the present invention is not to directly draw multi-line text watermarks on electronic files, but to solve two problems. The first problem is the realization of multi-line text watermark, and the second problem is to add multi-line text watermark on electronic files. Therefore, referring to figure 1 , the method for making a multi-line text watermark disclosed in the present invention can be divided into five steps, which will be further described in detail below.

[0032] S1: Convert the multi-line text into a watermark image. Such as figure 2 As shown, this step can be decomposed into three sub-steps S1.1-S1.3.

[0033] S1.1, calculate the size of the area actually occupied by the multi-line text. Specifically, the following steps are included:

[0034] Traverse multiple lines of watermark text, a...

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Abstract

The invention discloses a method for making a multi-line text watermark, which comprises the following steps: step 1, converting the multi-line text to generate a watermark picture; step 2, calculating the height and width of the watermark picture; step 3, judging the size of the watermark picture to be added File type; step 4, according to the file type, establish a coordinate system corresponding to the file type; step 5, add the watermark image to the file. The method for making a multi-line text watermark of the present invention realizes the addition of multi-line text watermarks for different types of electronic files, and each line of text in the text watermark can support different settings such as font style, font size, alignment, and line spacing.

Description

technical field [0001] The present invention relates to a digital watermark, more specifically, to a method for making a multi-line text watermark. Background technique [0002] Digital watermarking (Digital Watermarking) technology is to embed some identification information (ie digital watermark) directly into the digital carrier (including multimedia, documents, software, etc.) or indirectly represent (modify the structure of a specific area), without affecting the use of the original carrier The value is not easy to be detected and modified again, but it can be identified and identified by the producer. [0003] As a means of digital protection, digital watermarking can provide strong evidence for the ownership of copyright information by adding watermarks to electronic files, and can also monitor the dissemination of protected data, authenticity identification, and illegal copy control. And so on. Through the information hidden in the carrier, the purpose of confirmin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T1/00
Inventor 张曙华杨安荣路斌
Owner SHANGHAI ZHONGXIN INFORMATION DEV
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