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A method and device for embedding additional information in an image

A technology in additional information and images, applied in image data processing, image data processing, instruments, etc., can solve the problems of time domain feature correlation, inability to flexibly hide additional information, etc.

Inactive Publication Date: 2011-12-07
SAMSUNG ELECTRONICS CHINA R&D CENT +1
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] However, the existing technology is usually aimed at the entire image, and uses a unified LSB number (or LSB level) to hide additional information, which is not well correlated with time-domain features such as image content, brightness, texture, and position, and cannot be flexible. Hide additional information

Method used

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  • A method and device for embedding additional information in an image
  • A method and device for embedding additional information in an image
  • A method and device for embedding additional information in an image

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Embodiment Construction

[0041] The core idea of ​​the present invention is to set different least significant bit (LSB) levels for different regions according to the time-domain characteristics of the image itself, and embed the border identification and additional information into the border of the region and the interior of the region respectively. In this way, not only the purpose of embedding additional information can be achieved, but also because different LSB levels are set for different regions, the additional information can be embedded more flexibly while ensuring that the image is not perceived.

[0042] figure 1 It is a flow chart of the method for embedding additional information in an image in the present invention. Such as figure 1 As shown, the method includes:

[0043] Step 101: Select at least one region from the image according to the time-domain characteristics of the image itself, and the region is composed of a boundary of the region and an interior of the region.

[0044] He...

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Abstract

The present invention provides a method and device for embedding additional information in an image, including: selecting at least one area from the image according to the temporal characteristics of the image itself, and the area is composed of the area boundary and the area inside; The time-domain features are respectively set with the corresponding least significant bit LSB level; for each region, according to the corresponding LSB level and the LSB hiding method is used to embed the pre-set boundary mark into the region boundary, according to the corresponding LSB level and adopt the LSB hiding method to Additional information is embedded inside the area. The application of the solution of the present invention not only realizes the hiding of additional information, but also embeds additional information more flexibly under the condition of ensuring that the image is not perceived.

Description

technical field [0001] The invention relates to digital image processing technology, in particular to a method and device for embedding additional information in an image. Background technique [0002] In digital image processing technology, certain algorithm can be used to hide some additional information in image data, such as hiding copyright protection information, image annotation or another digital image, etc. This digital image technology is usually divided into two types of algorithms based on the frequency domain and based on the time domain. Among them, the algorithms based on the time domain are mostly implemented using the least significant bit (LSB) principle, that is, the low-order bits of image pixels are used to hide additional information, and the high-order bits are still used to represent the pixel value of the point. Since the contribution of the low-order bits to the pixel value is relatively small, the human eye is not sensitive to changes in the low-o...

Claims

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Application Information

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IPC IPC(8): G06T1/00
Inventor 朱昊亮谢林杜乐
Owner SAMSUNG ELECTRONICS CHINA R&D CENT
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