Digital watermarking processing method for BMP image

A BMP image and digital watermarking technology, applied in image data processing, image data processing, instruments, etc., can solve problems such as the inability to guarantee the originality and integrity of digital products, reduce the chance of being tampered with, and shorten the propagation path.

Inactive Publication Date: 2012-04-04
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional digital watermark embedding method is to realize the digital products that need anti-counterfeiting treatment through computer sof

Method used

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  • Digital watermarking processing method for BMP image
  • Digital watermarking processing method for BMP image
  • Digital watermarking processing method for BMP image

Examples

Experimental program
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Example Embodiment

[0026] Below in conjunction with accompanying drawing and embodiment, this method is further described:

[0027] like figure 1 As shown, the assembly of the digital watermark processing system of BMP image is completed first, and the digital watermark processing system of BMP image is composed of central processing module FPGA 1, JTAG interface 2, SDRAM memory 3, Flash memory 4, SD card interface 5 and LED indicator 6 The central processing module FPGA 1 is composed of a Nios II processor 7, a digital watermark processing module 8, a JTAG controller 10, an SDRAM controller 11, a tri-state bridge controller 12, an SD card controller 13, and a PIO controller 14; each The components are connected together by conventional connection through the data bus 9; The state bridge controller 12, the SD card controller 13, and the PIO controller 14 are connected.

[0028] like figure 2 As shown, the digital watermark processing module 8 is composed of a DCT2 transformation module 15, a...

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Abstract

The invention relates to a digital watermarking processing method for a BMP (bitmap) image, which belongs to the technical field of computer application. The method comprises the following steps of: firstly, building three folders in an SD card; next, automatically loading programs cured in an Flash memory by the digital watermarking processing system for BMP image after startup, and transmitting image data to a digital watermarking processing module for processing through an SDRAM (Synchronous Dynamic Random Access Memory) controller and a data bus; then, caching the BMP image data with watermarking information to an SDRAM memory through the data bus and the SDRAM controller; finally, writing the image data to the SD card in an SD card interface through the SDRAM controller, the data bus and the SD card controller, storing the BMP image embedded with the watermarking information, after storing, lighting up an LED indication lamp and finishing processing. The method is fast for processing speed, small in volume, simple, portable and convenient to timely execute copyright protection on the obtained original image information.

Description

[0001] technical field [0002] The invention relates to a digital watermark processing method of a BMP image, which belongs to the technical field of computer applications. Background technique [0003] With the development of multimedia processing technology and network technology, more and more digital products are released and disseminated conveniently on the network. While multimedia and communication technologies bring convenience, they also bring some negative effects. For example, some individuals or groups illegally copy, disseminate and sell copyrighted digital products without permission, which greatly damages the interests of copyright owners and manufacturers; in addition, digital products are often used for In judicial evidence collection, it is necessary to ensure the integrity and authenticity of digital products. If criminals use technical means to tamper or forge digital content (audio, video, images, etc.), it will hinder judicial justice. Therefore, how...

Claims

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Application Information

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IPC IPC(8): G06T1/00
Inventor 李玉惠李勃郝世博何鑫亮罗成绪
Owner KUNMING UNIV OF SCI & TECH
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